1989 FORD FIESTA power steering

4 Auxiliary drivebelt check andrenewal
2
General
1The number of auxiliary drivebelts fitted and
their type depends on engine, and on whether
the vehicle is equipped with power steering.
The drivebelt(s) are located on the right-hand
end of the engine and will be either of the V-
belt type or the flat, multi-ribbed (or “polyvee”)
type. The belt drives the alternator, water
pump and, on CVH and Zetec engines with
power steering, the power steering pump
from the engine’s crankshaft pulley. On HCS
engines with power steering, one belt drives
the alternator and water pump and a separate
belt drives the power steering pump.
2 The good condition and proper tension of
the auxiliary drivebelt is critical to the
operation of the engine. Because of their
composition and the high stresses to which
they are subjected, drivebelts stretch and
deteriorate as they get older. They must,
therefore, be regularly inspected.
Check
3 With the engine switched off, open and
support the bonnet, then locate the auxiliary
drivebelt(s) on the right-hand end of the
engine (Be very careful, and wear protective
gloves to minimise the risk of burning your
hands on hot components, if the engine has
recently been running). For improved access,
jack up the front right-hand side of the
vehicle, support it securely on an axle
stand, remove the roadwheel, then (where
fitted) remove the auxiliary drivebelt lower
cover from inside the wheel arch (see
illustration) .
4 Using an inspection light or an electric
torch, and rotating the engine when necessary
with a spanner applied to the crankshaft
pulley bolt, check the whole length of the drivebelt(s) for cracks, separation of the
rubber, and torn or worn ribs
(see
illustration) . Also check for fraying and
glazing, which gives the drivebelt a shiny
appearance. Both sides of the drivebelt(s)
should be inspected, which means you will
have to twist the drivebelt(s) to check the
underside. Feel the relevant drivebelt where
you can’t see it. If you are in any doubt as to
the condition of the drivebelt(s), renewal is
necessary (go to paragraph 23).
Drivebelt tension
5 The tension must be adjusted manually on
all V-belt type drivebelts, on flat “polyvee”
type drivebelts fitted to early Zetec engines,
and on “polyvee” type drivebelts fitted to HCS
engines to drive the power steering pump.
The “polyvee” type drivebelts used on later
Zetec engines and PTE engines are fitted with
an automatic tensioner to maintain the correct
belt adjustment.
6 For models on which the tension can be
adjusted manually, open the bonnet. Jack up the front right-hand side of the vehicle, and
support it securely on an axle stand. Remove
the roadwheel, then (where fitted) remove the
auxiliary drivebelt lower cover from inside the
wheel arch.
7
Ford technicians use a special tension gauge
and various other special tools for checking
drivebelt adjustment, but for DIY purposes,
checking the belt tension using finger pressure
gives a good indication of correct adjustment.
Apply firm finger pressure midway between the
pulleys on the longest run of the belt, and look
for a deflection of approximately 2.0 mm (i.e. a
total drivebelt “swing” of approximately
4.0 mm) (see illustration) .
8 If adjustment is necessary, proceed as
follows according to belt type.
V-belt with sliding arm type adjuster
9 Loosen off the alternator mounting bolts
and sliding arm adjustment bolts, pivot the
alternator as required to provide the correct
drivebelt tension, then retighten the bolts to
secure (see illustration) .
10 Refit the auxiliary drivebelt cover (where
applicable) and roadwheel, then lower the
vehicle to the ground.
11 Run the engine for about five minutes,
then recheck the tension.
Every 10 000 miles (16 000 km) or 12 months,
whichever comes first
Every 10 000 miles or 12 months1•11
4.9 Alternator sliding arm adjustment
bolt (A) and sliding arm mounting bolt (B) - V-belt with sliding arm type adjuster
4.7 Checking drivebelt adjustment - V-belt types
Note that the 4 mm dimension is the total belt swing and is equal to 2 mm of deflection
4.3 Remove the auxiliary drivebelt lower cover from inside the wheel arch
1
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4.4 Check the auxiliary drivebelt forsigns of wear like these. Very small
cracks across the drivebelt ribs are acceptable. If the cracks are deep, or if the drivebelt looks worn or
damaged in any other way, renew it. This is the “polyvee” type belt, butthe checks on the V-belt type are the same
Turning the engine will be
much easier if the spark
plugs are removed first
(Section 21).
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V-belt and flat “polyvee” type
drivebelt with rack-and-pinion type
adjuster
12Loosen off the alternator mounting bolts
and the adjusting arm mounting bolt. Slacken
the pinion central locking bolt, and turn the
pinion nut as required to take up the tension
of the drivebelt. Hold it at the required setting,
and tighten the central bolt securely to lock
the adjuster arm and set the tension (see
illustrations) .
13 Tighten the alternator mounting and
adjusting arm bolts securely.
14 Refit the auxiliary drivebelt cover (where
applicable) and roadwheel, then lower the
vehicle to the ground.
15 Run the engine for about five minutes,
then recheck the tension.
