torque FORD FIESTA 1989 Service Service Manual

6If such tools are not available, press the
seal squarely into place by hand; tap it in until
it is flush with the pump housing, using a soft-
faced mallet and a socket with an outside
diameter only slightly smaller than the seal’s
(see illustration) . This approach requires
great care, to ensure that the seal is fitted
squarely, without distortion or damage.
7 Wash off any traces of oil. The remainder of
reassembly is the reverse of the removal
procedure, referring to the relevant text for
details where required. Check for signs of oil
leakage when the engine is restarted.
Left-hand seal
8 Remove the transmission (see the relevant
Part of Chapter 7).
9 Where appropriate, remove the clutch
(Chapter 6).
10 Unbolt the flywheel/driveplate (see
Section 17).
11 Remove the sump (see Section 13).
12 Unbolt the oil seal carrier (see
illustration) . Remove and discard its gasket.
13 Supporting the carrier evenly on wooden
blocks, drive the oil seal out of the carrier from
behind (see illustration) .
14 Clean the seal housing and crankshaft,
polishing off any burrs or raised edges, which
may have caused the seal to fail in the first
place. Clean also the mating surfaces of the
cylinder block/crankcase and carrier, using a scraper to remove all traces of the old gasket
- be careful not to scratch or damage the
material of either - then use a suitable solvent
to degrease them.
15
Use grease to stick the new gasket in
place on the cylinder block/crankcase, then
offer up the carrier (see illustration).
16 Using a suitable straight edge and feeler
gauges, check that the carrier is both centred
exactly around the crankshaft, and aligned
squarely so that its (sump) mating surface is
exactly the same amount - between 0.3 and
0.8 mm - below that of the cylinder
block/crankcase on each side of the
crankshaft (see illustration) . Being careful
not to disturb the gasket, move the carrier into
the correct position, and tighten its bolts to
the specified torque wrench setting.
17 Check that the carrier is correctly located;
if necessary, unbolt it again, and repeat the
full procedure to ensure that the carrier is
correctly aligned.
18 Ford’s recommended method of seal
fitting is to use service tool 21-141, with two
flywheel bolts to draw the seal into place. If
this is not available, make up a guide from a
thin sheet of plastic or similar, lubricate the
lips of the new seal and the crankshaft
shoulder with grease, then offer up the seal,
with the guide feeding the seal’s lips over the
crankshaft shoulder (see illustration) . Press
the seal evenly into its housing by hand only, and use a soft-faced mallet gently to tap it
into place until it is flush with the surrounding
housing.
19
Wipe off any surplus oil or grease; the
remainder of the reassembly procedure is the
reverse of dismantling, referring to the relevant
text for details where required. Check for signs
of oil leakage when the engine is restarted.
16 Engine/transmission mountings -
inspection and renewal
1
Inspection
1 The engine/transmission mountings seldom
require attention, but broken or deteriorated
mountings should be renewed immediately, or
the added strain placed on the driveline
components may cause damage or wear.
2 During the check, the engine/transmission
must be raised slightly, to remove its weight
from the mountings.
3 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and Vehicle Support” ). Position
a jack under the sump, with a large block of
wood between the jack head and the sump,
then carefully raise the engine/transmission
just enough to take the weight off the
mountings.
Zetec engine in-car repair procedures 2C•15
15.13 . . . and ensure that carrier is
properly supported when driving out used oil seal - note notches provided in carrier for drift15.12 Unscrew bolts (arrowed) to removecrankshaft left-hand oil seal carrier . . .15.6 If seal is tapped into place as shown,exercise great care to prevent seal from being damaged or distorted
15.18 Using guide made from thin sheet ofplastic to slide oil seal lips over crankshaft
shoulder15.16 Oil seal carrier must be positionedaccurately15.15 Use new gasket when refitting left-hand oil seal carrier
2C
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4Check the mountings to see if the rubber is
cracked, hardened or separated from the
metal components. Sometimes, the rubber
will split right down the centre.
5 Check for relative movement between each
mounting’s brackets and the engine/
transmission or body (use a large screwdriver
or lever to attempt to move the mountings). If
movement is noted, lower the engine and
check-tighten the mounting fasteners.
Renewal
6 The engine mountings can be removed if
the weight of the engine/transmission is
supported by one of the following alternative
methods.
7 Either support the weight of the assembly
from underneath using a jack and a suitable
piece of wood between the jack saddle and
the sump or transmission (to prevent
damage), or from above by attaching a hoist
to the engine. A third method is to use a
suitable support bar with end pieces which
will engage in the water channel each side of
the bonnet lid aperture. Using an adjustable
hook and chain connected to the engine, the
weight of the engine and transmission can
then be taken from the mountings.
Engine front right-hand mounting
8 This mounting consists of a two-piece
bracket bolted to the inner wing panel,
connected by the bonded-rubber mounting
itself to a (Y-shaped) bracket, bolted (via the
alternator mounting bracket) to the cylinder
block (see illustration) .
9 Unscrew the three bolts securing the front
right-hand mounting bracket to the alternator
mounting bracket.
10 Unscrew the bolts securing the mounting
bracket to the inner wing panel and chassis
rail and withdraw the mounting assembly.
Engine rear right-hand mounting
11 This mounting consists of the bonded-
rubber mounting secured to the inner wing
panel by a (horizontal) bolt, accessible from
within the wheel arch, and a (vertical) stud, the
retaining nut of which is accessible from the
engine compartment. The mounting is bolted
to a bracket, which is in turn bolted to the
cylinder block.
12 Unbolt the mounting from the body by
unscrewing first the single nut (and washer)
immediately to the rear of the timing belt
cover, then the bolt in the wheel arch.
13 Unbolt the mounting from the cylinder
block bracket and withdraw the mounting
assembly.
Transmission bearer and mountings
14 On XR2i models, remove the front
suspension crossmember as described in
Chapter 10.
15 Unscrew and remove the two nuts
securing the mountings (front and rear) to the
transmission bearer
16 Support the transmission bearer, then
undo and remove the four retaining bolts from
the floorpan, two at the front and two at the
rear, and lower the transmission bearer from
the vehicle. Note plate fitment, as applicable,
for reassembly.
