auxiliary battery FORD MONDEO 1993 Service Repair Manual

Chapter 1 Routine maintenance and servicing
Air conditioning system check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Air filter element renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Automatic transmission fluid level check . . . . . . . . . . . . . . . . . . . . . 7
Automatic transmission linkage lubrication . . . . . . . . . . . . . . . . . . . 18
Auxiliary drivebelt check and renewal . . . . . . . . . . . . . . . . . . . . . . . . 11
Battery check, maintenance and charging . . . . . . . . . . . . . . . . . . . . 9
Brake check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Brake fluid renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Clutch pedal adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Coolant renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 28
Door and bonnet check and lubrication . . . . . . . . . . . . . . . . . . . . . . 24
Driveshaft rubber gaiter and CV joint check . . . . . . . . . . . . . . . . . . . 20
Electrical system check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Engine compartment wiring check . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Engine oil and filter change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Exhaust system check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fluid level checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Fuel filter renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Idle speed and mixture check and adjustment . . . . . . See Chapter 4Ignition timing check . . . . . . . . . . . . . . . . . . . . . . . . . . See Chapter 5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Manual transmission oil level check . . . . . . . . . . . . . . . . . . . . . . . . . 16
Positive Crankcase Ventilation (PCV) system check
and filter cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Power steering fluid level check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Road test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Roadwheel nut tightness check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Seat belt check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Spark plug renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . See end of Chapter
Steering, suspension and roadwheel check . . . . . . . . . . . . . . . . . . . 19
Timing belt renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Tyre and tyre pressure checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Underbody and fuel/brake line check . . . . . . . . . . . . . . . . . . . . . . . . 22
Underbonnet check for fluid leaks and hose condition . . . . . . . . . . 12
Ventilation system pollen filter renewal . . . . . . . . . . . . . . . . . . . . . . . 27
Windscreen/tailgate washer system and wiper blade check . . . . . . 6
1•1
Easy,suitable for
novice with little
experienceFairly easy,suitable
for beginner with
some experienceFairly difficult,suitable
for competent DIY
mechanicDifficult,suitable for
experienced DIY
mechanicVery difficult,
suitable for expert DIY
or professional
Degrees of difficulty Contents
1
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Ford Mondeo maintenance schedule
1•3
1
Maintenance schedule
The manufacturer’s recommended maintenance schedule for these
vehicles is as described below - note that the schedule starts from the
vehicle’s date of registration. These are the minimum maintenance
intervals recommended by the factory for Mondeos driven daily, but
subjected only to “normal” use. If you wish to keep your vehicle in
peak condition at all times, you may wish to perform some of these
procedures even more often. Because frequent maintenance
enhances the efficiency, performance and resale value of your vehicle,
we encourage you to do so. If your usage is not “normal”, shorter
intervals are also recommended - the most important examples of
these are noted in the schedule. These shorter intervals apply
particularly if you drive in dusty areas, tow a caravan or trailer, sit with
the engine idling or drive at low speeds for extended periods (ie, in
heavy traffic), or drive for short distances (less than four miles) in
below-freezing temperatures.
When your vehicle is new, it should be serviced by a Ford dealer
service department to protect the factory warranty. In many cases, the
initial maintenance check is done at no cost to the owner. Note that
this first free service (carried out by the selling dealer 1500 miles or 3
months after delivery), although an important check for a new vehicle,
is not part of the regular maintenance schedule, and is therefore not
mentioned here.