Flat “polyvee” type drivebelt with
tensioner pulley adjuster (HCS engine
power steering pump drivebelt)
16 Slacken the tensioner pulley centre bolt
then turn the adjuster bolt at the base of the
tensioner pulley bracket, as required, to take
up the tension of the drivebelt. When the belt
deflection is correct, tighten the adjuster
pulley centre retaining bolt.
17 Refit the auxiliary drivebelt cover (where
applicable) and roadwheel, then lower the
vehicle to the ground.
18 Run the engine for about five minutes,
then recheck the tension.
Flat “polyvee” type drivebelt with
automatic adjuster
19 As mentioned above, this type of drivebelt
is tensioned by an automatic tensioner;
regular checks are not required, and manual
“adjustment” is not possible.
20 If you suspect that the drivebelt is slipping
and/or running slack, or that the tensioner is
otherwise faulty, it must be renewed. To do
this, remove the drivebelt as described below,
then unbolt and remove the tensioner. On
fitting the new tensioner, ensure that it is
aligned correctly on its mountings, and
tightened to the specified torque wrench
setting.
Renewal
21 Open the bonnet. Jack up the front right-
hand side of the vehicle, and support it
securely on an axle stand. Remove the
roadwheel, then remove the auxiliary drivebelt
lower cover (where fitted) from inside the
wheel arch.
22 The routing of the drivebelt around the
pulleys is dependent on the drivebelt type,
and on whether power steering is fitted.
Before removing the drivebelt, it’s a good idea
to sketch the belt run around the pulleys; this
will save a lot of frustration when it comes to
refitting. Note that on HCS engines with
power steering, to renew the alternator/
water pump drivebelt it will be necessary to
remove the power steering pump drivebelt
first.
23 If the existing drivebelt is to be refitted,
mark it, or note the maker’s markings on its
flat surface, so that it can be installed the
same way round.
24 To renew a drivebelt with manual
adjustment, slacken the belt tension fully as
described above, according to type. Slip the
belt off the pulleys, then fit the new belt,
ensuring that it is routed correctly. If fitting a
flat “polyvee” type drivebelt, arrange it on the
grooved pulleys so that it is centred in
their grooves, and not overlapping their raised
sides. With the belt in position, adjust the
tension as previously described.
25 To renew the flat, “polyvee” type drivebelt
with automatic adjuster, reach up between
the body and the engine (above the
crankshaft pulley), and apply a spanner to the
hexagon in the centre of the automatic
tensioner’s pulley. Rotate the tensioner pulley
clockwise to release its pressure on the
drivebelt, then slip the drivebelt off the
crankshaft pulley, and release the tensioner
again (see illustration) . Note that on certain
models, a self-cocking tensioner is fitted, and
that this will remain in the released position.
Working from the wheel arch or engine
compartment as necessary, and noting its
routing, slip the drivebelt off the remaining
pulleys and withdraw it.
26 Check all the pulleys, ensuring that their
grooves are clean, and removing all traces of oil and grease. Check that the tensioner
works properly, with strong spring pressure
being felt when its pulley is rotated clockwise,
and a smooth return to the limit of its travel
when released.
27
If the original drivebelt is being refitted,
use the marks or notes made on removal, to
ensure that it is installed to run in the same
direction as it was previously. To fit the
drivebelt, arrange it on the grooved pulleys so
that it is centred in their grooves, and not
overlapping their raised sides, and is routed
correctly. Start at the top, and work down to
finish at the crankshaft pulley; rotate the
tensioner pulley clockwise, slip the drivebelt
onto the crankshaft pulley, then release the
tensioner again.
28 Using a spanner applied to the crankshaft
pulley bolt, rotate the crankshaft through at
least two full turns clockwise to settle the
drivebelt on the pulleys, then check that
the drivebelt is properly installed.
29 Refit the auxiliary drivebelt cover (where
applicable) and roadwheel, then lower the
vehicle to the ground.
5 Underbonnet check for fluid leaks and hose condition
1
General
1High temperatures in the engine
compartment can cause the deterioration of
the rubber and plastic hoses used for engine,
accessory and emissions systems operation.
Periodic inspection should be made for
cracks, loose clamps, material hardening and
leaks.
2 Carefully check the large top and bottom
radiator hoses, along with the other smaller-
diameter cooling system hoses and metal
pipes; do not forget the heater hoses/pipes
which run from the engine to the bulkhead.
Inspect each hose along its entire length,
replacing any that is cracked, swollen or
shows signs of deterioration. Cracks may
become more apparent if the hose is
1•12Every 10 000 miles or 12 months
4.25 Automatic drivebelt tensioner - “polyvee” type drivebelt
Turn tensioner clockwise to release tension4.12b When the tension is correct, hold
the adjuster nut, and tighten the central bolt securely to lock the adjuster arm4.12a Rack-and-pinion type auxiliary drivebelt adjuster
A Adjuster arm
B Pinion (adjuster) nut
C Central (locking) bolt
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squeezed (see illustration) . If you are using
non-Ford specification antifreeze, and so
have to renew the coolant every two years or
so, it’s a good idea to renew the hoses at that
time, regardless of their apparent condition.
