width FORD FIESTA 1989 Service Repair Manual

home by hand, then tighten them securely, to
the specified torque wrench settings, where
given.
11Refit the auxiliary drivebelt as described in
Chapter 1 on completion.
7 Timing belt covers -
removal and refitting
4
Upper cover
1 Unscrew the cover’s two mounting bolts
and withdraw it (see illustration) .
2 Refitting is the reverse of the removal
procedure; ensure that the cover edges
engage correctly with each other, and note the
torque wrench setting specified for the bolts.
Middle cover
3 Slacken the water pump pulley bolts.
4 Remove the timing belt upper cover.
5 Remove the auxiliary drivebelt (see Chap-
ter 1).
6 Unbolt and remove the water pump pulley.
7 Unscrew the middle cover fasteners (one
bolt at the front, one at the lower rear, one
stud at the top rear) and withdraw the cover.
8 Refitting is the reverse of the removal
procedure. Ensure that the cover edges
engage correctly with each other, and note
the torque wrench settings specified for the
various fasteners.
Lower cover
9 Slacken the water pump pulley bolts.
10 Remove the crankshaft pulley (see
Section 6) then unbolt and remove the water
pump pulley.
11 Unscrew the three cover securing bolts,
and withdraw it (see illustration) .
12 Refitting is the reverse of the removal
procedure; ensure the cover edges engage
correctly with each other, and note the torque
wrench settings specified for the various
fasteners.
Inner shield
13 Remove the timing belt, its tensioner
components and the camshaft sprockets (see
Sections 8 and 9). 14
The shield is secured to the cylinder head
by two bolts at the top, and by two studs
lower down; unscrew these and withdraw the
shield (see illustration) .
15 Refitting is the reverse of the removal
procedure; note the torque wrench settings
specified for the various fasteners.
8 Timing belt - removal, refitting
and adjustment
4
Note: To carry out this operation, a new timing
belt (where applicable), a new cylinder head
cover gasket, and some special tools (see text) will be required. If the timing belt is being
removed for the first time since the vehicle
left the factory, a tensioner spring and
retaining pin must be obtained for fitting on
reassembly.
Removal
1
Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Slacken the water pump pulley bolts.
3 Remove the cylinder head cover (see
Section 4).
4 Remove the spark plugs, covering their
holes with clean rag, to prevent dirt or other
foreign bodies from dropping in (see Chap-
ter 1).
5 Remove the auxiliary drivebelt (see Chap-
ter 1).
6 Position the engine with No 1 piston at TDC
on compression as described in Section 3.
7 Unbolt and remove the water pump pulley
and, where fitted, the auxiliary drivebelt idler
pulley.
8 Obtain Ford service tool 21-162, or
fabricate a substitute alternative from a strip
of metal 5 mm thick (while the strip’s
thickness iscritical, its length and width are
not, but should be approximately 180 to
230 mm by 20 to 30 mm). Check that Nos 1
and 4 cylinders are at TDC - No 1 on the
compression stroke - by resting this tool on
the cylinder head mating surface, and sliding
Zetec engine in-car repair procedures 2C•5
7.11 Removing timing belt lower cover - bolt locations arrowed7.14 Timing belt inner shield fasteners (arrowed)
7.1 Timing belt and cover details2C
1595Ford Fiesta Remake 1 Timing belt upper
cover
2 Inlet camshaft
toothed pulley
3 Exhaust camshaft
toothed pulley
4 Timing belt
5 Timing belt
tensioner
6 Crankshaft toothed pulley
7 Timing belt middle cover
8 Timing belt lower
cover
9 Crankshaft pulley
10 Water pump pulleyprocarmanuals.com
http://vnx.su

and evenly the pressure of the valve springs
on the caps.
5Withdraw the caps, noting their markings
and the presence of the locating dowels, then
remove the camshafts and withdraw their oil
seals. The inlet camshaft can be identified by
the reference lobe for the camshaft position
sensor; therefore, there is no need to mark the
camshafts (see illustrations) .
6 Obtain sixteen small, clean containers, and
number them 1 to 16. Using a rubber sucker,
withdraw each hydraulic tappet in turn, invert
it to prevent oil loss, and place it in its
respective container, which should then be
filled with clean engine oil (see illustrations).
Do not interchange the hydraulic tappets, or
the rate of wear will be much increased. Do
not allow them to lose oil, or they will take a
long time to refill on restarting the engine,
resulting in incorrect valve clearances.
Inspection
7 With the camshafts and hydraulic tappets
removed, check each for signs of obvious
wear (scoring, pitting etc) and for ovality, and
renew if necessary.
8 Measure the outside diameter of each
tappet (see illustration) - take measurements
at the top and bottom of each tappet, then a
second set at right-angles to the first; if any
measurement is significantly different from the
others, the tappet is tapered or oval and must be renewed. If the necessary equipment is
available, measure the inside diameter of the
corresponding cylinder head bore. Compare
the measurements obtained to those given
in the Specifications Section of this Chapter; if
the tappets or the cylinder head bores are
excessively worn, new tappets and/or a new
cylinder head will be required.