17 To remove the mountings from the
transmission, unscrew the upper bolt and
lower stud (front mounting) or the three nuts
(rear mounting) and withdraw the relevant
mounting and bracket assembly from the
transmission.
All mountings
18 Refitting of all mountings is a reversal of
removal. Make sure that the original sequence
of assembly of washers and plates is
maintained.
19 Do not fully tighten any mounting bolts
until they are all located. As the mounting
bolts and nuts are tightened, check that the
mounting rubbers do not twist.
17 Flywheel/driveplate -
removal, inspection and
refitting
3
Removal
1 Remove the transmission (see the relevant
Part of Chapter 7).
2 Where appropriate, remove the clutch
(Chapter 6).
3 Use a centre-punch or paint to make alignment marks on the flywheel/driveplate
and crankshaft, to ensure correct alignment
during refitting.
4
Prevent the flywheel/driveplate from turning
by locking the ring gear teeth, or by bolting a
strap between the flywheel/driveplate and the
cylinder block/crankcase. Slacken the bolts
evenly until all are free.
5 Remove each bolt in turn, and ensure that
new replacements are obtained for
reassembly; these bolts are subjected to
severe stresses, and so must be renewed,
regardless of their apparent condition,
whenever they are disturbed.
6 Noting the reinforcing plate (automatic
transmission models only), withdraw the
flywheel/driveplate; do not drop it - it is very
heavy.
Inspection
7 Clean the flywheel/driveplate to remove
grease and oil. Inspect the surface for cracks,
rivet grooves, burned areas and score marks.
Light scoring can be removed with emery
cloth. Check for cracked and broken ring gear
teeth. Lay the flywheel/driveplate on a flat
surface, and use a straight edge to check for
warpage.
8 Clean and inspect the mating surfaces of
the flywheel/driveplate and the crankshaft. If
the crankshaft left-hand seal is leaking, renew
it (see Section 15) before refitting the
flywheel/driveplate.
9 While the flywheel/driveplate is removed,
clean carefully its inboard (right-hand) face,
particularly the recesses which serve as the
reference points for the crankshaft speed/
position sensor. Clean the sensor’s tip, and
check that the sensor is securely fastened.
Refitting
10 On refitting, ensure that the engine/
transmission adapter plate is in place (where
necessary), then fit the flywheel/driveplate to
the crankshaft so that all bolt holes align - it
will fit only one way - check this using the
marks made on removal. Do not forget the
reinforcing plate (automatic transmission
models).
11 Lock the flywheel/driveplate by the
method used on dismantling. Working in a
diagonal sequence to tighten them evenly,
and increasing to the final amount in two or
three stages, tighten the new bolts to the
specified torque wrench setting.
12 The remainder of reassembly is the
reverse of the removal procedure, referring to
the relevant text for details where required.
2C•16 Zetec engine in-car repair procedures
16.8 Engine front right-hand mounting
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Camshaft
Endfloat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . 0.02 to 0.19 mm
Torque wrench settingsNmlbf ft
Main bearing cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 9570
* Crankpin (big-end) bearing cap bolts:
Stage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . 4 3
Stage 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Angle-tighten a further 90º
Engine-to-transmission bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4130
* New bolts must be used
Note: Refer to Part A of this Chapter for remaining torque wrench settings.
CVH and PTE engines
Cylinder head
Maximum permissible gasket surface distortion (measured over
full length) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . 0.15 mm
Camshaft bearing bore diameters in cylinder head (standard): Bearing 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 44.783 to 44.808 mm
Bearing 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.033 to 45.058 mm
Bearing 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.283 to 45.308 mm
Bearing 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.533 to 45.558 mm
Bearing 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.783 to 45.808 mm
Camshaft bearing bore diameters in cylinder head (oversize): Bearing 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.188 to 45.163 mm
Bearing 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.438 to 45.413 mm
Bearing 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.668 to 45.663 mm
Bearing 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 45.938 to 45.913 mm
Bearing 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 46.188 to 46.163 mm
Valve tappet bore diameter (standard) . . . . . . . . . . . . . . . . . . . . . . . . . . 22.235 to 22.265 mm
Valve tappet bore diameter (oversize) . . . . . . . . . . . . . . . . . . . . . . . . . . 22.489 to 22.519 mm
Valve seat angle (inlet and exhaust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44º 30’ to 45º 30’
Valve seat width (inlet and exhaust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.75 to 2.32 mm*
*The cylinder head has valve seat rings on the exhaust side. These valve\
seats cannot be recut with conventional tools.
Valves - generalInlet Exhaust
Valve length: 1.4 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 136.29 to 136.75 mm 132.97 to 133.43 mm
1.6 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 134.54 to 135.00 mm 131.57 to 132.03 mm
Valve head diameter:
1.4 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 39.90 to 40.10 mm 33.90 to 34.10 mm
1.6 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 41.90 to 42.10 mm 36.90 to 37.10 mm
Valve stem diameter (standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.025 to 8.043 mm 7.999 to 8.017 mm
Valve stem diameter (0.2 mm oversize) . . . . . . . . . . . . . . . . . . . . . . . . . 8.225 to 8.243 mm 8.199 to 8.217 mm
Valve stem diameter (0.4 mm oversize) . . . . . . . . . . . . . . . . . . . . . . . . . 8.425 to 8.443 mm 8.399 to 8.417 mm
Valve stem-to-guide clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.020 to 0.063 mm 0.046 to 0.089 mm
Cylinder block
Cylinder bore diameter:
1.4 litre engine: Standard 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 77.22 to 77.23 mm
Standard 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 77.23 to 77.24 mm
Standard 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 77.24 to 77.25 mm
Standard 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 77.25 to 77.26 mm
Oversize A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 77.51 to 77.52 mm
Oversize B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 77.52 to 77.53 mm
Oversize C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 77.53 to 77.54 mm
1.6 litre engine: Standard 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 79.94 to 79.95 mm
Standard 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 79.95 to 79.96 mm
Standard 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 79.96 to 79.97 mm
Standard 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 79.97 to 79.98 mm
Oversize A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 80.23 to 80.24 mm
Oversize B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 80.24 to 80.25 mm
Oversize C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 80.25 to 80.26 mm
Engine removal and overhaul procedures 2D•3
2D
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Torque wrench settingsNmlbf ft
Main bearing caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 9570
Crankpin (big-end) bearing caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3324
Engine-to-transmission bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4130
Note: Refer to Part B of this Chapter for remaining torque wrench settings.