3 Make sure that all hose connections are
tight. A leak in the cooling system will usually
show up as white- or rust-coloured deposits
on the areas adjoining the leak; if the spring
clamps that are used to secure the hoses in
this system appear to be slackening, they
should be renewed to prevent the possibility
of leaks.
4 Some other hoses are secured to their
fittings with clamps. Where clamps are used,
check to be sure they haven’t lost their
tension, allowing the hose to leak. If clamps
aren’t used, make sure the hose has not
expanded and/or hardened where it slips over
the fitting, allowing it to leak.
5 Check all fluid reservoirs, filler caps, drain
plugs and fittings etc, looking for any signs
of leakage of oil, transmission and/or brake
hydraulic fluid, coolant and power steering
fluid. If the vehicle is regularly parked in the
same place, close inspection of the ground
underneath it will soon show any leaks. As
soon as a leak is detected, its source must
be traced and rectified. Where oil has been
leaking for some time, it is usually necessary
to use a steam cleaner, pressure washer or
similar, to clean away the accumulated
dirt, so that (when the engine is run again)
the exact source of the leak can be
identified.
Vacuum hoses
6 It’s quite common for vacuum hoses,
especially those in the emissions system, to be
colour-coded, or to be identified by coloured stripes moulded into them. Various systems
require hoses with different wall thicknesses,
collapse resistance and temperature
resistance. When renewing hoses, be sure the
new ones are made of the same material.
7
Often the only effective way to check a
hose is to remove it completely from the
vehicle. If more than one hose is removed, be
sure to label the hoses and fittings to ensure
correct installation.
8 When checking vacuum hoses, be sure to
include any plastic T-fittings in the check.
Inspect the fittings for cracks, and check the
hose where it fits over the fitting for distortion,
which could cause leakage.
9 A small piece of vacuum hose (quarter-inch
inside diameter) can be used as a
stethoscope to detect vacuum leaks. Hold
one end of the hose to your ear, and probe
around vacuum hoses and fittings, listening
for the “hissing” sound characteristic of a
vacuum leak. Warning: When probing with the
vacuum-hose stethoscope, be
very careful not to come into
contact with moving engine
components such as the auxiliary
drivebelt, radiator electric cooling fan, etc.
Fuel hoses
Warning: There are certain
precautions which must be
taken when inspecting or
servicing fuel system
components. Work in a well-ventilated
area, and do not allow open flames
(cigarettes, appliance pilot lights, etc.) or
bare light bulbs near the work area. Mop
up any spills immediately, and do not store
fuel-soaked rags where they could ignite.
10 Check all fuel hoses for deterioration and
chafing. Check especially for cracks in areas
where the hose bends, and also just before
fittings, such as where a hose attaches to the
fuel filter.
11 High-quality fuel line, usually identified by
the word “Fluoroelastomer” printed on the
hose, should be used for fuel line renewal.
Never, under any circumstances, use
unreinforced vacuum line, clear plastic tubing
or water hose for fuel lines.
12 Spring- type clamps are commonly used
on fuel lines. These clamps often lose their
tension over a period of time, and can be
“sprung” during removal. Replace all
spring- type clamps with screw clamps
whenever a hose is replaced.
Metal lines
13 Sections of metal piping are often used
for fuel line between the fuel filter and the
engine. Check carefully to be sure the piping
has not been bent or crimped, and that cracks
have not started in the line.
14 If a section of metal fuel line must be
renewed, only seamless steel piping should
be used, since copper and aluminium piping
don’t have the strength necessary to
withstand normal engine vibration. 15
Check the metal brake lines where they
enter the master cylinder and ABS hydraulic
unit (if used) for cracks in the lines or loose
fittings. Any sign of brake fluid leakage calls
for an immediate and thorough inspection of
the brake system.
6 Engine compartment wiring check
1
1With the vehicle parked on level ground,
apply the handbrake firmly and open the
bonnet. Using an inspection light or a small
electric torch, check all visible wiring within
and beneath the engine compartment.
2 What you are looking for is wiring that is
obviously damaged by chafing against sharp
edges, or against moving suspension/
transmission components and/or the auxiliary
drivebelt, by being trapped or crushed
between carelessly-refitted components, or
melted by being forced into contact with the
hot engine castings, coolant pipes, etc. In
almost all cases, damage of this sort is
caused in the first instance by incorrect
routing on reassembly, after previous work
has been carried out.
3 Depending on the extent of the problem,
damaged wiring may be repaired by rejoining
the break or splicing-in a new length of wire,
using solder to ensure a good connection,
and remaking the insulation with adhesive
insulating tape or heat-shrink tubing, as
appropriate. If the damage is extensive, given
the implications for the vehicle’s future
reliability, the best long-term answer may well
be to renew that entire section of the loom,
however expensive this may appear.