9
If the engine’s valve components have
sounded noisy, particularly if the noise
persists after initial start-up from cold, there is
reason to suspect a faulty hydraulic tappet.
Only a good mechanic experienced in these
engines can tell whether the noise level is
typical, or if renewal of one or more of the
tappets is warranted. If faulty tappets are
diagnosed, and the engine’s service history is
unknown, it is always worth trying the effect of
renewing the engine oil and filter (see Chap-
ter 1), using onlygood-quality engine oil of the
recommended viscosity and specification,
before going to the expense of renewing any
of the tappets - refer also to the advice in
Section 5 of this Chapter.
10 Visually examine the camshaft lobes for
score marks, pitting, galling (wear due to
rubbing) and evidence of overheating (blue,
discoloured areas). Look for flaking away of
the hardened surface layer of each lobe. If any
such signs are evident, renew the component
concerned. 11
Examine the camshaft bearing journals
and the cylinder head bearing surfaces for
signs of obvious wear or pitting. If any such
signs are evident, renew the component
concerned.
12 Using a micrometer, measure the
diameter of each journal at several points. If
the diameter of any one journal is less than
the specified value, renew the camshaft.
13 To check the bearing journal running
clearance, remove the hydraulic tappets, use
a suitable solvent and a clean lint-free rag to
clean carefully all bearing surfaces, then refit
the camshafts and bearing caps with a strand
of Plastigauge across each journal. Tighten
the bearing cap bolts to the specified torque
wrench setting (do not rotate the camshafts),
then remove the bearing caps and use the
scale provided to measure the width of the
compressed strands. Scrape off the
Plastigauge with your fingernail or the edge of
a credit card - don’t scratch or nick the
journals or bearing caps.
14 If the running clearance of any bearing is
found to be worn to beyond the specified
service limits, fit a new camshaft and
repeat the check; if the clearance is still
excessive, the cylinder head must be renewed.
15 To check camshaft endfloat, remove the
hydraulic tappets, clean the bearing surfaces
carefully, and refit the camshafts and bearing
Zetec engine in-car repair procedures 2C•9
11.6a Removing hydraulic tappets
11.5b Inlet camshaft has lobe for camshaft position sensor11.5a Note locating dowels when removing camshaft bearing caps
11.8 Use a micrometer to measurediameter of hydraulic tappets11.6b Hydraulic tappets must be stored as described in text
2C
1595Ford Fiesta Remakeprocarmanuals.com
http://vnx.su

2D
1595Ford Fiesta Remake
HCS engines
Cylinder head
Maximum permissible gasket surface distortion (measured over
full length) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . 0.15 mm
Valve seat angle (inlet and exhaust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45º
Valve seat width (inlet and exhaust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.18 to 1.75 mm*
*The inlet and exhaust valves have special inserts which cannot be recut\
using conventional tools.
Valves - generalInletExhaust
Valve length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 103.7 to 104.4 mm 104.2 to 104.7 mm
Valve head diameter: 1.0 and 1.1 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.90 to 33.10 mm 28.90 to 29.10 mm
1.3 litre engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 34.40 to 34.60 mm 28.90 to 29.10 mm
Valve stem diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 7.0 mm 7.0 mm
Valve stem-to-guide clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.020 to 0.069 0.046 to 0.095
Cylinder block
Cylinder bore diameter: 1.0 and 1.1 litre engines:
Standard class 1 (or A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.68 to 68.69 mm
Standard class 2 (or B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.69 to 68.70 mm
Standard class 3 (or C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.70 to 68.71 mm
Oversize 0.5 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 69.20 to 69.21 mm
Oversize 1.0 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 69.70 to 69.71 mm
1.3 litre engines:
Standard class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 73.94 to 73.95 mm
Standard class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 73.50 to 73.96 mm
Standard class 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 73.96 to 73.97 mm
Oversize 0.5 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 74.50 to 74.51 mm
Oversize 1.0 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 75.00 to 75.01 mm
Chapter 2 Part D:
Engine removal and overhaul procedures
Camshaft and tappets - removal, inspection and refitting (HCS engines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 10
Crankshaft - refitting and main bearing running clearance check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 17
Crankshaft - removal and inspection . . . . . . . . . . . . . . . . . . . . . . . . 12
Cylinder block/crankcase - cleaning and inspection . . . . . . . . . . . . 13
Cylinder head - dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cylinder head - reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cylinder head and valve components - cleaning and inspection . . . 8
Engine - initial start-up after overhaul . . . . . . . . . . . . . . . . . . . . . . . . 19
Engine - removal and refitting (HCS engines) . . . . . . . . . . . . . . . . . . 3
Engine overhaul - preliminary information . . . . . . . . . . . . . . . . . . . . . 6 Engine overhaul - reassembly sequence . . . . . . . . . . . . . . . . . . . . . 15
Engine/transmission removal - preparation and precautions . . . . . . 2
Engine/transmission - removal and refitting (CVH and
PTE engines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 4
Engine/transmission - removal and refitting (Zetec engines) . . . . . . 5
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 1
Main and big-end bearings - inspection . . . . . . . . . . . . . . . . . . . . . . 14
Piston/connecting rod assemblies - refitting and big-end
bearing running clearance check . . . . . . . . . . . . . . . . . . . . . . . . . 18
Piston/connecting rod assemblies - removal and inspection . . . . . . 11
Piston rings - refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
16
2D•1
Specifications Contents
Easy, suitable for
novice with little
experience Fairly easy,
suitable
for beginner with
some experience Fairly difficult,
suitable for competent
DIY mechanic
Difficult,
suitable for
experienced DIY
mechanic Very difficult,
suitable for expert DIY
or professional
Degrees of difficulty
54321
procarmanuals.com
http://vnx.su

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
1595Ford Fiesta Remakeprocarmanuals.com
http://vnx.su

necessary for reassembly of the engine are at
hand. In addition to all normal tools and
materials, jointing and thread locking
compound will be needed during engine
reassembly. For general-purpose applications,
it is recommended that Loctite 275 setting
sealer or Hylomar PL32M non-setting sealer
be used for joints where required, and
Loctite 270 for stud and bolt thread-locking.