Zetec engines
Cylinder head
Maximum permissible gasket surface distortion . . . . . . . . . . . . . . . . . . 0.10 mm
Valve seat included angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
90º
Valve guide bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 6.060 to 6.091 mm
Valves - generalInlet Exhaust
Valve length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 96.870 to 97.330 mm 96.470 to 96.930 mm
Valve head diameter: 1.6 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 26.0 mm 24.5 mm
1.8 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 32.0 mm 28.0 mm
Valve stem diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 6.028 to 6.043 mm 6.010 to 6.025 mm
Valve stem-to-guide clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.017 to 0.064 mm 0.035 to 0.081 mm
Cylinder block
Cylinder bore diameter: 1.6 litre engine: Class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 76.000 to 76.010 mm
Class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 76.010 to 76.020 mm
Class 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 76.020 to 76.030 mm
1.8 litre engine:
Class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 80.600 to 80.610 mm
Class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 80.610 to 80.620 mm
Class 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 80.620 to 80.630 mm
Pistons and piston rings
Piston diameter1.6 litre engine: Class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 75.975 to 75.985 mm
Class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 75.985 to 75.995 mm
Class 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 75.995 to 76.005 mm
1.8 litre engine:
Class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 80.570 to 80.580 mm
Class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 80.580 to 80.590 mm
Class 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 80.590 to 80.600 mm
Oversizes - all engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
None available
Piston-to-cylinder bore clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not specified
Piston ring end gaps - installed: Compression rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 0.30 to 0.50 mm
Oil control ring: 1.6 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 0.25 to 1.00 mm
1.8 litre engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 0.38 to 1.14 mm
Gudgeon pin
Diameter:
White colour code/piston crown marked “A” . . . . . . . . . . . . . . . . . . . 20.622 to 20.625 mm
Red colour code/piston crown marked “B” . . . . . . . . . . . . . . . . . . . . 20.625 to 20.628 mm
Blue colour code/piston crown marked “C” . . . . . . . . . . . . . . . . . . . . 20.628 to 20.631 mm
Clearance in piston . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 0.010 to 0.016 mm
Interference fit in connecting rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.011 to 0.042 mm
Crankshaft and bearings
Main bearing journal standard diameter . . . . . . . . . . . . . . . . . . . . . . . . . 57.980 to 58.000 mm Main bearing journal-to-shell running clearance . . . . . . . . . . . . . . . . . . 0.011 to 0.058 mm
Main bearing shell undersizes available . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 mm, 0.25 mmCrankpin (big-end) bearing journal standard diameter . . . . . . . . . . . . . . 46.890 to 46.910 mm
Crankpin (big-end) bearing journal-to-shell running clearance . . . . . . . 0.016 to 0.070 mm
Big-end bearing shell undersizes available . . . . . . . . . . . . . . . . . . . . . . 0.02 mm, 0.25 mm
Crankshaft endfloat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 0.090 to 0.310 mm
Engine removal and overhaul procedures 2D•5
2D
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Torque wrench settingsNmlbf ft
Main bearing cap bolts and nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8059
Crankpin (big-end) bearing cap bolts: Stage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . 1813
Stage 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Angle-tighten a further 90º
Piston-cooling oil jet/blanking plug Torx screws . . . . . . . . . . . . . . . . . . 9 7
Cylinder block and head oilway blanking plugs:
M6 x 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . 9 7
M10 x 11.5 - in block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 2317
1/4 PTF plug - in block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
2418
Engine-to-transmission bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4130
Note: Refer to Part C of this Chapter for remaining torque wrench settings.
2D•6 Engine removal and overhaul procedures
1595Ford Fiesta Remake
1 General information
Included in this Part of Chapter 2 are details
of removing the engine/transmission from the
car and general overhaul procedures for the
cylinder head, cylinder block/crankcase and
all other engine internal components.
The information given ranges from advice
concerning preparation for an overhaul and
the purchase of replacement parts, to detailed
step-by-step procedures covering removal,
inspection, renovation and refitting of engine
internal components.
After Section 6, all instructions are based
on the assumption that the engine has been
removed from the car. For information
concerning in-car engine repair, as well as the
removal and refitting of those external
components necessary for full overhaul, refer
to Part A, B or C of this Chapter (as
applicable) and to Section 6. Ignore any
preliminary dismantling operations described
in Part A, B or C that are no longer relevant
once the engine has been removed from the
car.
2 Engine/transmission removal - preparation and
precautions
If you have decided that an engine must be
removed for overhaul or major repair work,
several preliminary steps should be taken.
Locating a suitable place to work is
extremely important. Adequate work space,
along with storage space for the car, will be
needed. If a workshop or garage is not
available, at the very least, a flat, level, clean
work surface is required. If possible, clear some shelving close to the
work area and use it to store the engine
components and ancillaries as they are
removed and dismantled. In this manner the
components stand a better chance of staying
clean and undamaged during the overhaul.