4 When the actual damage has been
repaired, ensure that the wiring loom is re-
routed correctly, so that it is clear of other
components, and not stretched or kinked, and
is secured out of harm’s way using the plastic
clips, guides and ties provided.
5 Check all electrical connectors, ensuring
that they are clean, securely fastened, and
that each is locked by its plastic tabs or wire
clip, as appropriate. If any connector shows
external signs of corrosion (accumulations of
white or green deposits, or streaks of “rust”),
or if any is thought to be dirty, it must be
unplugged and cleaned using electrical
contact cleaner. If the connector pins are
severely corroded, the connector must be
renewed; note that this may mean the renewal
of that entire section of the loom - see your
local Ford dealer for details.
6 If the cleaner completely removes the
corrosion to leave the connector in a
satisfactory condition, it would be wise to
pack the connector with a suitable material
which will exclude dirt and moisture,
preventing the corrosion from occurring
again; a Ford dealer may be able to
recommend a suitable product.
7 Check the condition of the battery
Every 10 000 miles or 12 months1•13
5.2 Hoses, like drivebelts, have a habit of
failing at the worst possible time - to
prevent the inconvenience of a blown radiator or heater hose, inspect them
carefully as shown here
1
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lubricant, together with dirt and water entry,
resulting in rapid deterioration of the balljoints
or steering gear.
3Check the power-assisted steering fluid
hoses (where fitted) for chafing or
deterioration, and the pipe and hose unions
for fluid leaks. Also check for signs of fluid
leakage under pressure from the steering gear
rubber gaiters, which would indicate failed
fluid seals within the steering gear.
4 Grasp the roadwheel at the 12 o’clock and
6 o’clock positions, and try to rock it. Very
slight free play may be felt, but if the
movement is appreciable, further investigation
is necessary to determine the source.
Continue rocking the wheel while an assistant
depresses the footbrake. If the movement is
now eliminated or significantly reduced, it is
likely that the hub bearings are at fault. If the
free play is still evident with the footbrake
depressed, then there is wear in the
suspension joints or mountings.
5 Now grasp the wheel at the 9 o’clock and 3
o’clock positions, and try to rock it as before.
Any movement felt now may again be caused
by wear in the hub bearings or the steering
track rod balljoints. If the outer track rod end
balljoint is worn, the visual movement will be
obvious. If the inner joint is suspect, it can be
felt by placing a hand over the rack-and-
pinion rubber gaiter, and gripping the track
rod. If the wheel is now rocked, movement will
be felt at the inner joint if wear has taken
place.
6 Using a large screwdriver or flat bar, check
for wear in the suspension mounting bushes
by levering between the relevant suspension
component and its attachment point. Some
movement is to be expected, as the
mountings are made of rubber, but excessive
wear should be obvious. Also check the
condition of any visible rubber bushes,
looking for splits, cracks or contamination of
the rubber.
7 With the vehicle standing on its wheels,
have an assistant turn the steering wheel
back-and-forth, about an eighth of a turn each
way. There should be very little, if any, lost
movement between the steering wheel and
roadwheels. If this is not the case, closely
observe the joints and mountings previously described, but in addition, check the steering
column universal joints for wear, and also
check the rack-and-pinion steering gear itself.
Rear suspension check
8
Chock the front wheels then jack up the
rear of the car and support it on axle stands
(see “Jacking and Vehicle Support” ). Remove
the rear roadwheels.
9 Check the rear hub bearings for wear, using
the method described for the front hub
bearings (paragraph 4).
10 Using a large screwdriver or flat bar,
check for wear in the suspension mounting
bushes by levering between the relevant
suspension component and its attachment
point. Some movement is to be expected, as
the mountings are made of rubber, but
excessive wear should be obvious. Check the
condition of the shock absorbers and their
bushes/mountings. On Van models, check the
leaves of the leaf springs for signs of cracking,
distortion, or other damage.
Roadwheel check and balancing
11 Periodically remove the roadwheels, and
clean any dirt or mud from the inside and
outside surfaces. Examine the wheel rims for
signs of rusting, corrosion or other damage.
Light alloy wheels are easily damaged by
“kerbing” whilst parking, and similarly, steel
wheels may become dented or buckled.
Renewal of the wheel is very often the only
course of remedial action possible.
12 The balance of each wheel and tyre
assembly should be maintained, not only to
avoid excessive tyre wear, but also to avoid
wear in the steering and suspension
components. Wheel imbalance is normally
signified by vibration through the vehicle’s
bodyshell, although in many cases it is
particularly noticeable through the steering
wheel. Conversely, it should be noted that
wear or damage in suspension or steering
components may cause excessive tyre wear.
Out-of-round or out-of-true tyres, damaged
wheels and wheel bearing wear/
maladjustment also fall into this category.
Balancing will not usually cure vibration
caused by such wear.
13 Wheel balancing may be carried out with
the wheel either on or off the vehicle. If balanced on the vehicle, ensure that the
wheel-to-hub relationship is marked in some
way prior to subsequent wheel removal, so
that it may be refitted in its original position.