For specific applications on Zetec engines,
Hylosil 102 for the cylinder block/crankcase-
to-sump/oil pump/oil seal carrier joints, and
Loctite 518 for the camshaft right-hand
bearing caps should be used. These are
recommended by, and obtained from, Ford
dealers. In all other cases, provided the
relevant mating surfaces are clean and flat,
new gaskets will be sufficient to ensure joints
are oil-tight. Do notuse any kind of silicone-
based sealant on any part of the fuel system or
inlet manifold, and neveruse exhaust sealants
upstream of the catalytic converter.
2 In order to save time and avoid problems,
engine reassembly can be carried out in the
following order (as applicable).
a) Engine ventilation cap (CVH and PTE engines).
b) Tappets and camshaft (HCS engines).
c) Crankshaft and main bearings.
d) Pistons and connecting rods.
e) Oil pump.
f) Sump.
g) Flywheel/driveplate.
h) Cylinder head.
i) Timing sprockets and chain/belt.
j) Engine external components.
3 Ensure that everything is clean prior to
reassembly. As mentioned previously, dirt and
metal particles can quickly destroy bearings
and result in major engine damage. Use clean
engine oil to lubricate during reassembly.
16 Piston rings - refitting
2
1Before installing new piston rings, check
the end gaps. Lay out each piston set with a
piston/connecting rod assembly, and keep them together as a matched set from now on.
2
Insert the top compression ring into the first
cylinder, and square it up with the cylinder
walls by pushing it in with the top of the
piston. The ring should be near the bottom of
the cylinder, at the lower limit of ring travel.
3 To measure the end gap, slip feeler gauges
between the ends of the ring, until a gauge
equal to the gap width is found. The feeler
gauge should slide between the ring ends
with a slight amount of drag. Compare the
measurement to the value given in the
Specifications in this Chapter; if the gap is
larger or smaller than specified, double-check to make sure you have the correct rings
before proceeding. If you are assessing the
condition of used rings, have the cylinder
bores checked and measured by a Ford
dealer or similar engine reconditioning
specialist, so that you can be sure of exactly
which component is worn, and seek advice as
to the best course of action to take.
4 If the end gap is still too small, it must be
opened up by careful filing of the ring ends
using a fine file. If it is too large, this is not as
serious, unless the specified limit is exceeded,
in which case very careful checking is
required of the dimensions of all components,
as well as of the new parts.
5 Repeat the procedure for each ring that will
be installed in the first cylinder, and for each
ring in the remaining cylinders. Remember to
keep rings, pistons and cylinders matched up.
6 Refit the piston rings as follows. Where the
original rings are being refitted, use the marks
or notes made on removal, to ensure that
each ring is refitted to its original groove and
the same way up. New rings generally have
their top surfaces identified by markings
(often an indication of size, such as “STD”, or
the word “TOP”) - the rings must be fitted with
such markings uppermost (see illustration) .
Note: Always follow the instructions printed
on the ring package or box - different
manufacturers may require different
approaches. Do not mix up the top and
second compression rings, as they usually
have different cross-sections.
7 The oil control ring (lowest one on the
piston) is usually installed first. It is composed
of three separate elements. Slip the
spacer/expander into the groove. If an
anti- rotation tang is used, make sure it is
inserted into the drilled hole in the ring groove.
Next, install the lower side rail. Don’t use a
piston ring installation tool on the oil ring side
rails, as they may be damaged. Instead, place
one end of the side rail into the groove
between the spacer/expander and the ring
land, hold it firmly in place, and slide a finger
around the piston while pushing the rail into
the groove. Next, install the upper side rail in
the same manner.
8 After the three oil ring components have
been installed, check that both the upper and
lower side rails can be turned smoothly in the
ring groove.
9 The second compression (middle) ring is installed next, followed by the top
compression ring - ensure their marks are
uppermost, and be careful not to confuse
them. Don’t expand either ring any more than
necessary to slide it over the top of the piston.