Laying out components in groups together
with their fixing bolts, screws etc will save
time and avoid confusion when the engine is
refitted. Clean the engine compartment and
engine/transmission before beginning the
removal procedure; this will help visibility and
help to keep tools clean. On three of the engines covered in this
manual (CVH, PTE, and Zetec), the unit can
only be withdrawn by removing it complete
with the transmission; the vehicle’s body must
be raised and supported securely, sufficiently
high that the engine/transmission can be
unbolted as a single unit and lowered to the
ground; the engine/transmission unit can then
be withdrawn from under the vehicle and
separated. On all engines, an engine hoist or
A- frame will be necessary. Make sure the
equipment is rated in excess of the combined
weight of the engine and transmission. The help of an assistant should be
available; there are certain instances when
one person cannot safely perform all of the
operations required to remove the engine
from the vehicle. Safety is of primary
importance, considering the potential hazards
involved in this kind of operation. A second
person should always be in attendance to
offer help in an emergency. If this is the first
time you have removed an engine, advice and
aid from someone more experienced would
also be beneficial. Plan the operation ahead of time. Before
starting work, obtain (or arrange for the hire
of) all of the tools and equipment you will
need. Access to the following items will allow
the task of removing and refitting the
engine/transmission to be completed safely
and with relative ease: an engine hoist - rated
in excess of the combined weight of the
engine/transmission, a heavy-duty trolley
jack, complete sets of spanners and sockets
as described in “ Tools and working facilities ”
at the rear this manual, wooden blocks, and
plenty of rags and cleaning solvent for
mopping up spilled oil, coolant and fuel. A
selection of different sized plastic storage bins
will also prove useful for keeping dismantled
components grouped together. If any of the
equipment must be hired, make sure that you
arrange for it in advance, and perform all of
the operations possible without it beforehand;
this may save you time and money. Plan on the vehicle being out of use for
quite a while, especially if you intend to carry
out an engine overhaul. Read through the
whole of this Section and work out a strategy based on your own experience and the tools,
time and workspace available to you. Some of
the overhaul processes may have to be
carried out by a Ford dealer or an engineering
works - these establishments often have busy
schedules, so it would be prudent to consult
them before removing or dismantling the
engine, to get an idea of the amount of time
required to carry out the work.
When removing the engine from the vehicle,
be methodical about the disconnection of
external components. Labelling cables and
hoses as they removed will greatly assist the
refitting process.
Always be extremely careful when lifting the
engine/transmission assembly from the
engine bay. Serious injury can result from
careless actions. If help is required, it is better
to wait until it is available rather than risk
personal injury and/or damage to components
by continuing alone. By planning ahead and
taking your time, a job of this nature, although
major, can be accomplished successfully and
without incident.
3 Engine - removal and
refitting (HCS engines)
3
Warning: Petrol is extremely
flammable, so take extra
precautions when disconnecting
any part of the fuel system.
Don’t smoke, or allow naked flames or bare
light bulbs, in or near the work area, and
don’t work in a garage where a natural-gas
appliance (such as a clothes dryer or water
heater) is installed. If you spill petrol on
your skin, rinse it off immediately. Have a
fire extinguisher rated for petrol fires
handy, and know how to use it.
Note: Read through the entire Section, as well
as reading the advice in the preceding
Section, before beginning this procedure. The
engine is removed separately from the
transmission and is lifted upwards and out of
the engine compartment.
Removal
1 On fuel injection engines, refer to Chap-
ter 4B and depressurise the fuel system.
2 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
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transmission flange attachment bolts (see
illustration) .
19 Check that the appropriate underside
attachments are disconnected and out of the
way, then lower the vehicle to the ground.
20 Unbolt and remove the heat shield from
the exhaust manifold.
21 Attach a suitable hoist to the engine. It is
possible to fabricate lifting eyes to connect
the hoist to the engine, but make sure that
they are strong enough, and connect them to
the inlet and exhaust manifold at diagonally-
opposite ends of the engine.
22 With the hoist securely connected, take
the weight of the engine. Unscrew and
remove the right-hand engine mounting side
bolt from under the right-hand wheel arch.
Unscrew and remove the mounting retaining
nut and washer from the suspension strut cup
retaining plate, and the three bolts securing
the mounting unit to the cylinder block.
23 Locate a jack under the transmission, and
raise it to take the weight of the transmission.
24 Unscrew and remove the remaining
engine-to-transmission retaining bolts on the
upper flange.
25 Check around the engine to ensure that all
of the relevant fixings and attachments are
disconnected and out of the way for the
removal.
26 Enlist the aid of an assistant, then move
the engine sideways and away from the
transmission, whilst simultaneously raising
the transmission. When the engine is
separated from the transmission, carefully
guide it up and out of the engine
compartment. Do not allow the weight of the
engine to hang on the transmission input shaft
at any point during the removal (or refitting) of
the engine. When the engine sump is clear
of the vehicle, swing the power unit out of the
way, and lower it onto a trolley (if available).
Unless a mobile hoist is being used, it will be
necessary to move the vehicle rearwards and
out of the way in order to allow the engine to
be lowered for removal. In this instance,
ensure that the weight of the transmission is
well supported as the vehicle is moved.
27 While the engine is removed, check the
mountings; renew them if they are worn or
damaged. Similarly, check the condition of all
coolant and vacuum hoses and pipes (see Chapter 1); components that are normally
hidden can now be checked properly, and
should be renewed if there is any doubt at all
about their condition. Also, take the
opportunity to overhaul the clutch
components (see Chapter 6). It is regarded by
many as good working practice to renew the
clutch assembly as a matter of course,
whenever major engine overhaul work is
carried out. Check also the condition of all
components disturbed on removal, and renew
any that are damaged or worn.
Refitting
28
Refitting is in general, a reversal of the
removal procedure, but the following special
points should be noted.
29 Before coupling the engine to the
transmission, apply a thin smear of high-
melting-point grease onto the transmission
input shaft splines. If the clutch has been
removed, ensure that the clutch disc is
centralised, and disconnect the clutch cable
from the release lever on the transmission
casing.
30 Tighten all fixings to their recommended
torque wrench settings.
31 Check that the mating faces are clean,
and fit a new exhaust downpipe-to-manifold
gasket and self-locking nuts when
reconnecting this joint.
32 Ensure that all wiring connections are
correctly and securely made.
33 Remove the plugs from the fuel lines
before reconnecting them correctly and
securely.
34 Reconnect and adjust the accelerator and
choke cables as described in the relevant Part
of Chapter 4. The refitting details for the air
cleaner components are also given in that
Chapter.
35 Renew any coolant hoses (and/or
retaining clips) that are not in good condition.
36 Refer to Chapter 6 for details on
reconnecting the clutch cable.
37 When the engine is fully refitted, check
that the various hoses are connected, and
then top-up the engine oil and coolant levels
as described in Chapter 1 and “Weekly
Checks”.
38 When engine refitting is completed, refer to
Section 19 for the engine start-up procedures.