11 Driveshaft rubber gaiter and
CV joint check
1
1The driveshaft rubber gaiters are very
important, because they prevent dirt, water
and foreign material from entering and
damaging the constant velocity (CV) joints.
External contamination can cause the gaiter
material to deteriorate prematurely, so it’s a
good idea to wash the gaiters with soap and
water occasionally.
2 With the vehicle raised and securely
supported on axle stands, turn the steering
onto full-lock, then slowly rotate each front
wheel in turn. Inspect the condition of the
outer constant velocity (CV) joint rubber
gaiters, squeezing the gaiters to open out the
folds. Check for signs of cracking, splits, or
deterioration of the rubber, which may allow
the escape of grease, and lead to the ingress
of water and grit into the joint (see
illustration) . Also check the security and
condition of the retaining clips. Repeat these
checks on the inner CV joints. If any damage
or deterioration is found, the gaiters should be
renewed as described in Chapter 8.
3 At the same time, check the general
condition of the outer CV joints themselves,
by first holding the driveshaft and attempting
to rotate the wheels. Any appreciable
movement in the CV joint indicates wear in the
joint, wear in the driveshaft splines, or a loose
driveshaft retaining nut. Repeat this check on
the inner joints, by holding the inner joint yoke
and attempting to rotate the driveshaft.
12 Exhaust system check
1
1 With the engine cold (at least three hours
after the vehicle has been driven), check the
complete exhaust system, from its starting
1•16Every 10 000 miles or 12 months
11.2 Check the driveshaft gaiters by hand for cracks and/or leaking grease10.2c Check the condition of the steering rack gaiters10.2b Check the condition of the lowerarm balljoint dust cover (arrowed)
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7Unscrew and remove the crankshaft pulley
retaining bolt and its washer. Withdraw the
pulley from the front end of the crankshaft
(see illustration) . If necessary, lever it free
using a pair of diagonally-opposed levers
positioned behind the pulley.
Refitting
8 Refit in the reverse order of removal. Tighten
the pulley retaining bolt to the specified torque
setting, and refer to Chapter 1 for details on
refitting the auxiliary drivebelt.
9 On completion, reconnect the battery
negative lead.
7 Timing belt covers -
removal and refitting
1
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Where applicable, undo the two bolts
securing the power steering fluid pipe support
clips and ease the pipe away from the upper
cover.
3 Undo the two retaining bolts and remove
the upper timing belt cover (see illustration).
4 Refer to the previous Section for details,
and remove the crankshaft pulley.
5 Unscrew the two bolts securing the lower
timing belt cover, and remove it (see
illustration) .
Refitting
6Refit in the reverse order of removal.
Tighten the cover retaining bolts to the
specified torque wrench setting.
7 On completion, reconnect the battery earth
lead.
8 Timing belt - removal, refitting
and adjustment
3
Removal
1 Referring to the previous Sections for
details, remove the rocker cover, the
crankshaft pulley and the timing belt covers.
2 Check that the crankshaft is set with the
No 1 piston at TDC (on its compression
stroke) before proceeding. If necessary, refer
to Section 3 for further details.
3 To check the timing belt for correct
adjustment, proceed as described in
paragraph 12 below. To remove the belt,
proceed as follows.
4 Loosen off the two bolts securing the timing
belt tensioner. Using a large screwdriver, prise
the tensioner to one side to release the timing
belt tension. Secure the tensioner in this
position by retightening the bolts (see
illustration) .
5 If the original timing belt is to be refitted,
mark it for direction of travel and also the
exact tooth engagement positions on all sprockets. Slip the belt from the camshaft,
water pump and crankshaft sprockets
(see
illustration) . Whilst the timing belt is
removed, avoid any excessive movement of
the sprockets, otherwise the piston crowns
and valves may come into contact and be
damaged.
6 If the belt is being removed for reasons
other than routine renewal, check it carefully
for any signs of uneven wear, splitting, cracks
(especially at the roots of the belt teeth) or
contamination with oil or coolant. Renew the
belt if there is the slightest doubt about its
condition. As a safety measure, the belt must
be renewed as a matter of course at the
intervals given in Chapter 1; if its history is
unknown, the belt should be renewed
irrespective of its apparent condition
whenever the engine is overhauled.
Refitting and adjustment
7 Before refitting the belt, check that the
crankshaft is still at the TDC position, with the
small projection on the belt sprocket front
flange aligned with the TDC mark on the oil
pump housing (see illustration) . Also ensure
that the camshaft sprocket is set with its TDC
pointer aligned with the corresponding timing
mark on the cylinder head (see illus-
tration 3.6b) . If necessary, adjust the
sprockets slightly. As previously mentioned,
avoid any excessive movement of the
sprockets whilst the belt is removed.