10
On HCS engines, when all of the rings are
fitted to each piston, arrange them so that the
gaps are positioned as described in the
Specifications at the start of this Chapter.
11 On the CVH and PTE engines, when all of
the rings are fitted to each piston, arrange
them so that the gaps are spaced at 120º
intervals, with no gaps positioned above the
gudgeon pin hole.
12 On Zetec engines, when all the rings are
fitted to each piston, space the ring gaps
(including the elements of the oil control ring)
uniformly around the piston at 120º intervals.
17 Crankshaft - refitting and
main bearing running
clearance check
4
1 It is assumed at this point that the cylinder
block/crankcase and crankshaft have been
cleaned, inspected and repaired or
reconditioned as necessary. Position the
engine upside-down.
2 Remove the main bearing cap bolts, and lift
out the caps. Lay the caps out in the proper
order, to ensure correct installation.
3 If they’re still in place, remove the old
bearing shells from the block and the main
bearing caps. Wipe the bearing recesses of
the block and caps with a clean, lint-free
cloth. They must be kept spotlessly-clean!
Main bearing running clearance
check
HCS engines
4 Wipe clean the main bearing shell seats in
the crankcase, and clean the backs of the
bearing shells. Insert the respective upper
shells (dry) into position in the crankcase.
Note that the upper shells have grooves in
them (the lower shells are plain, and have a
wider location lug). Where the old main
bearings are being refitted, ensure that they
are located in their original positions. Make
sure that the tab on each bearing shell fits into
the notch in the block or cap.
Caution: Don’t hammer the shells into
place, and don’t nick or gouge the bearing
faces. No lubrication should be used at
this time.
5 Place the crankshaft thrustwashers into
position in the crankcase, so that their oil
grooves are facing outwards (away from the
central web) (see illustration) .
CVH and PTE engines
6Wipe clean the main bearing shell seats in
the crankcase, and clean the backs of the
bearing shells. Insert the respective upper
shells (dry) into position in the crankcase.
Note that with the exception of the front main
bearing, the upper shells have grooves in
2D•22 Engine removal and overhaul procedures
16.6 Look for etched markings (“STD” -
indicating a standard-sized ring - shown
here) identifying piston ring top surface
1595Ford Fiesta Remakeprocarmanuals.com
http://vnx.su

them (the lower half bearings are plain). The
upper and lower front shells are narrower in
section, and both have an oil groove in them.
Where the old main bearings are being
refitted, ensure that they are located in their
original positions (see illustration). Make sure
that the tab on each bearing shell fits into the
notch in the block or cap.
Caution: Don’t hammer the shells into
place, and don’t nick or gouge the bearing
faces. No lubrication should be used at
this time.
7 Relocate the crankcase ventilation cap and
its retaining spring into position in the
crankcase (see illustration) .
8 Place the crankshaft thrustwashers into
position in the crankcase so that their oil
grooves are facing outwards (away from the
central web).
Zetec engines
9 Wipe clean the main bearing shell seats in
the crankcase, and clean the backs of the
new main bearing shells. Fit the shells with an
oil groove in each main bearing location in the
block; note the thrustwashers integral with the
No 3 (centre) main bearing upper shell. Fit the
other shell from each bearing set in the
corresponding main bearing cap. Make sure
the tab on each bearing shell fits into the
notch in the block or cap. Also, the oil holes in the block must line up with the oil holes in the
bearing shell
(see illustration) .
Caution: Don’t hammer the shells into
place, and don’t nick or gouge the bearing
faces. No lubrication should be used at
this time.
All engines
10 Clean the bearing surfaces of the shells in
the block, and the crankshaft main bearing
journals with a clean, lint-free cloth. Check or
clean the oil holes in the crankshaft, as any
dirt here can go only one way - straight
through the new bearings.
11 Once you’re certain the crankshaft is
clean, carefully lay it in position in the main
bearings. Trim several pieces of the
appropriate-size Plastigauge (they must be
slightly shorter than the width of the main
bearings), and place one piece on each
crankshaft main bearing journal, parallel with
the crankshaft centre-line (see illustration).
12 Clean the bearing surfaces of the cap
shells, and install the caps in their respective
positions (don’t mix them up) with the arrows
pointing to the timing chain/belt end of the
engine. Don’t disturb the Plastigauge.
13 Working on one cap at a time, from the
centre main bearing outwards (and ensuring
that each cap is tightened down squarely and
evenly onto the block), tighten the main
bearing cap bolts to the specified torque wrench setting. Don’t rotate the crankshaft at
any time during this operation!
14
Remove the bolts, and carefully lift off the
main bearing caps. Keep them in order. Don’t
disturb the Plastigauge or rotate the
crankshaft. If any of the main bearing caps are
difficult to remove, tap them gently from
side-to-side with a soft-faced mallet to loosen
them.
15 Compare the width of the crushed
Plastigauge on each journal with the scale
printed on the Plastigauge envelope to obtain
the main bearing running clearance (see
illustration) . Check the Specifications to
make sure that the clearance is correct.
