ECU FORD GRANADA 1985 Service User Guide

Instruments and electrical
equipment
1Check the operation of all instruments and
electrical equipment.
2Make sure that all instruments read
correctly, and switch on all electrical
equipment in turn to check that it functions
properly.
Steering and suspension
3Check for any abnormalities in the steering,
suspension, handling or road “feel”.
4Drive the vehicle, and check that there are
no unusual vibrations or noises.
5Check that the steering feels positive, with
no excessive “sloppiness”, or roughness, and
check for any suspension noises when
cornering, or when driving over bumps.
Drivetrain
6Check the performance of the engine,
clutch, transmission and driveshafts.
7Listen for any unusual noises from the
engine, clutch and transmission.
8Make sure that the engine runs smoothly
when idling, and that there is no hesitation
when accelerating.
9Where applicable, check that the clutch
action is smooth and progressive, that the
drive is taken up smoothly, and that the pedal
travel is not excessive. Also listen for any
noises when the clutch pedal is depressed.
10Check that all gears can be engaged
smoothly, without noise, and that the gear
lever action is not abnormally vague or
“notchy”.
Check the operation and
performance of the braking system
11Make sure that the vehicle does not pull to
one side when braking, and that the wheels do
not lock prematurely when braking hard.
12Check that there is no vibration through
the steering when braking.
13Check that the handbrake operates
correctly, without excessive movement of the
lever, and that it holds the vehicle stationary
on a slope.
14Test the operation of the brake servo unit
as follows. With the engine off, depress the
footbrake four or five times to exhaust the
vacuum. Start the engine, holding the brake
pedal depressed. As the engine starts, there
should be a noticeable “give” in the brake
pedal as vacuum builds up. Allow the engine
to run for at least two minutes, and then
switch it off. If the brake pedal is depressed
now, it should be possible to detect a hiss
from the servo as the pedal is depressed. After
about four or five applications, no further
hissing should be heard, and the pedal should
feel considerably firmer.1The power steering fluid dipstick is
incorporated in the reservoir filler cap. The
reservoir is mounted on the pump. Observe
scrupulous cleanliness when checking the
level or topping-up.
2The system should be at operating
temperature and the engine switched off.
Wipe clean around the reservoir filler cap.
Unscrew the cap, withdraw the dipstick and
wipe it with a clean lint-free rag. Reinsert the
dipstick, screw the cap home, then unscrew it
again and read the level on the dipstick. It
should be up to the MAX or upper HOT mark
(depending on the dipstick markings) (see
illustration).
3Top-up if necessary with clean fluid of the
specified type. Check for leaks if topping-up is
frequently required.
4If the level is checked cold, use the MIN or
FULL COLD mark on the dipstick for reference.
Recheck the level at operating temperature.
On carburettor models, remove the air
cleaner cover and check that the automatic
choke is opening fully when the engine is hot.
Run the engine until it reaches normal
operating temperature. Stop the engine and
immediately restart it. If the engine fails to start
cleanly and immediately then refer to either
Chapters 4 or 5 and check fuel feed
adjustments.
37Hot starting check
36Automatic choke check
35Power steering fluid level
check34Road test
Carburettor models
SOHC engines
1Remove the screws from the air cleaner
cover(see illustration).
2Release the spring clips (when fitted), then
lift off the cover (see illustration).
3Lift out the air cleaner element(see
illustration). Wipe clean inside the air cleaner
housing, but be careful not to sweep dirt into
the carburettor throat.
4Where it is necessary to remove the air
cleaner body for cleaning or repair, first
disconnect the cold air inlet trunking from the
spout (see illustration). 5Disconnect the vacuum pipe from the inlet
manifold, and the hot air trunking from the
spout or exhaust manifold shroud(see
illustration). 6Remove the remaining screw which secures
the air cleaner to the valve cover, then lift off
the air cleaner.
7Refit by reversing the removal operations.
38Air cleaner filter element
renewal
1•16Every 24 000 miles or 2 years
35.2 Removing the power steering fluid
dipstick
38.2 Releasing an air cleaner cover clip
(carburettor model)38.1 Removing an air cleaner cover screw
(carburettor model)
Every 24 000 miles or 2 years
procarmanuals.com

DOHC engine
8Proceed as described above whilst noting
that the camshaft cover breather hose must
be disconnected before the air cleaner can be
removed.
Fuel-injection models
SOHC and V6 engines
9Release the four spring clips which secure
the air cleaner cover(see illustration).