8 Engage the timing belt teeth with the teeth
CVH and PTE engine in-car repair procedures 2B•5
7.5 Lower timing belt cover removal7.3 Upper timing belt cover removal6.7 Crankshaft pulley removal
8.7 Sprocket and oil pump housing
TDC marks in alignment8.5 Timing belt removal8.4 Timing belt tensioner retaining bolts (arrowed)
2B
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fitted with three piston rings: two
compression rings and an oil control ring.
After manufacture, the cylinder bores and
piston skirts are measured and classified into
three grades, which must be carefully
matched together, to ensure the correct
piston/cylinder clearance; no oversizes are
available to permit reboring.The inlet and exhaust valves are each
closed by coil springs; they operate in guides
which are shrink-fitted into the cylinder head,
as are the valve seat inserts. Both camshafts are driven by the same
toothed timing belt, each operating eight
valves via self-adjusting hydraulic tappets,
thus eliminating the need for routine checking
and adjustment of the valve clearances. Each
camshaft rotates in five bearings that are line-
bored directly in the cylinder head and the
(bolted-on) bearing caps; this means that the
bearing caps are not available separately from
the cylinder head, and must not be
interchanged with caps from another engine. The water pump is bolted to the right-hand
end of the cylinder block, inboard of the
timing belt, and is driven with the power
steering pump and alternator by a flat
“polyvee”-type auxiliary drivebelt from the
crankshaft pulley.
When working on this engine, note that
Torx-type (both male and female heads) and
hexagon socket (Allen head) fasteners are
widely used; a good selection of bits, with the
necessary adapters, will be required, so that
these can be unscrewed without damage and,
on reassembly, tightened to the torque
wrench settings specified. Lubrication is by means of an eccentric-
rotor trochoidal pump, which is mounted on
the crankshaft right-hand end, and draws oil
through a strainer located in the sump. The
pump forces oil through an externally-
mounted full-flow cartridge-type filter - on
some versions of the engine, an oil cooler is
fitted to the oil filter mounting, so that clean oil
entering the engine’s galleries is cooled by the
main engine cooling system.
Repair operations possible with
the engine in the car
The following work can be carried out with
the engine in the car:
a) Compression pressure - testing.
b) Cylinder head cover - removal and
refitting.
c) Timing belt covers - removal and refitting.
d) Timing belt - renewal.
e) Timing belt tensioner and sprockets - removal and refitting.
f) Camshaft oil seals - renewal.
g) Camshafts and hydraulic tappets - removal and refitting.
h) Cylinder head - removal and refitting.
i) Cylinder head and pistons - decarbonising.
j) Sump - removal and refitting.
k) Crankshaft oil seals - renewal.
l) Oil pump - removal and refitting. m)
Flywheel/driveplate - removal and
refitting.
n) Engine/transmission mountings - removal and refitting.
Note: It is possible to remove the pistons and
connecting rods (after removing the cylinder
head and sump) without removing the engine.
However, this is not recommended. Work of
this nature is more easily and thoroughly
completed with the engine on the bench, as
described in Chapter 2D.
2 Compression test -
description and interpretation
2
Refer to Section 2 in Part A of this Chapter.
3 Top Dead Centre (TDC) for No 1 piston - locating
2
1Top dead centre (TDC) is the highest point
of the cylinder that each piston reaches as the
crankshaft turns. Each piston reaches its TDC
position at the end of its compression stroke,
and then again at the end of its exhaust
stroke. For the purpose of engine timing, TDC
on the compression stroke for No 1 piston is
used. No 1 cylinder is at the timing belt end of
the engine. Proceed as follows.
2 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
3 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and Vehicle Support” ). Remove
the right-hand roadwheel.
4 Remove the auxiliary drivebelt cover (see
Chapter 1) to expose the crankshaft pulley
and timing marks.
5 Fit a spanner onto the crankshaft pulley
bolt, and turn the crankshaft in its normal
direction of rotation (clockwise, viewed from
the pulley end). 6
Note the two pairs of notches in the inner
and outer rims of the crankshaft pulley. In the
normal direction of crankshaft rotation the first
pair of notches are irrelevant to the vehicles
covered in this manual, while the second pair
indicate TDC when aligned with the rear edge
of the raised mark on the sump. Rotate the
crankshaft clockwise until the second pair of
notches align with the edge of the sump mark;
use a straight edge extended out from the
sump if greater accuracy is required (see
illustrations) .
7 Nos 1 and 4 cylinders are now at TDC, one
of them on the compression stroke. Remove
the oil filler cap; if No 4 cylinder exhaust cam
lobe is pointing to the rear of the vehicle and
slightly downwards, it is No 1 cylinder that is
correctly positioned. If the lobe is pointing
horizontally forwards, rotate the crankshaft
one full turn (360º) clockwise until the pulley
notches align again, and the lobe is pointing
to the rear and slightly down. No 1 cylinder
will then be at TDC on the compression
stroke.
8 Once No 1 cylinder has been positioned at
TDC on the compression stroke, TDC for any
of the other cylinders can then be located by
rotating the crankshaft clockwise 180º at a
time and following the firing order (see
Specifications).