16 If the clearance is not as specified, seek
the advice of a Ford dealer or similar engine
reconditioning specialist - if the crankshaft
journals are in good condition, it may be
possible simply to renew the shells to achieve
the correct clearance. If this is not possible,
the crankshaft must be reground by a
specialist who can supply the necessary
undersized shells. First though, make sure
that no dirt or oil was between the bearing
shells and the caps or block when the
clearance was measured. If the Plastigauge is
noticeably wider at one end than the other,
the journal may be tapered.
17 Carefully scrape all traces of the
Plastigauge material off the main bearing
journals and the bearing surfaces. Be very
Engine removal and overhaul procedures 2D•23
17.7 Fit the crankcase ventilation cap and its retaining spring17.6 Fit the bearing shells to the mainbearing housings in the crankcase
17.15 Compare the width of the crushed
Plastigauge to the scale on the envelope to determine the main bearing running
clearance17.11 Lay the Plastigauge strips (arrowed)on the main bearing journals, parallel to the crankshaft centre-line17.9 Tab on each bearing shell must
engage with notch in block or cap, and oil
holes in upper shells must align with block
oilways
2D
1595Ford Fiesta Remake
17.5 Place the crankshaft thrustwashers
into position in the crankcase so that their oil grooves are facing outwardsprocarmanuals.com
http://vnx.su

careful not to scratch the bearing - use your
fingernail or the edge of a credit card.
Final crankshaft refitting
18Carefully lift the crankshaft out of the
engine. Clean the bearing surfaces of the
shells in the block, then apply a thin, uniform
layer of clean molybdenum disulphide- based
grease, engine assembly lubricant, or clean
engine oil to each surface. Coat the
thrustwasher surfaces as well.
19 Lubricate the crankshaft oil seal journals
with molybdenum disulphide-based grease,
engine assembly lubricant, or clean engine oil.
20 Make sure the crankshaft journals are
clean, then lay the crankshaft back in place in
the block (see illustration) . Clean the bearing
surfaces of the shells in the caps, then
lubricate them. Install the caps in their
respective positions, with the arrows pointing
to the timing belt/chain end of the engine.
21 Working on one cap at a time, from the
centre main bearing outwards (and ensuring
that each cap is tightened down squarely and
evenly onto the block), tighten the main
bearing cap bolts to the specified torque
wrench setting.
22 Rotate the crankshaft a number of times
by hand, to check for any obvious binding.
23 Check the crankshaft endfloat (see Sec-
tion 12). It should be correct if the crankshaft
thrust faces aren’t worn or damaged.
24 Refit the crankshaft left-hand oil seal
carrier, and install a new seal (see Part A, B
or C of this Chapter according to engine type).
18 Piston/connecting rod
assemblies - refitting and big-end
bearing running clearance check
4
Note: On HCS engines, new big-end bearing
cap retaining bolts will be required for
reassembly.
1 Before refitting the piston/connecting rod
assemblies, the cylinder bores must be
perfectly clean, the top edge of each cylinder
must be chamfered, and the crankshaft must
be in place.
2 Remove the big-end bearing cap from No 1
cylinder connecting rod (refer to the marks
noted or made on removal). Remove the
original bearing shells, and wipe the bearing
recesses of the connecting rod and cap with a
clean, lint-free cloth. They must be kept
spotlessly-clean!
Big-end bearing running
clearance check
3 Clean the back of the new upper bearing
shell, fit it to the connecting rod, then fit the
other shell of the bearing set to the big-end
bearing cap. Make sure that the tab on each
shell fits into the notch in the rod or cap
recess (see illustration) .
Caution: Don’t hammer the shells into
place, and don’t nick or gouge the bearing
face. Don’t lubricate the bearing at this
time.
4 It’s critically important that all mating
surfaces of the bearing components are
perfectly clean and oil-free when they’re
assembled.
5 Position the piston ring gaps as described
in Section 16, lubricate the piston and rings
with clean engine oil, and attach a piston ring
compressor to the piston. Leave the skirt
protruding about a quarter-inch, to guide the
piston into the cylinder bore. The rings must
be compressed until they’re flush with the
piston.
6 Rotate the crankshaft until No 1 crankpin
(big-end) journal is at BDC (Bottom Dead
Centre), and apply a coat of engine oil to the
cylinder walls.
7 Arrange the No 1 piston/connecting rod
assembly so that the arrow on the piston crown points to the timing belt/chain end of
the engine. Gently insert the assembly into the
No 1 cylinder bore, and rest the bottom edge
of the ring compressor on the engine block.
8
Tap the top edge of the ring compressor to
make sure it’s contacting the block around its
entire circumference.
9 Gently tap on the top of the piston with the
end of a wooden hammer handle (see
illustration) , while guiding the connecting
rod’s big-end onto the crankpin. The piston
rings may try to pop out of the ring
compressor just before entering the cylinder
bore, so keep some pressure on the ring
compressor. Work slowly, and if any
resistance is felt as the piston enters the
cylinder, stop immediately. Find out what’s
binding, and fix it before proceeding. Do not,
for any reason, force the piston into the
cylinder - you might break a ring and/or the
piston.