Weekly checks
m mCheck the engine oil level, and top-up if necessary
(Section 3)
m mCheck the brake fluid level, and top-up if necessary
(Section 3). If repeated topping-up is required, check the
system for leaks or damage at the earliest possible
opportunity (Sections 12 and 22)
m mCheck the windscreen/tailgate washer fluid level, and top-
up if necessary (Section 3)
m mCheck the tyre pressures, including the spare (Section 4)
m mVisually check the tyres for excessive tread wear, or
damage (Section 4)
m mCheck the operation of all (exterior and interior) lights and
the horn, wipers and windscreen/tailgate washer system
(Sections 6 and 8). Renew any blown bulbs (Chapter 12),
and clean the lenses of all exterior lights
Monthly checks
m mCheck the coolant level, and top-up if necessary (Sec-
tion 3)
m mCheck the battery electrolyte level, where applicable
(Section 3)
m mCheck the power steering fluid level, and top-up if
necessary (Section 5)
m mVisually check all reservoirs, hoses and pipes for leakage
(Section 12)
m mCheck the operation of the air conditioning system
(Section 14)
m mCheck the operation of the handbrake (Section 23)
m mCheck the aim of the windscreen/tailgate/headlight
washer jets, correcting them if required (Section 6)
m mCheck the condition of the wiper blades, renewing them if
worn or no longer effective - note that the manufacturer
recommends renewing the blades as a safety precaution,
irrespective of their apparent condition, at least once a
year (Section 6)
Every 10 000 miles or 12 months,
whichever occurs first
Note:If the vehicle is used regularly for very short (less than
10 miles), stop/go journeys, the oil and filter should be renewed
between services (ie, every 5000 miles/6 months).
m mCheck the electrical system (Section 8)
m mCheck the battery (Section 9)
m mCheck the seat belts (Section 10)
m mCheck the auxiliary drivebelt (Section 11)
m mCheck for fluid leaks and hose condition (Section 12)
m mCheck the condition of all wiring (Section 13)
m mCheck all air conditioning components (Section 14)
m mChange the engine oil and filter (Section 15)
m mCheck the manual transmission oil level (Section 16)
m mCheck the adjustment of the clutch pedal (Section 17)
m mLubricate the automatic transmission linkage (Section 18)
m mCheck the steering, suspension and wheels (Section 19)
m mCheck the driveshaft gaiters and CV joints (Section 20)
m mCheck the exhaust system (Section 21)
m mCheck the underbody, and all fuel/brake lines (Section 22)
m mCheck the brake system (Section 23)
m mCheck and lubricate the doors and bonnet (Section 24)
m mCheck the security of all roadwheel nuts (Section 25)
m mRoad test (Section 26). Check the level of the automatic
transmission fluid with the engine still hot, after the road
test (Section 7)
Every 20 000 miles or 2 years,
whichever occurs first
Carry out all operations listed above, plus the following:
m mRenew the ventilation system pollen filter (Section 27)
m mRenew the coolant (Sections 2 and 28)
Every 30 000 miles or 3 years,
whichever occurs first
Carry out all operations listed above, plus the following:
m mRenew the air filter element (Section 29). Note that this
task must be carried out at more frequent intervals if the
vehicle is used in dusty or polluted conditions
m mCheck the Positive Crankcase Ventilation (PCV) system,
and clean the filter (Section 30)
m mRenew the spark plugs (Section 31)
Every 60 000 miles
Carry out all operations listed above, plus the following:
m
mRenew the timing belt (Section 32)
m mRenew the fuel filter (Section 33)
Every 3 years
(regardless of mileage)
m mRenew the brake fluid (Section 34)
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1•4
Engine compartment components
1 Spark plugs (Section 31)
2 Engine oil filler cap (Section 3)
3 Brake fluid reservoir (Section 3)
4 Auxiliary fusebox (Chapter 12)
5 Air cleaner assembly (Section 29)
6 Battery (Section 9)
7 Cooling system expansion tank
(Section 28)
8 Ventilation system pollen filter - under
cowl grille panel (Section 27)
9 Air intake resonator (Chapter 4)
10 Radiator top hose (Section 12)
11 Cooling system expansion tank filler cap
(Section 3)
12 Air intake plenum chamber (Chapter 4)
13 Engine oil dipstick (Section 3)
14 Vehicle Identification Number (VIN) plate
15 Windscreen/tailgate washer fluid reservoir
(Section 3)
16 Auxiliary drivebelt (Section 11)
17 Power steering fluid reservoir (Section 5)
Front underbody view
1 Radiator bottom hose (Section 12)
2 Exhaust gas oxygen sensor (Chapter 6)
3 Braking system, fuel and emission control
system lines (Section 22)
4 Front disc brake (Section 23)
5 Manual transmission drain plug
(Chapter 7, Part A)
6 Front suspension subframe (Chapter 2,
Part B)
7 Manual transmission filler/level plug
(Section 16)
8 Radiator undershield (Section 28)
9 Catalytic converter (Section 21)
10 Exhaust system rubber mountings
(Section 21)
11 Engine oil drain plug (Section 15)
12 Engine oil filter (Section 15)
Maintenance procedures
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amperage charger, but don’t use one rated
more than 1/10th the amp/hour rating of the
battery (ie no more than 5 amps, typically).