9 With the engine set at No 1 piston on TDC
compression, refit the drivebelt cover and the
roadwheel, then lower the vehicle and refit the
spark plugs.
4 Cylinder head cover -
removal and refitting
1
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Remove the air inlet components as
necessary for access as described in the
Chapter 4D.
3 Disconnect the accelerator cable from the
throttle linkage as described in Chapter 4D.
4 On models equipped with power steering,
release the high pressure fluid pipe from the
Zetec engine in-car repair procedures 2C•3
3.6b . . . use a straight edge extended out from the sump (arrowed) if greater
accuracy is required3.6a Do not use crankshaft pulley’s first
pair of notches “A” - align second pair of
notches “B” with raised rib on sump “C” . . .
2C
1595Ford Fiesta Remake
Turning the engine will be
easier if the spark plugs are
removed first - see Chapter 1.
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clamp brackets and disconnect the pipe joint
union over the top of the cylinder head cover.
Place absorbent rags beneath the union as it
is disconnected to soak up escaping fluid and
plug the open unions to prevent dirt entry and
further fluid loss. Move the pipe(s) clear just
sufficiently to allow removal of the cylinder
head cover.
5Remove the timing belt upper cover (see
Section 7).
6 Disconnect the crankcase breather hose
from the cylinder head cover union (see
illustration) .
7 Unplug the HT leads from the spark plugs
and withdraw them, unclipping the leads from
the cover.
8 Working progressively, unscrew the
cylinder head cover retaining bolts, noting the
spacer sleeve and rubber seal at each, then
withdraw the cover (see illustration).
9 Discard the cover gasket; this mustbe
renewed whenever it is disturbed. Check that
the sealing faces are undamaged, and that the
rubber seal at each retaining bolt is
serviceable; renew any worn or damaged
seals.
Refitting
10 On refitting, clean the cover and cylinder
head gasket faces carefully, then fit a new
gasket to the cover, ensuring that it locates
correctly in the cover grooves (see illustration).
11 Refit the cover to the cylinder head, then
insert the rubber seal and spacer sleeve at
each bolt location (see illustration). Start allbolts finger-tight, ensuring that the gasket
remains seated in its groove.
12
Working in a diagonal sequence from the
centre outwards, and in two stages (see
Specifications), tighten the cover bolts to the
specified torque wrench setting.
13 Refit the HT leads, clipping them into
place so that they are correctly routed; each is
numbered, and can also be identified by the
numbering on its respective coil terminal.
14 Reconnect the crankcase breather hose,
and refit the timing belt upper cover.
Reconnect and adjust the accelerator cable,
then refit the air inlet components (see
Chapter 4B).
15 On models with power steering,
reconnect the high pressure fluid pipe then
bleed the system as described in Chapter 10.
5 Valve clearances -
general information
Refer to Section 5 in Part B of this Chapter.
6 Crankshaft pulley -
removal and refitting
1
Removal
1 Remove the auxiliary drivebelt - either
remove the drivebelt completely, or just secure it clear of the crankshaft pulley,
depending on the work to be carried out (see
Chapter 1).
2
If necessary, rotate the crankshaft until the
timing marks align (see Section 3).
3 The crankshaft must now be locked to
prevent its rotation while the pulley bolt is
unscrewed. To do this, remove the starter
motor (Chapter 5A) and lock the starter ring
gear teeth using a suitable screwdriver.
4 It should now just be possible to reach
between the crankshaft pulley and the body
side member to undo and remove the pulley
bolt and withdraw the pulley. However, if
additional working clearance is needed,
proceed as follows.
5 If not already done, chock the rear wheels
then jack up the front of the car and support it
on axle stands (see “Jacking and Vehicle
Support” ). Remove the front right-hand
roadwheel.
6 Support the weight of the
engine/transmission using a trolley jack, with
a wooden spacer to prevent damage to the
sump.
7 From above, unscrew the three bolts
securing the engine’s front right-hand (Y-
shaped) mounting bracket to the alternator
mounting bracket. Unfasten the engine’s rear
right-hand 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
8 With the engine’s right-hand mountings
unfastened from the body, lower the
engine/transmission on the jack until a socket
spanner can be fitted to the crankshaft pulley
bolt.
9 With the starter ring gear teeth locked,
unscrew the crankshaft pulley bolt and
withdraw the pulley (see illustration).