10 To check the big-end bearing running
clearance, cut a piece of the appropriate-size
Plastigauge slightly shorter than the width of
the connecting rod bearing, and lay it in place
on the No 1 crankpin (big-end) journal, parallel
with the crankshaft centre-line (see
illustration 17.11).
11 Clean the connecting rod-to-cap mating
surfaces, and refit the big-end bearing cap.
Tighten the cap bolts evenly - on the HCS and
Zetec engines, first use a torque wrench to
tighten the bolts to the Stage 1 torque setting,
then use an ordinary socket extension bar and
an angle gauge to tighten the bolts further
through the Stage 2 angle (see illustration).
On the CVH and PTE engines, tighten the
bolts progressively to the specified torque;
further angle-tightening is not required on
these engines. Use a thin-wall socket, to
avoid erroneous torque readings that can
result if the socket is wedged between the
cap and nut. If the socket tends to wedge
itself between the nut and the cap, lift up on it
slightly until it no longer contacts the cap.
Don’t rotate the crankshaft at any time during
this operation!
12 Unscrew the bolts and detach the cap,
being very careful not to disturb the
Plastigauge.
13 Compare the width of the crushed
2D•24 Engine removal and overhaul procedures
18.11 Angle-tightening the big-end bolts
using the correct tool18.9 The piston can be driven gently into
the cylinder bore with the end of a wooden
or plastic hammer handle18.3 Tab on each big-end bearing shell
must engage with notch in connecting rod
or cap
17.20 Refit the crankshaft after checkingbearing clearances
1595Ford Fiesta Remakeprocarmanuals.com
http://vnx.su

into the engine induction system and thence
into the combustion chambers. This
arrangement eliminates any fuel mixture
control problems. The operating principles for
the system used on the Endura-E engine are
basically the same as just described with
revisions to the component locations and
hose arrangement.On CVH and PTE engines, a closed-circuit
type crankcase ventilation system is used, the
function of which is basically the same as that
described for the HCS engine type, but the
breather hose connects directly to the rocker
cover. The oil filler cap incorporates a
separate filter in certain applications. On Zetec engines, the crankcase ventilation
system main components are the oil
separator mounted on the front (radiator) side
of the cylinder block/crankcase, and the
Positive Crankcase Ventilation (PCV) valve set
in a rubber grommet in the separator’s left-
hand upper end. The associated pipework
consists of a crankcase breather pipe and two
flexible hoses connecting the PCV valve to a
union on the left-hand end of the inlet
manifold, and a crankcase breather hose
connecting the cylinder head cover to the air
cleaner assembly. A small foam filter in the air
cleaner prevents dirt from being drawn
directly into the engine.
Evaporative emissions control system
This system is fitted to minimise the escape
of unburned hydrocarbons into the
atmosphere. Fuel evaporative emissions
control systems are limited on vehicles
meeting earlier emissions regulations;
carburettor float chambers are vented
internally, whilst fuel tanks vent to atmosphere
through a combined roll-over/anti-trickle-fill
valve. On vehicles meeting the more stringent
emissions regulations, the fuel tank filler cap
is sealed, and a charcoal canister is used to
collect and store petrol vapours generated in
the tank when the vehicle is parked. When the
engine is running, the vapours are cleared
from the canister (under the control of the
EEC IV engine management module via the
canister-purge solenoid valve) into the inlet
tract, to be burned by the engine during
normal combustion. To ensure that the engine runs correctly
when it is cold and/or idling, and to protect
the catalytic converter from the effects of an
over-rich mixture, the canister-purge solenoid
valve is not opened by the EEC IV module
until the engine is fully warmed-up and
running under part-load; the solenoid valve is
then switched on and off, to allow the stored
vapour to pass into the inlet tract.
Pulse-air system
This system consists of the pulse-air
solenoid valve, the pulse-air valve itself, the
delivery tubing, a pulse-air filter, and on some
models, a check valve. The system injects
filtered air directly into the exhaust ports,
using the pressure variations in the exhaust
gases to draw air through from the filter housing; air will flow into the exhaust only
when its pressure is below atmospheric. The
pulse-air valve can allow gases to flow only
one way, so there is no risk of hot exhaust
gases flowing back into the filter.
The system’s primary function is raise
exhaust gas temperatures on start-up, thus
reducing the amount of time taken for the
catalytic converter to reach operating
temperature. Until this happens, the system
reduces emissions of unburned hydrocarbon
particles (HC) and carbon monoxide (CO) by
ensuring that a considerable proportion of
these substances remaining in the exhaust
gases after combustion are burned up, either
in the manifold itself or in the catalytic
converter.
To ensure that the system does not upset
the smooth running of the engine under
normal driving conditions, it is linked by the
pulse-air solenoid valve to the EEC IV module,
so that it only functions during engine warm-
up, when the oxygen sensor is not influencing
the fuel/air mixture ratio.
Catalytic converter
Catalytic converters have been introduced
progressively on all models in the range, to
meet the various emissions regulations.