10Lift off the cover and move it aside. It is
attached to the vane airflow meter(s): be
careful not to strain the air trunking or meter
wiring. To remove the cover completely,
disconnect the meter(s) or unbolt the cover
(see illustration).
11Remove the air cleaner element, notingwhich way up it is fitted (see illustration).
Wipe clean inside the air cleaner body.
12Where it is necessary to remove the air
cleaner body for cleaning or repair, remove the
three securing nuts which are accessible from
inside the left-hand wheel arch. Disengage the
body from the air pick-up hose and remove it.
13Refit by reversing the removal operations.DOHC engine
14To renewthe element, disconnect the
battery negative lead.
15Disconnect the wiring plug from the idle
speed control valve at the front of the plenum
chamber.
16Loosen the clamp, and detach the air inlet
hose from the air inlet tubing.
17Unscrew the securing nut, and release theair inlet tube from the bracket on the engine
compartment front panel (see illustration).
18Release the air cleaner lid securing clips,
then lift away the air inlet tube, plenum
chamber and air cleaner lid as an assembly,
disconnecting the breather hose from the air
inlet tube.
19Lift out the air cleaner element, then wipe
the inside of the air cleaner lid and casing
clean (see illustration).
20Fit the new element with the sealing lip
uppermost.
21Further refitting is a reversal of removal.
22To remove and refit the air cleaner
housing, refer to paragraph 12.
23Refitting is the reverse of the removal
procedure.
1Before disturbing any part of the ignition
system, disconnect the battery negative lead.
2Identify and clearly mark all HT leads before
disconnecting them from the spark plugs.
All engines except DOHC
3On V6 models, remove the screening can lid
(see illustration).
4Remove the coil-to-distributor HT lead
(sometimes called the king lead) by
disconnecting it from the coil tower and the
distributor cap.
5Disconnect the other HT leads from the
39Ignition system component
check
1•17
1
Every 24 000 miles or 2 years
38.4 Disconnecting the air cleaner cold air
inlet trunking (carburettor model)38.5 Air cleaner hot air trunking and
manifold shroud (carburettor model)38.3 Removing the air cleaner element
(carburettor model)
38.17 Air intake tube retaining nut
(fuel-injection DOHC)38.19 Removing the air cleaner element
(fuel-injection DOHC)38.11 Removing the air cleaner element
(fuel-injection SOHC and V6)
38.9 Air cleaner cover spring clip
(fuel-injection SOHC and V6)38.10 Airflow meter to cover bolts
(arrowed) (fuel-injection SOHC and V6)
procarmanuals.com

distributor cap, making a sketch if necessary
so that they can be reconnected to the same
terminals. Remove the leads.
6On V6 models, remove the distributor
screening can (see illustration).
7Release the two clips or screws which
secure the distributor cap. Remove the cap
(see illustration).
8Note that if the distributor cap is secured by
clips, the engine must not be cranked with the
cap removed. This is because it is possible for
a spring clip to foul the rotating parts of the
distributor and cause damage.
9Remove the rotor arm. It may simply pull off,
or it may be secured by two screws (see
illustration). The rotor arm tips may be coated
with silicone grease - if so, do not rub it off.
10Clean the HT leads and distributor capwith a dry cloth. Scrape any corrosion or other
deposits from the connectors and terminals.
Also clean the coil tower.
11Renew the HT leads if they are cracked,
burnt or otherwise damaged. If a multi-meter
is available, measure the resistance of the
leads. The desired value is given in the
Specifications of Chapter 5.
12Renew the distributor cap if it is cracked
or badly burnt inside, or if there is evidence of
“tracking” (black lines marking the path of HT
leakage). If there is a carbon brush at the
centre of the cap, make sure that it moves
freely, and is not excessively worn.
13Clean the metal track of the rotor arm with
abrasive paper (but see paragraph 9 first).
Renew the arm if it is cracked or badly burnt.
14Commence reassembly by fitting the rotorarm to the distributor. It is positively located by
a notch or shaped pegs so it cannot be fitted
the wrong way round. Tighten the securing
screws, when applicable.
15Refit the distributor cap and secure it with
the clips or screws.
16On V6 models, refit the screening can.
17Reconnect the HT leads to the distributor
cap, making sure that they are correctly fitted.
The No 1 connector on the cap is marked (see
illustration).
18On V6 models, refit the screening can lid.
19Reconnect the HT leads to the spark plugs
and coil.
20Reconnect the battery and run the engine.