4 Engine/transmission -
removal and refitting (CVH and
PTE engines)
3
Warning: Petrol is extremely
flammable, so take extra
precautions when disconnecting
any part of the fuel system.
Don’t smoke, or allow naked flames or bare
light bulbs, in or near the work area, and
don’t work in a garage where a natural-gas
appliance (such as a clothes dryer or water
heater) is installed. If you spill petrol on
your skin, rinse it off immediately. Have a
fire extinguisher rated for petrol fires
handy, and know how to use it.
Note: Read through the entire Section, as well
as reading the advice in Section 2, before
beginning this procedure. The engine and
transmission are removed as a unit, lowered to
the ground and removed from underneath,
then separated outside the vehicle.
Removal
1 On all fuel injection engines, refer to
Chapter 4B, C or D as applicable and
depressurise the fuel system.
2 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
3 Referring to Chapter 1 for details, drain the
coolant and the engine oil. Refit the drain plug
to the sump on completion.
4 Refer to Chapter 11 for details, and remove
the bonnet.
5 Remove the air cleaner assembly and air
inlet components as described in the relevant
Part of Chapter 4.
6 Release the retaining clips and detach the
coolant top hose, the heater hose and the
radiator overflow hose from the thermostat
housing. Disconnect the coolant hose from
the inlet manifold, and the bottom hose from
the water pump and/or the radiator (see
illustrations) . On 1.4 litre CFi fuel injection
models, also disconnect the coolant hose
from the injection unit. On EFi and SEFi fuel
injection models, detach the heater hose
Y-connector. Allow for coolant spillage as the
hoses are detached. On turbocharged
engines, disconnect the coolant return hose
from the turbocharger connecting pipe.
2D•8 Engine removal and overhaul procedures
4.6b Heater coolant hoses and Y-connector on 1.6 litre EFi fuel injection models4.6a Coolant hose connections to the thermostat (arrowed)
3.18 Engine-to-transmission flangeattachment bolts (arrowed)
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25Unscrew the retaining bolt, and detach
the shift rod stabiliser from the transmission.
As it is detached, note the washer located
between the stabiliser and the transmission.
Tie the stabiliser and the shift rod up out of
the way.
Automatic transmission models
26 Unclip and detach the wiring connector
from the starter inhibitor switch (on the
transmission housing).
27 Referring to the relevant Part of Chapter 4
for details, unhook the accelerator (cam plate)
cable from the carburettor or fuel injection unit
(as applicable) at the transmission end of
the cable. Undo the retaining bolt and
detach the cable sheath bracket from the
transmission. Detach the cam plate cable
from the link.
28 Undo the two nuts from the selector cable
bracket which connects it to the lever on the
selector shaft. Disconnect the yoke from the
lever on the selector shaft and the cable from
the lever.
29 Unscrew the union nuts, and disconnect
the oil cooler feed and return pipes from the
transmission. Allow for a certain amount of
spillage, and plug the connections to prevent
the ingress of dirt.
All models
30 Unscrew the retaining nut and withdraw
the Torx-type clamp bolt securing the lower
suspension arm to the spindle carrier on each
side.
31 Refer to Chapter 10 for details, and
detach the right-hand and left-hand track rod
end balljoints from the spindle carriers.
32 On vehicles fitted with the anti-lock
braking system, refer to Chapter 9 and release
the right-hand modulator from its mounting
bracket without disconnecting the rigid brake
pipes or return hose. Tie the modulator
securely to the bulkhead. Additionally, undo
the three bolts securing the modulator
bracket.
33 Insert a suitable lever between the right-
hand driveshaft inner joint and the
transmission housing, and prise free the
driveshaft from the transmission; be prepared
for oil spillage from the transmission case
through the vacated driveshaft aperture. As it
is being prised free, simultaneously pull the
roadwheel outwards on that side, to enable
the driveshaft inboard end to separate
from the transmission. Once it is free,
suspend and support the driveshaft from the
steering gear, to prevent unnecessary strain
being placed on the driveshaft joints.
34 Insert a suitable plastic plug (or if
available, an old driveshaft joint), into the
transmission driveshaft aperture, to
immobilise the gears of the differential unit.
35 Proceed as described above in
paragraphs 33 and 34, and disconnect the
left-hand driveshaft from the transmission.
36 Connect a suitable lift hoist and sling to
the engine, connecting to the lifting eyes. When securely connected, take the weight of
the engine/transmission unit so that the
tension is relieved from the mountings.
37
Undo the retaining bolts and nuts and
detach the right-hand engine mounting from
the vehicle body.
38 Undo the four bolts securing the
transmission bearer to the underside of the
vehicle body. The transmission bearer is
removed with the engine/transmission
assembly.
39 Unscrew the three retaining bolts, and
remove the auxiliary drivebelt cover from
under the crankshaft pulley.
40 The engine/transmission unit should now
be ready for removal from the vehicle. Check
that all of the associated connections and
fittings are disconnected from the engine and
transmission, and positioned out of the way.
41 Enlist the aid of an assistant to help
steady and guide the power unit down
through the engine compartment as it is
removed. If available, position a suitable
engine trolley or crawler board under the
engine/transmission so that when lowered,
the power unit can be withdrawn from the
front end of the vehicle, and then moved to
the area where it is to be cleaned and
dismantled. On automatic transmission
models, particular care must be taken not to
damage the transmission fluid pan (sump)
during the removal and subsequent refitting
processes.
42 Carefully lower the engine and
transmission unit, ensuring that no fittings
become snagged. Detach the hoist and
remove the power unit from under the vehicle.
43 Referring to the relevant Part of Chapter 7,
separate the transmission from the engine.
44 While the engine/transmission is removed,
check the mountings; renew them if they are
worn or damaged. Similarly, check the
condition of all coolant and vacuum hoses
and pipes (see Chapter 1). Components that
are normally hidden can now be checked
properly, and should be renewed if there is
any doubt at all about their condition. Where
the vehicle is fitted with manual transmission,
take the opportunity to inspect the clutch
components (see Chapter 6). It is regarded by
many as good working practice to renew the
clutch assembly as a matter of course,
whenever major engine overhaul work is
carried out. Check also the condition of all
components (such as the transmission oil
seals) disturbed on removal, and renew any
that are damaged or worn.