Rapid boost charges that claim to restore the
power of the battery in one to two hours are
hardest on the battery, and can damage
batteries not in good condition. This type of
charging should only be used in emergency
situations.
14The average time necessary to charge a
battery should be listed in the instructions that
come with the charger. As a general rule, a
trickle charger will charge a battery in 12 to
16 hours.
1Check the seat belts for satisfactory
operation and condition. Inspect the webbing
for fraying and cuts. Check that they retract
smoothly and without binding into their reels.
2Check that the seat belt mounting bolts are
tight, and if necessary tighten them to the
specified torque wrench setting.
General
1The auxiliary drivebelt is of the flat, multi-
ribbed (or “polyvee”) type, and is located on
the right-hand end of the engine. It drives the
alternator, water pump, power steering pump
and (when fitted) the air conditioning
compressor from the engine’s crankshaft
pulley.
2The 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 anddeteriorate as they get older. They must,
therefore, be regularly inspected.
Check
3With the engine switched off, open and
support the bonnet, then locate the auxiliary
drivebelt on the right-hand end of the engine,
under the engine right-hand mounting
bracket. (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 remove the
auxiliary drivebelt cover (two fasteners) from
inside the wheel arch (see illustration).
4Using an inspection light or a small electric
torch, and rotating the engine when necessary
with a spanner applied to the crankshaft
pulley bolt, check the whole length of the
drivebelt 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 should be inspected, which
means you will have to twist the drivebelt to
check the underside. Use your fingers to feel
the drivebelt where you can’t see it. If you are
in any doubt as to the condition of the
drivebelt, renew it (go to paragraph 7).
Drivebelt tension
5The auxiliary drivebelt is tensioned by an
automatic tensioner; regular checks are not
required, and manual “adjustment” is not
possible.
6If 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 the tensioner (two Torx-type
screws accessible from underneath, via the
wheel arch) from the alternator mounting
bracket (see illustration). On fitting the new
tensioner, ensure it is aligned correctly on its
mountings, and tighten the screws to the
specified torque wrench setting.
Renewal
7Open 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
cover (two fasteners) from inside the wheel
arch.
8If 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.
9Reaching up between the body and the
engine (above and to the rear of the
crankshaft pulley), 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). Working from the
wheel arch or engine compartment as
necessary, and noting its routing, slip the
drivebelt off the remaining pulleys and
withdraw it.
10Check 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
11 Auxiliary drivebelt check and
renewal
10 Seat belt check
1•13
1
11.9 Rotate the tensioner pulley clockwise
to release its pressure on the drivebelt,
then slip the drivebelt off the crankshaft
pulley
11.3 Removing the auxiliary drivebelt
cover - it is secured by a fastener at each
end (arrowed) - from inside the right-hand
front wheel arch
11.4 Check the auxiliary drivebelt for signs
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
11.6 The auxiliary drivebelt is tensioned by
an automatic tensioner; Torx screws
(arrowed) secure it to alternator mounting
bracket
Every 10 000 miles
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5Check 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; ignore
the puddle of water which will be left if the air
conditioning system is in use. 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 the
exact source of the leak can be identified.