DOHC engines
21Unclip the lower section of the distributor
shield from the upper section, then unscrew
the two securing nuts, and withdraw the upper
section of the shield from the studs on the
upper timing chain cover (see illustrations).
22Disconnect the HT leads from the spark
plugs by pulling on the connectors, not the
leads. Similarly, disconnect the HT lead from
the coil, and release it from the clip on the
timing chain cover.
23Using a suitable Torx key or socket,
unscrew the two distributor cap securing
screws, then lift off the cap.
24The rotor arm is a push-fit on the end of
the rotor shaft (see illustration).
25If desired, the rotor housing can be pulled
from the timing chain cover.
26Inspect all components as described in
1•18Every 24 000 miles or 2 years
39.6 Removing a distributor screening can
- V6 engine39.7 Removing a distributor cap39.3 Removing a distributor can screening
lid - V6 engine
39.21b . . . and the upper section of the
distributor shield - DOHC engine39.24 Removing the distributor cap and
rotor arm - DOHC engine39.21a Unclipping the lower section . . .
39.9 Removing a rotor arm39.17 HT lead identification at distributor
cap - V6 engine
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The cylinder head is of crossflow design
with the inlet manifold mounted on the left-
hand side and the exhaust manifold mounted
on the right-hand side.
Lubrication is by means of a bi-rotor pump
which draws oil through a strainer located
inside the sump, and forces it through a full-
flow filter into the engine oil galleries where it
is distributed to the crankshaft, camshaft and
auxiliary shaft. The big-end bearings are
supplied with oil via internal drillings in the
crankshaft.The undersides of the pistons are
supplied with oil from drillings in the big-ends.
The distributor shaft is intermittently supplied
with oil from the drilled auxiliary shaft. The
camshaft and cam followers are supplied with
oil via a drilled spray tube from the centre
camshaft bearing.
A semi-closed crankcase ventilation system
is employed whereby piston blow-by gases
are drawn into the inlet manifold via an oil
separator and on carburettor models a control
valve.
The following operations can be carried out
without removing the engine, although the
work may be easier and quicker with the
engine removed:
a)Removal and refitting of the cylinder head
b)Removal and refitting of the camshaft
(after removing the cylinder head)
c)Removal and refitting of the timing belt
and sprockets
d)Removal and refitting of the sump and oil
pump
e)Removal and refitting of the pistons,
connecting rods and big-end bearings
f)Renewal of the engine mountings
g)Renewal of the crankshaft oil seals
h)Removal and refitting of the auxiliary shaft
j)Removal and refitting of the flywheel
The engine must be removed from the
vehicle for the following operations:
a)Renewal of the crankshaft main bearings
b)Removal and refitting of the crankshaft
The engine may be lifted out either on its
own or together with the gearbox. Unless work
is also necessary on the gearbox it is
recommended that the engine is removed on
its own. Where automatic transmission is
fitted, the engine should be removed on its
own owing to the additional weight. If the
engine and gearbox are removed together,
they will have to be tilted at a very steep angle;
make sure that the range of the lifting tackle is
adequate.1Disconnect the battery negative lead.
2Remove the bonnet.
3On carburettor models, remove the air
cleaner. On fuel-injection models, remove the
air cleaner cover, vane airflow meter and air
inlet trunking.
4If a splash guard is fitted, remove it.
5Release the securing clips and bolts and
remove the upper half of the fan shroud. On
carburettor models remove the lower half of
the shroud too.
6Drain the cooling system.
7Disconnect the radiator top and bottom
hoses from the thermostat housing and water
pump. Disconnect the top hose spur from the
expansion tank and unclip it.
8Disconnect the heater hoses from the water
pump and from the inlet manifold or automatic
choke housing. Unclip the hoses.
9On models with power steering, remove the
steering pump.
10Disconnect the vacuum pipe(s) from the
inlet manifold, labelling them if there is any
possibility of confusion.
11Disconnect the following wiring, as
applicable:
a)Alternator
b)Temperature gauge sender
c)Engine management temperature sensor
d)Distributor
e)Oil pressure switch
f)Automatic choke and thermo-switch
g)Carburettor stepper motor
h)Fuel-injection system sub-harness
j)Inlet manifold heater
12Disconnect the HT lead from the coil.
13If an oil level sensor is fitted, remove it
(see illustration).
14Unbolt the throttle cable bracket,
disconnect the inner cable and move the cable
and bracket aside. Also disconnect the
downshift cable on automatic transmission
models.