The catalytic converter is located in the
exhaust system, and operates in conjunction
with an exhaust gas oxygen sensor to reduce
exhaust gas emissions. The catalytic
converter uses precious metals (platinum and
palladium or rhodium) as catalysts to speed
up the reaction between the pollutants and
the oxygen in the vehicle’s exhaust gases, CO
and HC being oxidised to form H
2O and CO2and (in the three-way type of catalytic
converter) NO
xbeing reduced to N2. Note :
The catalytic converter is not a filter in the
physical sense; its function is to promote a
chemical reaction, but it is not itself affected
by that reaction. The converter consists of an element (or
“substrate”) of ceramic honeycomb, coated
with a combination of precious metals in such
a way as to produce a vast surface area over
which the exhaust gases must flow; the whole
being mounted in a stainless-steel box. A
simple “oxidation” (or “two-way”) catalytic
converter can deal with CO and HC only,
while a “reduction” (or “three-way”) catalytic
converter can deal with CO, HC and NO
x.
Three-way catalytic converters are further
sub-divided into “open-loop” (or
“unregulated”) converters, which can remove
50 to 70% of pollutants and “closed-loop”
(also known as “controlled” or “regulated”)
converters, which can remove over 90% of
pollutants.
In order for a closed-loop catalytic
converter to operate effectively, the air/fuel
mixture must be very accurately controlled,
and this is achieved by measuring the oxygen
content of the exhaust gas. The oxygen
sensor transmits information on the exhaust
gas oxygen content to the EEC IV engine management module, which adjusts the
air/fuel mixture strength accordingly.
The sensor has a built-in heating element
which is controlled by the EEC IV module, in
order to bring the sensor’s tip to an efficient
operating temperature as rapidly as possible.
The sensor’s tip is sensitive to oxygen, and
sends the module a varying voltage
depending on the amount of oxygen in the
exhaust gases; if the inlet air/fuel mixture is
too rich, the sensor sends a high-voltage
signal. The voltage falls as the mixture
weakens. Peak conversion efficiency of all
major pollutants occurs if the inlet air/fuel
mixture is maintained at the chemically-
correct ratio for the complete combustion of
petrol - 14.7 parts (by weight) of air to 1 part
of fuel (the “stoichiometric” ratio). The sensor
output voltage alters in a large step at this
point, the module using the signal change as
a reference point, and correcting the inlet
air/fuel mixture accordingly by altering the fuel
injector pulse width (injector opening time). Removal and refitting procedures for
the oxygen sensor are given in Parts B, C
and D of this Chapter according to fuel
system type.
2 Exhaust system - renewal
2
Warning: Inspection and repair
of exhaust system components
should be done only after
enough time has elapsed after
driving the vehicle to allow the system
components to cool completely. This
applies particularly to the catalytic
converter, which runs at very high
temperatures. Also, when working under
the vehicle, make sure it is securely
supported on axle stands.
If the exhaust system components are
extremely corroded or rusted together, they
will probably have to be cut from the exhaust
system. The most convenient way of
accomplishing this is to have a quick-fit
exhaust repair specialist remove the corroded
sections. Alternatively, you can simply cut off
the old components with a hacksaw. If you do
decide to tackle the job at home, be sure to
wear eye protection, to protect your eyes from
metal chips, and work gloves, to protect your
hands. If the production-fit system is still
fitted, it must be cut for the service-
replacement system sections to fit. The best
way of determining the correct cutting point is
to obtain the new centre or rear section first
then, with the old system removed, lay the
two side by side on the ground. It should now
be relatively easy to determine where the old
system needs to be cut, and it can be marked
accordingly. Remember to allow for the
overlap where the two sections will plug
together.
4E•2 Exhaust and emission control systems
1595Ford Fiesta Remakeprocarmanuals.com
http://vnx.su

1595 Ford Fiesta Remake
REF
Dimensions and weights
Note:All figures are approximate, and may vary according to model. Refer to m\
anufacturer’s data for exact figures.
Dimensions
Overall length: 3/5 door hatchback models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3743 mm
XR2i, RS Turbo and RS 1800 models . . . . . . . . . . . . . . . . . . . . . . . . . 3801 mm
Courier models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 4052 mm
Width (excluding mirrors): 3/5 door hatchback models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1606 mm
XR2i, RS Turbo and RS 1800 models . . . . . . . . . . . . . . . . . . . . . . . . . 1630 mm
Courier models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 1650 mm
Overall height: 3/5 door hatchback models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1376 mm
XR2i, RS Turbo and RS 1800 models . . . . . . . . . . . . . . . . . . . . . . . . . 1365 mm
Courier models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 1812 mm
Wheelbase: Courier models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 2700 mm
All other models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 2446 mm
Front track: 3/5 door hatchback models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1392 mm
XR2i, RS Turbo and RS 1800 models . . . . . . . . . . . . . . . . . . . . . . . . . 1406 mm
Courier models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 1392 mm
Rear track: 3/5 door hatchback models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1384 mm
XR2i, RS Turbo and RS 1800 models . . . . . . . . . . . . . . . . . . . . . . . . . 1376 mm
Courier models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 1395 mm
Dimensions and weights . . . . . . . . . . . . . . . . REF•1
Vehicle identification . . . . . . . . . . . . . . . . . . . REF•3
General repair procedures . . . . . . . . . . . . . . REF•4
Jacking and vehicle support . . . . . . . . . . . . . REF•5
Buying spare parts . . . . . . . . . . . . . . . . . . . . REF•5
Radio/cassette unit anti-theft system . . . . . REF•5Conversion factors . . . . . . . . . . . . . . . . . . . .