Refitting
45 Refitting is a reversal of removal, however
note the following additional points:
a) Refer to the applicable Chapters and Sections as for removal.
b) Fit new spring clips to the grooves in the
inboard end of the right- and left-hand
driveshaft joints. Lubricate the splines
with transmission oil prior to fitting. c) Renew the exhaust flange gasket when
reconnecting the exhaust. Ensure that all
wires are routed clear of the exhaust
system and, on catalytic converter
models, ensure that the heat shields are
securely and correctly fitted.
d) Ensure that all earth lead connections are
clean and securely made.
e) Tighten all nuts and bolts to the specified torque.
f) Fit a new oil filter, and refill the engine and transmission with oil, with reference to
Chapter 1.
g) Refill the cooling system with reference to Chapter 1.
h) Refit the alternator and starter motor with reference to Chapter 5A.
i) Where applicable, refit the power steering pump with reference to Chapter 10.
46 When engine and transmission refitting is
complete, refer to the procedures described
in Section 19 before restarting the engine.
5 Engine/transmission -
removal and refitting
(Zetec engines)
3
Warning: Petrol is extremely
flammable, so take extra
precautions when disconnecting
any part of the fuel system.
Don’t smoke, or allow naked flames or
bare light bulbs, in or near the work area,
and don’t work in a garage where a
natural-gas appliance (such as a clothes
dryer or water heater) is installed. If you
spill petrol on your skin, rinse it off
immediately. Have a fire extinguisher rated
for petrol fires handy, and know how to
use it.
Note: Read through the entire Section, as well
as reading the advice in Section 2, before
beginning this procedure. The engine and
transmission are removed as a unit, lowered to
the ground and removed from underneath,
then separated outside the vehicle.
Removal
1 Park the vehicle on firm, level ground, apply
the handbrake firmly, and slacken the nuts
securing both front roadwheels.
2 Depressurise the fuel system as described
in Chapter 4D.
3 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
4 Place protective covers on the wings, then
remove the bonnet (see Chapter 11).
5 Drain the cooling system and the engine oil
(see Chapter 1).
6 Remove the air inlet components and the
complete air cleaner assembly as described in
Chapter 4D.
7 Equalise the pressure in the fuel tank by
removing the filler cap, then release the fuel
feed and return quick-release couplings, and
pull the hoses off the fuel pipes. Plug or cap
all open fittings.
2D•10 Engine removal and overhaul procedures
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25On automatic transmission models, clean
around the unions, then disconnect the fluid
pipes from the transmission. Plug the
openings in the transmission and the pipe
unions after removal.
26 Refer to Chapter 10 and remove the front
suspension crossmember.
27 Unscrew the nuts to disconnect the
exhaust system front downpipe from the
manifold. Undo the nuts securing the catalytic
converter to the rear part of the exhaust
system, and remove the converter and
downpipe assembly.
28 On vehicles fitted with the anti-lock braking
system, refer to Chapter 9 and release the
right-hand modulator from its mounting
bracket without disconnecting the rigid brake
pipes or return hose. Tie the modulator
securely to the bulkhead. Additionally, undo
the three bolts securing the modulator bracket.
29 Disconnect both anti-roll bar links from
their respective suspension struts, and both
track rod end ball joints from their spindle
carriers (see Chapter 10).
30 Unscrew the retaining nut and withdraw
the Torx-type clamp bolt securing the lower
suspension arm to the spindle carrier on each
side.
31 Insert a suitable lever between the right-
hand driveshaft inner joint and the
transmission housing, and prise free the
driveshaft from the transmission; be prepared
for oil spillage from the transmission case
through the vacated driveshaft aperture. As it
is being prised free, simultaneously pull the
roadwheel outwards on that side to enable the
driveshaft inboard end to separate from the
transmission. Once it is free, suspend and
support the driveshaft from the steering gear,
to prevent unnecessary strain being placed on
the driveshaft joints.
32 Insert a suitable plastic plug (or if
available, an old driveshaft joint), into the
transmission driveshaft aperture, to
immobilise the gears of the differential unit.
33 Proceed as described above in
paragraphs 31 and 32, and disconnect the
left-hand driveshaft from the transmission.
34 Remove the oil filter, referring to Chapter 1
if necessary.
35 Connect a suitable lift hoist and sling to
the engine, connecting to the lift eyes. When
securely connected, take the weight of the
engine/transmission unit so that the tension is
relieved from the mountings.
36 Unbolt the engine rear right-hand
mounting from the body (one bolt in the wheel
arch, one nut in the engine compartment),
then unbolt the engine front right-hand
mounting from the alternator mounting
bracket. Unbolt the transmission bearer from
the underbody.
37 The engine/transmission unit should now
be hanging on the hoist only, with all
components which connect it to the rest of
the vehicle disconnected or removed, and
secured well clear of the unit. Make a final
check that this is the case. 38
Lower the engine/transmission to the
ground, and withdraw it from under the
vehicle.
39 Referring to the relevant Part of Chapter 7,
separate the transmission from the engine.
40 While the engine/transmission is removed,
check the mountings; renew them if they are
worn or damaged. Similarly, check the
condition of all coolant and vacuum hoses
and pipes (see Chapter 1); components that
are normally hidden can now be checked
properly, and should be renewed if there is
any doubt at all about their condition. Where
the vehicle is fitted with manual transmission,
take the opportunity to overhaul the clutch
components (see Chapter 6). It is regarded by
many as good working practice to renew the
clutch assembly as a matter of course,
whenever major engine overhaul work is
carried out. Check also the condition of all
components (such as the transmission oil
seals) disturbed on removal, and renew any
that are damaged or worn.
Refitting
41 Refitting is a reversal of removal, however
note the following additional points:
a) Refer to the applicable Chapters and Sections as for removal.
b) Fit new spring clips to the grooves in the
inboard end of the right- and left-hand
driveshaft joints. Lubricate the splines
with transmission oil prior to fitting.
c) Renew the exhaust flange gaskets when reconnecting the exhaust. Ensure that all
wires are routed clear of the exhaust
system, and that the heat shields are
securely and correctly fitted.
d) Ensure that all earth lead connections are
clean and securely made.
e) Tighten all nuts and bolts to the specified
torque.
f) Fit a new oil filter, and refill the engine and transmission with oil, with reference to
Chapter 1.
g) Refill the cooling system with reference to
Chapter 1.
h) Bleed the power steering system with reference to Chapter 10.