15On carburettor models, disconnect the
fuel lines from the fuel pump (mechanised
type) and from the carburettor. Be prepared
for fuel spillage.
16On fuel-injection models, disconnect the
fuel supply union from the injector rail, and the
fuel return pipe from the fuel pressureregulator. Be prepared for fuel spillage, and
for some spray if the supply side is still
under pressure.
17Unbolt the exhaust downpipe from the
manifold.
18On models with air conditioning, unbolt
the compressor and move it aside without
straining the flexible hoses.
19Remove the starter motor.
20Although not specified by the
manufacturers, the author advises that either
the radiator or the cooling fan be removed, to
reduce the risk of damage.
21Attach the lifting tackle to the two lifting
eyes on the engine, so that when suspended
the engine will be roughly horizontal. Take the
weight of the engine.
22Remove the single nut on each side which
secures each engine bearer to its mounting.
23Working under the vehicle, remove the
bracing strap which connects the engine and
transmission. Unbolt the adapter plate from
the bottom of the transmission bellhousing.
24On automatic transmission models, unbolt
the torque converter from the driveplate.
25Remove the engine-to-bellhousing bolts.
Note the location of the battery earth strap.
26Support the transmission, preferably with
a trolley jack.
27Check that nothing has been overlooked,
then raise the engine and draw it forwards
clear of the transmission input shaft. Do not
allow the weight of the engine to hang on the
shaft, and do not lift the transmission by it.
28On automatic transmission models, make
sure that the torque converter stays engaged
with the oil pump in the transmission as the
engine is withdrawn,
29Lift the engine out of the engine bay and
take it to the bench.
1Engine removal with automatic transmission
is not recommended.
2Proceed as in the previous Section,
paragraphs 1 to 18.
3Disconnect the wiring from the starter
motor, and release the battery earth cable
from its bellhousing bolt.
4Remove the radiator.
5Remove the propeller shaft.
6Disconnect and unclip the reversing light
switch and speedometer sender unit wiring.
7Disconnect the clutch cable.
8Unbolt the anti-roll bar mounting brackets
and lower the anti-roll bar as far as possible.
9From inside the vehicle remove the gear
lever.
10Drain the engine oil.
11Unhook the exhaust system from its
mounting on the gearbox crossmember. Either
support the system or remove it completely.
12Support the gearbox, preferably with a
trolley jack, then unbolt and remove the
gearbox crossmember. Note the earth strap (if
fitted) under one of the crossmember bolts.
13Attach lifting tackle to the two lifting eyes
on the engine so that when suspended it will
be at an angle of approximately 45°.
6Engine - removal with manual
gearbox
5Engine - removal leaving
gearbox/transmission in vehicle
4Methods of engine removal
3Major operations requiring
engine removal
2Major operations possible with
the engine in the vehicle
SOHCengines 2A•5
2A
5.13 Oil level sensor
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the tensioner to release the load on the belt
and slip the belt off the camshaft sprocket. Do
not kink the belt, or get oil or grease on it.
5Remove the ten bolts which secure the
rocker cover, noting the location of the
different shapes of reinforcing plates. Remove
the cover and gasket.
6Using a Torx key, slacken the cylinder head
bolts half a turn at a time in the reverse of the
tightening sequence.7With the bolts removed, lift the cylinder
head from the block. If it is stuck, tap it with a
wooden or plastic mallet to free it. Do not
lever between the head and block, or the
mating surfaces may be damaged. Do not
crank the engine to free the head, as the
pistons may contact the valves.
8Place the cylinder head on a couple of
wooden blocks so that the protruding valves
are not damaged.
1Remove the cylinder head as described in
the previous Section.
2Hold the camshaft with a spanner on the lug
behind the sixth cam. Unscrew and remove
the camshaft sprocket bolt (see illustration).3Remove the camshaft sprocket using a
puller if necessary. Remove the backplate
(see illustration).
4Unscrew the bolts and remove the camshaft
oil supply tube (see illustration).
5Note how the cam follower retaining spring
clips are fitted, then unhook them from the
cam followers.
6If the special tool 21-005-A is available,
compress the valve springs in turn and remove
the cam followers, keeping them identified for
location. Alternatively loosen the locknuts and
back off the ball-pins until the cam followers
can be removed (see illustration).
7Unscrew the bolts and remove the camshaft
thrust plate (see illustration).
8Carefully withdraw the camshaft from the
rear of the cylinder head, taking care not to
damage the bearings (see illustration).