Refitting
10Refitting is the reverse of the removal
procedure; ensure that the pulley’s keyway is
aligned with the crankshaft’s locating key, and
tighten the pulley bolt to the specified torque
wrench setting. If the engine mountings were
disturbed, use the jack to adjust the height of
the engine/transmission until the bolts (and
nut, with washer) can be refitted and screwed
2C•4 Zetec engine in-car repair procedures
6.9 Unscrew pulley bolt to release
crankshaft pulley4.11 Ensure rubber seal is fitted to eachcover bolt spacer, as shown
4.10 Ensure gasket is located correctly in cover groove4.8 Removing cylinder head cover
1595Ford Fiesta Remake
4.6 Disconnecting crankcase breather
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25As the cylinder head is such a heavy and
awkward assembly to refit with manifolds, it is
helpful to make up a pair of guide studs from
two 10 mm (thread size) studs approximately
90 mm long, with a screwdriver slot cut in one
end - two old cylinder head bolts with their
heads cut off would make a good starting
point. Screw these guide studs, screwdriver
slot upwards to permit removal, into the bolt
holes at diagonally-opposite corners of the
cylinder block surface (or into those where the
locating dowels are fitted); ensure that
approximately 70 mm of stud protrudes
above the gasket.
26 Refit the cylinder head, sliding it down the
guide studs (if used) and locating it on the
dowels. Unscrew the guide studs (if used)
when the head is in place.
27 Fit the new cylinder head bolts dry ( do not
oil their threads); carefully enter each into its
hole and screw it in, by hand only, until finger-
tight.
28 Working progressively and in the
sequence shown, use first a torque wrench,
then an ordinary socket extension bar and an
angle gauge, to tighten the cylinder head bolts
in the stages given in the Specifications
Section of this Chapter (see illustrations).
Note: Once tightened correctly, following this
procedure, the cylinder head bolts do not
require check-tightening, and must notbe re-
torqued.
29 Refit the hydraulic tappets (if removed),
the camshafts, their oil seals and sprockets
(see Sections 11, 10 and 9, as appropriate).
Temporarily refit the crankshaft pulley, and
rotate the crankshaft clockwise to return the
pulley notches to the TDC position described
in Section 3.
30 Refit the earth lead to the lifting eye
31 Refit the timing belt and covers, checking
the camshaft alignment (valve timing) and
setting the timing belt tension, as described in
Section 8.
32 The remainder of reassembly is the
reverse of the removal procedure, noting the
following points:
a) Tighten all fasteners to the torque wrench settings specified.
b) Refill the cooling system, and top-up the engine oil (see Chapter 1 and “Weekly
Checks”).
c) Check all disturbed joints for signs of oil or coolant leakage, once the engine has
been restarted and warmed-up to normal
operating temperature.
d) If the power steering hoses where
disconnected, bleed the system as
described in Chapter 10 after
reconnection.
13 Sump -
removal and refitting
2
Removal
Note: The full procedure outlined below must
be followed, so that the mating surfaces can
be cleaned and prepared to achieve an oil-
tight joint on reassembly, and so that the
sump can be aligned correctly; depending on
your skill and experience, and the tools and
facilities available, it may be that this task can
be carried out only with the engine removed
from the vehicle. Note that the sump gasket
must be renewed whenever it is disturbed.
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Drain the engine oil, then clean and refit the
engine oil drain plug, tightening it to the
specified torque wrench setting. Although not
strictly necessary as part of the dismantling
procedure, owners are advised to remove and
discard the oil filter, so that it can be renewed
with the oil (see Chapter 1).
3 Refer to Chapter 5A and remove the starter
motor.
4 Remove the auxiliary drivebelt cover (see
Chapter 1).
5 Unplug the electrical connector(s) to
disconnect the oxygen sensor.
6 Unscrew the nuts to disconnect the
exhaust system front downpipe from the
manifold, then either unhook all the system’s
rubber mountings and withdraw the complete
exhaust system from under the vehicle, or
remove only the downpipe/catalytic converter
(see Chapter 4E for details). 7
Unscrew the sump-to-transmission bolts,
also any securing the engine/transmission
lower adapter plate.
8 Progressively unscrew the sump retaining
bolts. Break the joint by striking the sump with
the palm of the hand, then lower the sump
and withdraw it with the engine/transmission
lower adapter plate (where fitted); note the
presence of any shims between the sump and
transmission.
9 Remove and discard the sump gasket; this
must be renewed as a matter of course
whenever it is disturbed.
10 While the sump is removed, take the
opportunity to remove the oil pump pick-
up/strainer pipe and to clean it (see Sec-
tion 14).Refitting
11 On reassembly, thoroughly clean and
degrease the mating surfaces of the cylinder
block/crankcase and sump, then use a clean
rag to wipe out the sump and the engine’s
interior. If the oil pump pick-up/strainer pipe
was removed, fit a new gasket and refit the
pipe, tightening its screws to the specified
torque wrench setting. Fit the new gasket to
the sump mating surface so that the gasket
fits into the sump groove (see illustration).
12 If the sump is being refitted with the
engine/transmission still connected and in the
vehicle, proceed as follows:
a) Check that the mating surfaces of the sump, the cylinder block/crankcase and
2C•12 Zetec engine in-car repair procedures
13.11 Ensure gasket is located correctly in sump groove
12.28c . . . and to Stage 3 using angle gauge12.28b Tightening cylinder head bolts
(Stages 1 and 2) using torque wrench . . .12.28a Cylinder head bolt tightening sequence
Note: View from rear of vehicle
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