42 When engine and transmission refitting is
complete, refer to the procedures described
in Section 19 before restarting the engine.
6 Engine overhaul - preliminary information
It is much easier to dismantle and work on
the engine if it is mounted on a portable
engine stand. These stands can often be hired
from a tool hire shop. Before the engine is
mounted on a stand, the flywheel/driveplate
should be removed so that the stand bolts
can be tightened into the end of the cylinder
block/crankcase. If a stand is not available, it is possible to
dismantle the engine with it suitably supported on a sturdy, workbench or on the
floor. Be careful not to tip or drop the engine
when working without a stand.
If you intend to obtain a reconditioned
engine, all ancillaries must be removed first, to
be transferred to the replacement engine (just
as they will if you are doing a complete engine
overhaul yourself). These components include
the following:
a) Alternator/power steering pump and
mounting brackets.
b) DIS/E-DIS ignition coil unit (and mounting
bracket), distributor, HT leads and spark
plugs.
c) The thermostat and housing cover.
d) Carburettor/fuel injection system
components.
e) Inlet and exhaust manifolds.
f) Oil filter.
g) Fuel pump.
h) Engine mountings.
i) Flywheel/driveplate.
j) Water pump.
Note: When removing the external
components from the engine, pay close
attention to details that may be helpful or
important during refitting. Note the fitted
positions of gaskets, seals, washers, bolts and
other small items. If you are obtaining a “short” engine
(cylinder block/crankcase, crankshaft, pistons
and connecting rods all assembled), then the
cylinder head, timing chain/belt (together with
tensioner, tensioner and idler pulleys and
covers) sump and oil pump will have to be
removed also. If a complete overhaul is planned, the
engine can be dismantled in the order given
below, referring to Part A, B or C of this
Chapter unless otherwise stated.
a) Inlet and exhaust manifolds.
b) Timing chain/belt, tensioner and
sprockets.
c) Cylinder head.
d) Flywheel/driveplate.
e) Sump.
f) Oil pump.
g) Pistons (with connecting rods).
h) Crankshaft.
i) Camshaft and tappets (HCS engines).
7 Cylinder head - dismantling
4
Note:New and reconditioned cylinder heads
are available from the manufacturers, and from
engine overhaul specialists. Due to the fact
that some specialist tools are required for the
dismantling and inspection procedures, and
new components may not be readily available,
it may be more practical and economical for
the home mechanic to purchase a
reconditioned head, rather than to dismantle,
inspect and recondition the original head.
1 Remove the cylinder head as described in
Part A, B or C of this Chapter (as applicable).
2D•12 Engine removal and overhaul procedures
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6Extract each tappet in turn. Keep them in
order of fitting by inserting them in a card with
eight holes in it, numbered 1 to 8 (from the
timing chain end of the engine). A valve
grinding suction tool will be found to be useful
for the removal of tappets (see illustration).
Inspection
7Examine the camshaft bearing journals and
lobes for damage or excessive wear. If
evident, the camshaft must be renewed.
8 Examine the camshaft bearing internal
surfaces for signs of damage or excessive
wear. If evident, the bearings must be
renewed by a Ford dealer.
9 If not carried out on removal, check the
camshaft endfloat as described in para-
graph 3. If the endfloat is exceeds the
specified tolerance, renew the thrust plate.
10 It is seldom that the tappets wear
excessively in their bores, but it is likely that
after a high mileage, the cam lobe contact
surfaces will show signs of depression or
grooving.
11 Where this condition is evident, renew the
tappets. Grinding out the grooves and wear
marks will reduce the thickness of the surface
hardening, and will accelerate further wear.
Refitting
12 To refit the tappets and the camshaft, it is
essential that the crankcase is inverted.
13 Lubricate their bores and the tappets.
Insert each tappet fully into its original bore in
the cylinder block.
14 Lubricate the camshaft bearings,
camshaft and thrust plate, then insert the
camshaft into the crankcase from the timing
case end.
15 Fit the thrust plate and tighten the
retaining bolts to the specified torque setting
(see illustration) . Check that the camshaft is
able to rotate freely, and that the endfloat is as
specified.
11 Piston/connecting rod
assemblies - removal and
inspection
4
Removal
HCS engines
1 Refer to Part A of this Chapter and remove
the cylinder head and sump, then remove the
oil pick-up pipe and strainer.
2 Temporarily refit the crankshaft pulley, so
that the crankshaft can be rotated. Check that
the connecting rod big-end caps have
adjacent matching numbers facing towards
the camshaft side of the engine. If no marks
can be seen, make your own before disturbing
any of the components, so that you can be
certain of refitting each piston/connecting rod
assembly the right way round, to its correct
(original) bore, with the cap also the right way
round.
CVH and PTE engines
3 Refer to Part B of this Chapter and remove
the cylinder head and sump, then remove the
oil pick-up pipe and strainer.
4 Temporarily refit the crankshaft pulley, so
that the crankshaft can be rotated. Check that
the connecting rods have identification
numbers - these should be found on the
exhaust side of the big-ends. No 1 assembly
is at the timing belt end of the engine. If no
marks can be seen, make your own before
disturbing any of the components, so that you
can be certain of refitting each piston/
connecting rod assembly the right way round,
to its correct (original) bore, with the cap also
the right way round.
Zetec engines
5 Refer to Part C of this Chapter and remove
the cylinder head and sump.
6 Undo the screws securing the oil pump
pick-up/strainer pipe to the pump, then
unscrew the four nuts, and withdraw the oil
pump pick-up/strainer pipe and oil baffle (see
illustration) .