9Prise the oil seal from the front bearing (see
illustration).11Camshaft - removal
SOHCengines 2A•7
2A
10.3a Alignment of crankshaft and
camshaft timing marks, and distributor
rotor position, for No 1 firing
10.3b Camshaft sprocket pointer aligned
with the indentation on the cylinder head
11.6 Removing the cam followers
11.2 Removing the camshaft sprocket bolt
and sprocket
11.3 Removing the camshaft sprocket
backplate11.4 Removing the camshaft oil supply
tube
11.9 Prise out the camshaft bearing oil seal11.7 Removing the camshaft thrust plate11.8 Removing the camshaft
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1Remove the camshaft as described in the
previous Section. (If tool 21-005-A is available,
leave the camshaft in place until the valves
have been removed).
2Using a valve spring compressor, compress
each valve spring in turn until the split collets
can be removed. Release the compressor and
remove the cap and spring, keeping them
identified for location (see illustrations).
3Remove each valve from the cylinder head,
but identify them for location (see illustration).
4Prise the valve stem oil seals from the tops
of the valve guides (see illustration).
5If necessary unscrew the cam follower ball-
pins from the cylinder head, keeping them
identified for location.
6If necessary unscrew the bolts and remove
the timing belt tensioner.
7Remove the thermostat and housing.
8Remove the temperature gauge sender unit.
9Remove the manifold studs if wished by
locking two nuts onto each stud in turn and
unscrewing it.
1If the engine is still in the vehicle, carry out
the following preliminary operations:
a)Disconnect the battery negative lead
b)Remove the radiator and disconnect the
hose from the thermostat housing
c)Remove the accessory drivebelt(s)
2Unscrew the bolts and withdraw the timing
cover. Note the location of the cover in the
special bolt.
3Using a socket on the crankshaft pulley bolt,
turn the engine clockwise until the TDC (top
dead centre) notch on the pulley is alignedwith the pointer on the crankshaft front oil seal
housing, and the pointer on the camshaft
sprocket is aligned with the indentation on the
cylinder head. Note the position of the
distributor rotor arm. Mark the contact end of
the rotor in relation to the rim of the distributor
body.
4Slacken the timing belt tensioner retaining
bolts then pivot the tensioner pulley away from
the belt, to obtain maximum drivebelt free play
(see illustration). Hold the tensioner pulley in
this position and securely retighten the
retaining bolts.
5Mark the running direction of the belt if it is
to be re-used, then slip it off the camshaft
sprocket.
6Slacken the crankshaft pulley bolt. Prevent
the crankshaft from turning by engaging 5thgear (manual gearbox), or by removing the
starter motor and jamming the ring gear teeth.
Alternatively, if the pulley has peripheral bolt
holes, screw in a couple of bolts and use a
lever between them to jam it. Do not allow the
crankshaft to turn very far, or piston/valve
contact may occur.
7Remove the bolt and washer and withdraw
the pulley. If the pulley will not come off easily,
refit the bolt part way and use a puller (see
illustration). A puller will almost certainly be
required on fuel-injection models.
8Remove the guide washer from in front of
the crankshaft sprocket, then remove the
timing belt (see illustration). Do not kink it or
get oil on it if it is to be re-used.
9Remove the crankshaft sprocket using a
puller if necessary (see illustration).
13Timing belt and sprockets -
removal
12Cylinder head - dismantling
2A•8SOHCengines
12.2a Compressing a valve spring
13.4 Timing belt tensioner bolts (arrowed)13.7 Using a puller to remove the
crankshaft pulley
12.4 Removing a valve stem oil seal
13.8 Remove the guide washer from in
front of the crankshaft sprocket
12.2b Removing a valve spring and cap
12.3 Removing a valve
If the caps are difficult to
remove do not continue to
tighten the compressor, but
gently tap the top of the tool
with a hammer. Always ensure that the
compressor is held firmly over the cap.
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10Unscrew the auxiliary shaft sprocket bolt
while holding the sprocket stationary with a
screwdriver inserted through one of the holes.
11Remove the auxiliary shaft sprocket using
a puller if necessary (see illustration).
12Unscrew the camshaft sprocket bolt while
holding the sprocket stationary with a
screwdriver engaged in one of the grooves.
Alternatively remove the rocker cover and use
a spanner on the camshaft lug.
13Remove the camshaft sprocket using a
puller if necessary, then remove the backplate.