Vacuum hoses
6It’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.
7Often 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.
8When 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.
9A 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.
10Check 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.
11High-quality fuel line, usually identified by
the word “Fluoroelastomer” printed on thehose, should be used for fuel line renewal.
Never, under any circumstances, use
unreinforced vacuum line, clear plastic tubing
or water hose for fuel lines.
12Spring-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
13Sections 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.
14If 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.
15Check 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.
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.
2What 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.
3Depending 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.
4When 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.
5Check all electrical connectors, ensuringthat 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.
6If 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.
7Check the condition of the battery
connections - remake the connections or
renew the leads if a fault is found (see Chap-
ter 5). Use the same techniques to ensure that
all earth points in the engine compartment
provide good electrical contact through clean,
metal-to-metal joints, and that all are securely
fastened. (In addition to the earth connection
at the engine lifting eye, and that from the
transmission to the body/battery, there are
one or two earth points behind each headlight
assembly, and one below the power steering
fluid reservoir.)
8Refer to Section 31 for details of spark plug
(HT) lead checks.
Warning: The air conditioning
system is under high pressure.
Do not loosen any fittings or
remove any components until
after the system has been discharged. Air
conditioning refrigerant must be properly
discharged into an approved type of
container, at a dealer service department
or an automotive air conditioning repair
facility capable of handling R134a
refrigerant. Always wear eye protection
when disconnecting air conditioning
system fittings.
1The following maintenance checks should
be performed on a regular basis, to ensure
that the air conditioner continues to operate at
peak efficiency:
(a) Check the auxiliary drivebelt. If it’s worn
or deteriorated, renew it (see Section 11).
(b) Check the system hoses. Look for cracks,
bubbles, hard spots and deterioration.
Inspect the hoses and all fittings for oil
bubbles and seepage. If there’s any
evidence of wear, damage or leaks, renew
the hose(s).
(c) Inspect the condenser fins for leaves,
insects and other debris. Use a “fin
14 Air conditioning system
check
13 Engine compartment wiring
check
1•15
1
Every 10 000 miles
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specifications were available from Ford, but a
typical reading would be in excess of 12 bars.
All cylinders should produce very similar
pressures; any difference greater than 10%
indicates the existence of a fault. Note that the
compression should build up quickly in a
healthy engine; low compression on the first
stroke, followed by gradually-increasing
pressure on successive strokes, indicates worn
piston rings. A low compression reading on the
first stroke, which does not build up during
successive strokes, indicates leaking valves or a
blown head gasket (a cracked head could also
be the cause). Deposits on the undersides of the
valve heads can also cause low compression.
8If the pressure in any cylinder is
considerably lower than the others, introduce
a teaspoonful of clean oil into that cylinder
through its spark plug hole, and repeat the
test.
9If the addition of oil temporarily improves
the compression pressure, this indicates that
bore or piston wear is responsible for the
pressure loss. No improvement suggests that
leaking or burnt valves, or a blown head
gasket, may be to blame.
10A low reading from two adjacent cylinders
is almost certainly due to the head gasket
having blown between them; the presence of
coolant in the engine oil will confirm this.
11If one cylinder is about 20 percent lower
than the others and the engine has a slightly
rough idle, a worn camshaft lobe or faulty
hydraulic tappet could be the cause.
12If the compression is unusually high, the
combustion chambers are probably coated
with carbon deposits. If this is the case, the
cylinder head should be removed and
decarbonised.
13On completion of the test, refit the spark
plugs, then reconnect the ignition system and
fuel pump.