REF•6
Tools and working facilities . . . . . . . . . . . . . . REF•7
MOT test checks . . . . . . . . . . . . . . . . . . . . . REF•10
Fault finding . . . . . . . . . . . . . . . . . . . . . . . . REF•14
Glossary of technical terms . . . . . . . . . . . . REF•22
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REF•27
Reference REF•1
procarmanuals.com
http://vnx.su

1595 Ford Fiesta Remake
MOT test checksREF•13
REF
MExamine the handbrake mechanism,
checking for frayed or broken cables,
excessive corrosion, or wear or insecurity of
the linkage. Check that the mechanism works
on each relevant wheel, and releases fully,
without binding.
M It is not possible to test brake efficiency
without special equipment, but a road test can
be carried out later to check that the vehicle
pulls up in a straight line.
Fuel and exhaust systems
M Inspect the fuel tank (including the filler
cap), fuel pipes, hoses and unions. All
components must be secure and free fr om
leaks.
M Examine the exhaust system over its entire
length, checking for any damaged, broken or
missing mountings, security of the retaining
clamps and rust or corrosion.
Wheels and tyres
M Examine the sidewalls and tread area of
each tyre in turn. Check for cuts, tears, lumps,
bulges, separation of the tread, and exposure
of the ply or cord due to wear or damage.
Check that the tyre bead is correctly seated
on the wheel rim, that the valve is sound and pr
operly seated, and that the wheel is not
distorted or damaged.
M Check that the tyres are of the correct size
for the vehicle, that they are of the same size
and type on each axle, and that the pressur es
ar e correct.
M Check the tyre tread depth. The legal
minimum at the time of writing is 1.6 mm over
at least three-quarters of the tread width.
Abnormal tread wear may indicate incorrect
fr ont wheel alignment.
Body corrosion
M Check the condition of the entire vehicle
structur e for signs of corrosion in load-bearing
ar eas. (These include chassis box sections,
side sills, cross-members, pillars, and all
suspension, steering, braking system and
seat belt mountings and anchorages.) Any
corrosion which has seriously reduced the
thickness of a load-bearing area is likely to
cause the vehicle to fail. In this case
pr ofessional repairs are likely to be needed.
M Damage or corrosion which causes sharp
or otherwise dangerous edges to be exposed
will also cause the vehicle to fail.
Petrol models
M Have the engine at normal operating
temperatur e, and make sure that it is in good
tune (ignition system in good order, air filter
element clean, etc).
M Befor e any measurements are carried out,
raise the engine speed to around 2500 rpm,
and hold it at this speed for 20 seconds. Allow the engine speed to return to idle, and watch
for smoke emissions from the exhaust
tailpipe. If the idle speed is obviously much
too high, or if dense blue or clearly-visible
black smoke comes from the tailpipe for more
than 5 seconds, the vehicle will fail. As a rule
of thumb, blue smoke signifies oil being burnt
(engine wear) while black smoke signifies
unbur nt fuel (dirty air cleaner element, or other
carbur ettor or fuel system fault).
M An exhaust gas analyser capable of
measuring carbon monoxide (CO) and
hydr ocarbons (HC) is now needed. If such an
instrument cannot be hired or borrowed, a
local garage may agree to perform the check
for a small fee.
CO emissions (mixture)
M At the time of writing, the maximum CO
level at idle is 3.5% for vehicles first used after
August 1986 and 4.5% for older vehicles.
Fr om January 1996 a much tighter limit
(ar ound 0.5%) applies to catalyst-equipped
vehicles first used from August 1992. If the
CO level cannot be reduced far enough to
pass the test (and the fuel and ignition
systems are otherwise in good condition) then
the carburettor is badly worn, or there is some
pr oblem in the fuel injection system or
catalytic converter (as applicable).
HC emissionsM With the CO emissions within limits, HC
emissions must be no more than 1200 ppm
(parts per million). If the vehicle fails this test
at idle, it can be re-tested at around 2000 rpm;
if the HC level is then 1200 ppm or less, this
counts as a pass.
M Excessive HC emissions can be caused by
oil being burnt, but they are more likely to be
due to unburnt fuel.
Diesel models
M The only emission test applicable to Diesel
engines is the measuring of exhaust smoke
density . The test involves accelerating the
engine several times to its maximum
unloaded speed.
Note: It is of the utmost importance that the
engine timing belt is in good condition before
the test is carried out.
M
Excessive smoke can be caused by a dirty
air cleaner element. Otherwise, professional
advice may be needed to find the cause.
4Checks carried out on
YOUR VEHICLE’S EXHAUST
EMISSION SYSTEM
procarmanuals.com
http://vnx.su