Note that the oil seal can be removed using a
special removal tool or by using self-tapping
screws and a pair of grips.
1Remove the timing belt and the auxiliary
shaft sprocket (only) (Section 13).
2Remove the distributor.
3Remove the fuel pump and pushrod (not
applicable to models with an electric pump).
4Unscrew the bolts and remove the auxiliary
shaft front cover (see illustration).
5Unscrew the cross-head screws, using an
impact screwdriver if necessary, remove the
thrust plate and withdraw the auxiliary shaft
from the block (see illustrations).
6Cut the front cover gasket along the top of
the crankshaft front oil seal housing and
scrape off the gasket.
1If the engine is still in the vehicle, remove
the clutch or automatic transmission.
2Prevent the flywheel or driveplate rotating
by jamming the ring gear teeth, or by bolting a
strap to it.
3Remove the securing bolts and withdraw
the flywheel or driveplate. Do not drop it, it is
heavy.
4The engine adapter plate (backplate) may
now be withdrawn from the dowels if required
(see illustration).1If the engine is out of the vehicle, start at
paragraph 11. If possible, remove the sump
without inverting the engine, so that any
sludge in the bottom of the sump stays there.
2Disconnect the battery negative lead.
3Raise and support the front of the vehicle.
4Remove the splash guard, if fitted, and drain
the engine oil.
5Remove the starter motor.
6Remove the two nuts which secure the
engine bearers to the engine mountings.
7Release the steering shaft universal joint
strap bolt to allow for subsequent movement.
8Free the brake hydraulic pipes from the
clips on the front crossmember.9Support the engine, either with conventional
lifting tackle or with a bar positioned across
the engine bay and resting on two wooden
blocks drilled to fit securely on the suspension
turrets. Make sure the support arrangements
are satisfactory, as you will be working
underneath the suspended engine.
10Take the weight of the engine. Place a jack
under the front crossmember, remove the
crossmember mounting bolts and carefully
lower the jack. Only lower the crossmember
far enough to permit removal of the sump.
11Remove the 23 bolts retaining the sump.
12Remove the sump from the cylinder block
(see illustration). If it is stuck, hit it with a soft-
faced mallet, or prise it sideways (notbetween
the mating faces) with a large screwdriver or
bar.
13Recover the gaskets and sealing strips.
16Sump - removal
15Flywheel/driveplate and
adapter plate - removal
14Auxiliary shaft - removal
SOHCengines 2A•9
2A
13.9 Removing the crankshaft sprocket13.11 Removing the auxiliary shaft
sprocket14.4 Removing the auxiliary shaft front
cover
14.5b Removing the auxiliary shaft14.5a Removing the auxiliary shaft thrust
plate
15.4 Removing the engine adaptor plate
(backplate)16.12 Removing the sump
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1Remove the timing belt and the crankshaft
sprocket (only).
2If an oil seal removal tool is available. the oil
seal can be removed at this stage. It may also
be possible to remove the oil seal by drilling
the outer face and using self-tapping screws
and a pair of grips.
3If the oil seal cannot be removed as
described in paragraph 2, remove the sump.
Also remove the auxiliary shaft sprocket.
Unbolt the oil seal housing and auxiliary shaft
front cover and remove the gasket. The oil seal
can then be driven out from the inside (see
illustrations).
4Clean the oil seal seating, then drive in a
new seal using metal tubing or a suitable
socket (see illustration). Make sure that thesealing lip faces into the engine, and lightly oil
the lip.
5If applicable fit the oil seal housing and
auxiliary shaft front cover to the block together
with a new gasket and tighten the bolts. Make
sure that the bottom face of the housing is
aligned with the bottom face of the block (see
illustrations). Fit the sump.
6Refit the timing belt and sprockets.
1Remove the flywheel or driveplate and the
engine adapter plate (backplate).
2Using a special removal tool extract the oil
seal (see illustration).However it may be
possible to remove the oil seal by drilling the
outer face and using self-tapping screws and
a pair of grips.3Clean the oil seal seating, then drive in a
new seal using a suitable metal tube. Make
sure that the sealing lip faces into the engine,
and lightly oil the lip.
4Refit the adapter plate and the
flywheel/driveplate.
1Remove the sump.
2Unscrew the bolt securing the pick-up tube
and strainer to the block (see illustration).
3Using a special splined key, unscrew the
bolts and withdraw the oil pump and strainer
(see illustration).
4Withdraw the hexagon shaped driveshaft
which engages the bottom of the distributor,
noting which way round it is fitted (see
illustration).