General
1Top Dead Centre (TDC) is the highest point
in its travel up-and-down its cylinder bore
that each piston reaches as the crankshaftrotates. While each piston reaches TDC both
at the top of the compression stroke and
again at the top of the exhaust stroke, for the
purpose of timing the engine, TDC refers to
the piston position (usually No 1 piston) at the
top of its compression stroke.
2It is useful for several servicing procedures
to be able to position the engine at TDC.
3No 1 piston and cylinder are at the right-
hand (timing belt) end of the engine (right-
and left-hand are always quoted as seen from
the driver’s seat). Note that the crankshaft
rotates clockwise when viewed from the
right-hand side of the vehicle.
Locating TDC
4Remove all the spark plugs (Chapter 1).
5Disconnect both battery leads - see
Chapter 5, Section 1 - unless the starter
motor is to be used to turn the engine.
6Apply the handbrake and ensure that the
transmission is in neutral, then jack up the
front right-hand side of the vehicle and
support on an axle stand. Remove the
roadwheel.
7Remove the auxiliary drivebelt cover (see
Chapter 1) to expose the crankshaft pulley
and timing marks.
8It is best to rotate the crankshaft using a
spanner applied to the crankshaft pulley bolt;
however, it is possible also to use the starter
motor (switched on either by an assistant
using the ignition key, or by using a remote
starter switch) to bring the engine close to
TDC, then finish with a spanner. If the starter
is used, be sure to disconnect the battery
leads immediately it is no longer required.
9Note the two pairs of notches in the inner
and outer rims of the crankshaft pulley. In the
normal direction of crankshaft rotation
(clockwise, seen from the right-hand side of the
vehicle) 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).10Nos 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 (360°) 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.
11Once 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 180° at a
time and following the firing order (see
Specifications).
12An alternative method of locating TDC is
to remove the cylinder head cover (see
Section 5) and to rotate the crankshaft
(clockwise, as described in paragraph 8
above) until the inlet valves for the cylinder
concerned have opened and just closed
again. Insert a length of wooden dowel
(approximately 150 mm/6 in long) or similar
into the spark plug hole until it rests on the
piston crown, and slowly further rotate the
crankshaft (taking care not to allow the dowel
to be trapped in the cylinder) until the dowel
stops rising - the piston is now at the top of
its compression stroke, and the dowel can be
removed.
13There is a “dead” area around TDC (as
the piston stops rising, pauses and then
begins to descend) which makes difficult the
exact location of TDC by this method; if
accuracy is required, either establish carefully
the exact mid-point of the dead area, or refer
to the timing marks (paragraph 9 above).
1Unplug the two electrical connectors and
disconnect the vacuum hose (where fitted),
then remove the air cleaner assembly cover
with the air mass meter, the resonator and the
plenum chamber (see Chapter 4).
2Disconnect the accelerator cable from the
5 Cylinder head cover-
removal and refitting
4 Top Dead Centre (TDC) for
No 1 piston - locating
2A•6 In-car engine repair procedures
4.9A Do not use crankshaft pulley’s first
pair of notches “A” - align second pair of
notches “B” with raised rib on sump “C” . . .4.9B . . . using a straight edge extended
out from the sump (arrowed) if greater
accuracy is required5.4 Disconnecting crankcase breather
hose from cylinder head cover union
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1With the vehicle parked on firm level
ground, open the bonnet and disconnect the
battery negative (earth) lead - see Chapter 5,
Section 1 (see illustration).
2Unbolt the power steering high-pressure
pipe from the cylinder head rear support
plate/engine lifting eye, and from the front
support plate/pump bracket.
3Unscrew the six nuts securing the
engine/transmission right-hand mounting
bracket, then withdraw the bracket.
4Slacken the water pump pulley bolts.5Remove the cylinder head cover (see
Section 5).
6Remove the spark plugs, covering their
holes with clean rag, to prevent dirt or other
foreign bodies from dropping in (see Chap-
ter 1).
7Remove the auxiliary drivebelt (see Chap-
ter 1).