7 Temporarily refit the crankshaft pulley, so
that the crankshaft can be rotated. Note that
each piston/connecting rod assembly can be
identified by its cylinder number (counting
from the timing belt end of the engine) etched
into the flat-machined surface of both the
connecting rod and its cap. The numbers are
visible from the front (exhaust side) of the
engine (see illustration) . Furthermore, each piston has an arrow stamped into its crown,
pointing towards the timing belt end of the
engine. If no marks can be seen, make your
own before disturbing any of the components,
so that you can be certain of refitting each
piston/connecting rod assembly the right way
round, to its correct (original) bore, with the
cap also the right way round.
All engines
8
Use your fingernail to feel if a ridge has
formed at the upper limit of ring travel (about a
quarter-inch down from the top of each
cylinder). If carbon deposits or cylinder wear
have produced ridges, they must be
completely removed with a special tool.
Follow the tool manufacturer’s instructions
provided. Failure to remove the ridges before
attempting to remove the piston/connecting
rod assemblies may result in piston ring
breakage.
9 Slacken each of the big-end bearing cap
bolts half a turn at a time, until they can be
removed by hand. Remove the No 1 cap and
bearing shell. Don’t drop the shell out of the
cap.
10 Remove the upper bearing shell, and push
the connecting rod/piston assembly out
through the top of the engine. Use a wooden
hammer handle to push on the connecting
rod’s bearing recess. If resistance is felt,
double- check that all of the ridge was
removed from the cylinder.
11 Repeat the procedure for the remaining
cylinders.
Engine removal and overhaul procedures 2D•17
10.15 Refitting the camshaft thrust plate10.6 Tappet withdrawal using a valve grinding tool suction cup
11.7 Each connecting rod and big-endbearing cap will have a flat-machined
surface with the cylinder number etched in it11.6 Removing the oil baffle to provide access to crankshaft and bearings
2D
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engine is dismantled for full overhaul (see
illustrations) .
2 Remove all oil gallery plugs (where fitted).
The plugs are usually very tight - they may
have to be drilled out, and the holes re-
tapped. Use new plugs when the engine is
reassembled. Drill a small hole in the centre of
each core plug, and pull them out with a car
bodywork dent puller.
Caution: The core plugs (also known as
freeze or soft plugs) may be difficult or
impossible to retrieve if they are driven
into the block coolant passages.
3 If any of the castings are extremely dirty, all
should be steam-cleaned.
4 After the castings are returned from steam-
cleaning, clean all oil holes and oil galleries
one more time. Flush all internal passages
with warm water until the water runs clear,
then dry thoroughly, and apply a light film of
oil to all machined surfaces, to prevent
rusting. If you have access to compressed air,
use it to speed the drying process, and to
blow out all the oil holes and galleries.
Warning: Wear eye protection
when using compressed air!
5 If the castings are not very dirty, you can do
an adequate cleaning job with hot soapy
water (as hot as you can stand!) and a stiff
brush. Take plenty of time, and do a thorough
job. Regardless of the cleaning method used,
be sure to clean all oil holes and galleries very thoroughly, and to dry all components
completely; protect the machined surfaces as
described above, to prevent rusting.
6
All threaded holes must be clean and dry,
to ensure accurate torque readings during
reassembly; now is also a good time to clean
and check the threads of all principal bolts -
however, note that some, such as the cylinder
head and flywheel/driveplate bolts, are to be
renewed as a matter of course whenever they
are disturbed. Run the proper-size tap into
each of the holes, to remove rust, corrosion,
thread sealant or sludge, and to restore
damaged threads (see illustration). If
possible, use compressed air to clear the
holes of debris produced by this operation; a
good alternative is to inject aerosol-applied
water-dispersant lubricant into each hole,
using the long spout usually supplied. Warning: Wear eye protection
when cleaning out these holes
in this way, and be sure to dry
out any excess liquid left in the
holes.
7 When all inspection and repair procedures
are complete (see below) and the block is
ready for reassembly, apply suitable sealant
to the new oil gallery plugs, and insert them
into the holes in the block. Tighten them
securely. After coating the sealing surfaces of
the new core plugs with suitable sealant,
install them in the cylinder block/crankcase.
Make sure they are driven in straight and seated properly, or leakage could result.
Special tools are available for this purpose,
but a large socket with an outside diameter
that will just slip into the core plug, used with
an extension and hammer, will work just as
well.
8
On Zetec engines, refit the blanking plugs
or (new) piston-cooling oil jets (as applicable),
tightening their Torx screws to the torque
wrench setting specified. On all engines, refit
all other external components removed,
referring to the relevant Chapter of this
manual for further details where required.
Refit the main bearing caps, and tighten the
bolts finger-tight.
9 If the engine is not going to be reassembled
right away, cover it with a large plastic bag to
keep it clean; protect the machined surfaces
as described above, to prevent rusting.
Inspection
10 Visually check the castings for cracks and
corrosion. Look for stripped threads in the
threaded holes. If there has been any history
of internal coolant leakage, it may be
worthwhile having an engine overhaul
specialist check the cylinder block/crankcase
for cracks with special equipment. If defects
are found, have them repaired, if possible, or
renew the assembly.
11 Check each cylinder bore for scuffing and
scoring.
12 The cylinder bores must be measured
with all the crankshaft main bearing caps
bolted in place (without the crankshaft and
bearing shells), and tightened to the specified
torque wrench settings. Measure the diameter
of each cylinder at the top (just under the
ridge area), centre and bottom of the cylinder
bore, parallel to the crankshaft axis. Next,
measure each cylinder’s diameter at the same
three locations across the crankshaft axis
(see illustration) . Note the measurements
obtained.
13 Measure the piston diameter at right-
angles to the gudgeon pin axis, just above the
bottom of the skirt; again, note the results
(see illustration) .
14 If it is wished to obtain the piston-to-bore
clearance, measure the bore and piston skirt
as described above, and subtract the skirt
2D•20 Engine removal and overhaul procedures
13.13 Measure the piston skirt diameter at
right-angles to the gudgeon pin axis, just
above the base of the skirt13.12 Measure the diameter of each
cylinder just under the wear ridge (A), at
the centre (B) and at the bottom (C)
13.6 All bolt holes in the block should be cleaned and restored with a tap13.1b . . . but note that piston-cooling oiljets (where fitted) must be renewed
whenever engine is overhauled - Zetec engines13.1a Unbolt blanking plugs (where fitted)to clean out oilways . . .
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