19Oil pump - removal
18Crankshaft rear oil seal -
renewal
17Crankshaft front oil seal -
renewal
2A•10SOHCengines
17.3a Removing the crankshaft front oil
seal housing
19.2 Unbolting the oil pump pick-up
strainer from the block19.3 Removing the splined bolts which
secure the oil pump19.4 Removing the oil pump driveshaft
18.2 Using an oil seal removal tool to
extract the crankshaft rear oil seal
17.3b Driving the oil seal out of the housing
17.5a Oil seal housing and auxiliary shaft
cover gasket in position17.5b Checking the alignment of the front
oil seal housing
17.4 Using a socket and a hammer to seat
the new seal
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See Chapter 1, Section 8.
1Remove the sump and cylinder head.
2Check the big-end caps for identification
marks and if necessary use a centre-punch to
identify the caps and connecting rods (see
illustration).
3Turn the crankshaft so that No 1 crankpin is
at its lowest point, then unscrew the nuts and
tap off the cap. Keep the bearing shells in the
cap and connecting rod.4Using the handle of a hammer, push the
piston and connecting rod up the bore and
withdraw from the top of the cylinder block.
Loosely refit the cap to the connecting rod
(see illustration).
5Repeat the procedure in paragraphs 3 and 4
on the No 4 piston and connecting rod, then
turn the crankshaft through half a turn and
repeat the procedure on Nos 2 and 3 pistons
and connecting rods.
1With the engine removed from the vehicle,
remove the pistons and connecting rods as
described in the previous Section. (In fact it is
not necessary to push the pistons out of the
bores if no work is to be done on them.)2Remove the timing belt and crankshaft
sprocket, and the flywheel or driveplate. Also
remove the auxiliary shaft sprocket.
3Unbolt the crankshaft front oil seal housing
and auxiliary shaft front cover and remove the
gasket.
4Remove the oil pump and strainer.
5Check the main bearing caps for
identification marks and if necessary use a
centre-punch to identify them (see
illustration).
6Before removing the crankshaft check that
the endfloat is within the specified limits by
inserting a feeler blade between the centre
crankshaft web and the thrustwashers (see
illustration). This will indicate whether new
thrustwashers are required or not.
7Unscrew the bolts and tap off the main
bearing caps complete with bearing shells
(see illustration). If the thrustwashers are to
be re-used identify them for location.
8Lift the crankshaft from the crankcase and
remove the rear oil seal. Remove the
remaining thrustwashers (see illustrations).
9Extract the bearing shells keeping them
identified for location (see illustration).
1Unscrew the two nuts which secure the
engine bearers to the tops of the mountings.
Recover the washers(see illustration).
2Raise and support the front of the vehicle.
Remove the two nuts which secure the
23Engine mountings - renewal
22Crankshaft and main
bearings - removal
21Pistons and connecting rods
- removal
20Oil filter - renewal
SOHCengines 2A•11
2A
21.2 Big-end cap and connecting rod
identification numbers21.4 Piston, connecting rod, cap and
bearing shells22.5 Main bearing cap identification marks
The arrow points to the front of the engine
22.8a Removing the crankshaft
22.6 Checking crankshaft endfloat
22.8b Removing a thrustwasher from the
centre main bearing
22.7 Removing the rear main bearing cap
22.9 Removing the centre main bearing
shell
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(1.0 in) either side of the spreader gap. Fit the
tapered lower compression ring with the TOP
mark towards the top of the piston and the gap
150°from the spreader gap, then fit the upper
compression ring with the gap 150°on the
other side of the spreader gap. Note that the
compression rings are coated with a
molybdenum skin which must not be damaged.
7Note that the compression rings are made
of cast iron, and will snap if expanded too far.
Examine the surface of the camshaft
journals and lobes and the cam followers for
wear. If excessive, considerable noise would
have been noticed from the top of the engine
and a new camshaft and followers must be
fitted.
Check the camshaft bearings for wear and if
necessary have them renewed by a Ford
garage.
Check the camshaft lubrication tube for
obstructions and make sure that the jet holes
are clear. Obstruction of the holes can be due
to sludge build-up which occurs when regular
oil changes have been neglected.
Examine the auxiliary shaft for wear and
damage and renew it if necessary.
If the auxiliary shaft endfloat is outside the
limits given in the Specifications fit a new
thrust plate. If this does not bring the endfloat
within limits, renew the shaft.