8Rotate the crankshaft clockwise until the
second pair of notches in the pulley rim align
with the edge of the sump mark, so that Nos
1 and 4 cylinders are at TDC (see Section 4).9Unbolt and remove the water pump pulley
and the auxiliary drivebelt idler pulley.
10Obtain Ford service tool 21-162, or
fabricate a substitute from a strip of metal
5 mm thick (while the strip’s thickness is
critical, 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 Top Dead Centre (TDC) - No 1
on the compression stroke - by resting this
tool on the cylinder head mating surface, and
sliding it into the slot in the left-hand end of
both camshafts (see illustration). The tool
should slip snugly into both slots while resting
on the cylinder head mating surface; if one
camshaft is only slightly out of alignment, it is
permissible to use an open-ended spanner to
rotate the camshaft gently and carefully until
the tool will fit.
11If both camshaft slots (they are machined
significantly off-centre) are below the level of
the cylinder head mating surface, rotate the
crankshaft through one full turn clockwise
and fit the tool again; it should now fit as
described in the previous paragraph.
12With the camshaft aligning tool remaining
in place, remove the crankshaft pulley. Do not
use the locked camshafts to prevent the
crankshaft from rotating - use only the locking
methods described in Section 8.
13Remove the timing belt lower and middle
covers (see Section 9).
14With the camshaft aligning tool still in
place, slacken the tensioner bolt, and use an
Allen key inserted into its centre to rotate the
tensioner clockwise as far as possible away
from the belt; retighten the bolt to secure the
tensioner clear of the timing belt (see
illustration).
15If the timing belt is to be re-used, use
white paint or similar to mark its direction of
rotation, and note from the manufacturer’s
markings which way round it is fitted.
Withdraw the belt (see illustration). Do not
rotate the crankshaft until the timing belt is
refitted.
16If 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
In-car engine repair procedures 2A•11
2A
10.10 Fit camshaft aligning tool to ensure
engine is locked with Nos 1 and 4 cylinders
at TDC10.14 Slacken tensioner bolt, and use
Allen key to rotate tensioner away from
timing belt . . .10.15 . . . then withdraw timing belt
10.1 Timing belt and cover details
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 pulley
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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.
33Refit the hydraulic tappets (if removed),
the camshafts, their oil seals and pulleys (see
Sections 10, 11, 12 and 13, as appropriate).
Temporarily refit the crankshaft pulley, and
rotate the crankshaft clockwise to return the
pulley notches to the position described in
paragraph 8 of Section 10.
34Refit the timing belt and covers, checking
the camshaft alignment (valve timing) and
setting the timing belt tension, as described in
Section 10.
35The 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) When reassembling the
engine/transmission right-hand mounting,
renew the self-locking nuts, and do not
allow the mounting to twist as the middle
two of the bracket’s six nuts are
tightened.
(c) Refill the cooling system, and top-up the
engine oil.
(d) Check all disturbed joints for signs of oil
or coolant leakage, once the engine has
been restarted and warmed-up to normal
operating temperature.
Removal
Note:To carry out this task with the
engine/transmission installed in the vehicle
requires the assistance of at least one person,
plus the equipment necessary to raise and
support the front of the vehicle (high enough
that the sump can be withdrawn from
underneath), and to lift and support the
complete engine/transmission unit 2 to 3 inches from its mountings while the vehicle
is raised. Precise details of the procedure will
depend on the equipment available - the
following is typical.
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.
1With the vehicle parked on firm level
ground, open the bonnet and disconnect the
battery negative (earth) lead - see Chapter 5,
Section 1.
2Drain 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).
3Drain the cooling system (see Chapter 1).
4Disconnect the radiator bottom hose from
the radiator union and from the (heater)
coolant pipe. Unbolt the coolant pipe from
the sump; if they will prevent sump removal,
disconnect or release the coolant hoses from
the oil cooler unions (where fitted).
5Unscrew the two bolts securing the powersteering system pipes to the right-hand side
of the subframe.
6Unplug the electrical connector(s) to
disconnect the oxygen sensor and, where
fitted, the oil level sensor wiring - unclip the
connectors to release the wiring where
necessary.
7Where the vehicle is fitted with automatic
transmission, trace the fluid cooler lines from
the transmission to the radiator, and release
them from any clips etc, so that they have as
much movement as possible.
8Remove the auxiliary drivebelt cover (see
Chapter 1).
9Unscrew 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 4 for details).
10Unscrew the sump-to-transmission bolts,
also any securing the engine/transmission
lower adaptor plate.
11Unplugging the two electrical connectors,
disconnecting the vacuum hose (where fitted)
and disconnecting the crankcase breather
hose from the cylinder head cover, remove
the complete air cleaner assembly with the air
mass meter, the resonator and the plenum
chamber (see Chapter 4).
12Take the weight of the engine/
transmission unit using the lifting eyes
provided on the cylinder head; bolt on
15 Sump - removal and refitting
In-car engine repair procedures 2A•19
2A
14.32B . . . and to third stage using angle
gauge14.32C Cylinder head bolt tightening
sequence
Note:View from rear of vehicle15.12 Equipment must be available to raise
and support engine/transmission unit while
vehicle is raised, to allow sump removal
14.30 Refitting cylinder head - note
fabricated guide studs (arrowed)14.32A Tightening cylinder head bolts (to
first and second stages) using torque
wrench . . .
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4If a hose proves stubborn, try to release it
by rotating it on its unions before attempting
to work it off. Gently prise the end of the hose
with a blunt instrument (such as a flat-bladed
screwdriver), but do not apply too much force,
and take care not to damage the pipe stubs or
hoses. Note in particular that the radiator hose
unions are fragile; do not use excessive force
when attempting to remove the hoses. If all
else fails, cut the hose with a sharp knife, then
slit it so that it can be peeled off in two pieces.
While expensive, this is preferable to buying a
new radiator. Check first, however, that a new
hose is readily available.
5When refitting a hose, first slide the clampsonto the hose, then work the hose onto its
unions. If the hose is stiff, use soap (or
washing-up liquid) as a lubricant, or soften it
by soaking it in boiling water, but take care to
prevent scalding.
6Work each hose end fully onto its union,
then check that the hose is settled correctly
and is properly routed. Slide each clip along
the hose until it is behind the union flared end,
before tightening it securely.
7Refill the system with coolant (see Chap-
ter 1).
8Check carefully for leaks as soon as
possible after disturbing any part of the
cooling system.Note:Refer to the warnings given in Section 1
of this Chapter before starting work.
Removal
1Disconnect the battery negative (earth) lead
(see Chapter 5, Section 1).
2Unbolt the resonator support bracket from
the engine compartment front crossmember.
Slacken the two clamp screws securing the
resonator to the air mass meter and plenum
chamber hoses, then swing the resonator up
clear of the thermostat housing (see Chap-
ter 4).
3Drain the cooling system (see Chapter 1). If
the coolant is relatively new or in good
condition, drain it into a clean container and
re-use it.
4Disconnect the expansion tank coolant
hose and the radiator top hose from the
thermostat housing’s water outlet.
5Unbolt the water outlet and withdraw the
thermostat (see illustration). Note the
position of the air bleed valve, and how the
thermostat is installed (which end is facing
outwards).
Testing
General check
6Before assuming the thermostat is to blame
for a cooling system problem, check the
coolant level, auxiliary drivebelt tension and
condition (see Chapter 1) and temperature
gauge operation.
7If the engine seems to be taking a long time
to warm up (based on heater output or
temperature gauge operation), the thermostat
is probably stuck open. Renew the
thermostat.
8If the engine runs hot, use your hand to
check the temperature of the radiator top
hose. If the hose isn’t hot, but the engine is,
the thermostat is probably stuck closed,
preventing the coolant inside the engine from
escaping to the radiator - renew the
thermostat.