Whenever the timing belt is removed it is
worthwhile renewing it, especially if it has
covered a high mileage. This is more important
on the 2.0 litre engine where stripped teeth on
the timing belt can cause the pistons to foul
the valves.If the ring gear is badly worn or has missing
teeth, it should be renewed. The old ring can
be removed from the flywheel by cutting a
notch between two teeth with a hacksaw and
then splitting it with a cold chisel. Wear eye
protection when doing this.
To fit a new ring gear requires heating the
ring to 204°C (400°F). This can be done by
polishing four equal sections of the gear,
laying it on a suitable heat resistant surface
(such as fire bricks) and heating it evenly with
a blow lamp or torch until the polished areas
turn a light yellow tinge. Do not overheat or the
hard wearing properties will be lost. The gear
has a chamfered inner edge which should go
against the shoulder when put on the flywheel.
When hot enough place the gear in position
quickly, tapping it home if necessary and let it
cool naturally, without quenching.
1This operation will normally only be required
at comparatively high mileages. However, if
persistent pinking occurs and performance
has deteriorated even though the engine
adjustments are correct, decarbonising and
valve grinding may be required.
2With the cylinder head removed, use a
scraper to remove the carbon from the
combustion chambers and ports. Remove all
traces of gasket from the cylinder head
surface, then wash it thoroughly with paraffin.
3Use a straight-edge and feeler blade to
check that the cylinder head surface is not
distorted. If it is, it must be resurfaced by a
suitably equipped engineering works.
4If the engine is still in the car, clean the
piston crowns and cylinder bore upper edges,
but make sure that no carbon drops between
the pistons and bores. To do this, locate two
of the pistons at the top of their bores and seal
off the remaining bores with paper and
masking tape. Press a little grease between
the two pistons and their bores to collect any
carbon dust; this can be wiped away when the
piston is lowered.5Examine the heads of the valves for pitting
and burning, especially the exhaust valve
heads. Renew any valve which is badly burnt.
Examine the valve seats at the same time. If
the pitting is very slight, it can be removed by
grinding the valve heads and seats together
with coarse, then fine, grinding paste.
6Where excessive pitting has occurred, the
valve seats must be recut or renewed by a
suitably equipped engineering works.
7Valve grinding is carried out as follows.
Place the cylinder head upside down on a
bench on blocks of wood.
8Smear a trace of coarse carborundum paste
on the seat face and press a suction grinding
tool onto the valve head. With a semi-rotary
action, grind the valve head to its seat, lifting
the valve occasionally to redistribute the
grinding paste. When a dull matt even surface
is produced on both the valve seat and the
valve, wipe off the paste and repeat the
process with fine carborundum paste as
before. A light spring placed under the valve
head will greatly ease this operation. When a
smooth unbroken ring of light grey matt finish
is produced on both the valve and seat, the
grinding operation is complete.
9Scrape away all carbon from the valve head
and stem, and clean away all traces of
grinding compound. Clean the valves and
seats with a paraffin soaked rag, then wipe
with a clean rag.
10If the guides are worn they will need
reboring for oversize valves or for fitting guide
inserts. The valve seats will also need
recutting to ensure that they are concentric
with the stems. This work should be given to
your Ford dealer or local engineering works.
11If the valve springs have been in use
for 20 000 miles (32 000 km) or more, renew
them. Always renew the valve stem oil seals
when the valves are removed.
1To ensure maximum life with minimum
trouble from a rebuilt engine, not only must
everything be correctly assembled, but it must
also be spotlessly clean. All oilways must be
clear, and locking washers and spring washers
must be fitted where indicated. Oil all bearings
and other working surfaces thoroughly with
engine oil during assembly.
2Before assembly begins, renew any bolts or
studs with damaged threads.
3Gather together a torque wrench, oil can,
clean rag, and a set of engine gaskets and oil
seals, together with a new oil filter.
4If they have been removed, new cylinder
head bolts and flywheel bolts will also be
required.
35Engine reassembly - general
information
34Cylinder head - decarbonising,
valve grinding and renovation
33Flywheel ring gear -
examination and renovation
32Timing belt - examination and
renovation
31Auxiliary shaft - examination
and renovation
30Camshaft and cam followers
- examination and renovation
2A•14SOHCengines
29.4a Checking a piston ring gap at the top
of the cylinder29.4b Checking a ring gap at the bottom of
the cylinder
To prevent carbon build-up,
polish the piston crown with
metal polish, but remove all
traces of the polish after.
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