4 Thermostat -
removal, testing and refitting
Cooling, heating and air conditioning systems 3•3
3
4.5 Unbolt water outlet to withdraw
thermostat
3.1 Cooling system components
1 Radiator
2 (Twin) electric cooling fan
and shroud
3 Expansion tank
4 Filler/pressure cap
5 Bolt
6 (Single) electric cooling fan
and shroud7 Bolt
8 Coolant pipe
9 Nut
10 Top mounting rubber
11 Bottom mounting rubber
12 Bolt
13 Radiator mounting
bracket14 Coolant hose
15 Bolt
16 Radiator top hose
17 Coolant pipe/hose
18 Stud
19 Thermostat housing
20 Radiator bottom hose
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sender’s electrical connector, and use a
jumper wire to connect the white/red wire to a
clean earth point (bare metal) on the engine.
Switch on the ignition without starting the
engine. If the gauge now indicates Hot, renew
the sender.
5If the gauge still does not work, the circuit
may be open, or the gauge may be faulty. See
Chapter 12 for additional information.
Removal
6Unbolt the resonator support bracket from
the engine compartment front crossmember.
Slacken the two clamp screws securing the
resonator to the air mass meter and plenum
chamber hoses, then swing the resonator up
clear of the thermostat housing (see Chap-
ter 4).
7Drain the cooling system (see Chapter 1).
8Disconnect the expansion tank coolant
hose and the radiator top hose from the
thermostat housing’s water outlet, then
disconnect the metal coolant pipe/hose from
the thermostat.
9Unplug the electrical connector from the
sender (see illustration).
10Unscrew the sender and withdraw it.
Refitting
11Clean as thoroughly as possible the
opening in the thermostat housing, then apply
a light coat of sealant to the sender’s threads.
Screw in the sender and tighten it to the
specified torque wrench setting, and plug in
its electrical connector.
12Reconnect the hoses and refit the
resonator, top-up the cooling system (see
Chapter 1) and run the engine. Check for
leaks and proper gauge operation.
Coolant temperature sensor
Testing
13Disconnect the battery negative (earth)
lead (see Chapter 5, Section 1).
14Unbolt the resonator support bracket
from the engine compartment front
crossmember. Slacken the two clamp screws
securing the resonator to the air mass meter
and plenum chamber hoses, then swing the
resonator up clear of the thermostat housing
(see Chapter 4).
15Unplug the electrical connector from the
sensor (see illustration).
16Using an ohmmeter, measure the
resistance between the sensor terminals.
Depending on the temperature of the sensor
tip, the resistance measured will vary, but
should be within the broad limits given in the
Specifications Section of this Chapter. If the
sensor’s temperature is varied - by removing
it (see below) and placing it in a freezer for a
while, or by warming it gently - its resistance
should alter accordingly.
17If the results obtained show the sensor to
be faulty, renew it.
18On completion, plug in the connector and
refit the resonator.
Removal
19Disconnect the battery negative (earth)
lead (see Chapter 5, Section 1).
20Unbolt the resonator support bracket
from the engine compartment front
crossmember. Slacken the two clamp screws
securing the resonator to the air mass meter
and plenum chamber hoses, then swing the
resonator up clear of the thermostat housing
(see Chapter 4).
21With the engine completely cool, remove
the expansion tank filler cap to release any
pressure, then refit the cap. Provided you
work swiftly and plug the opening as soon as
the sensor is unscrewed, coolant loss will thus
be minimised; this will avoid the draining of
the complete cooling system which would
otherwise be necessary (see Chapter 1).
22Unplug the electrical connector from the
sensor.
23Unscrew the sensor and withdraw it. If the
cooling system has not been drained, plug the
opening as quickly as possible.
Refitting
24Clean as thoroughly as possible the
opening in the thermostat housing, then apply
a light coat of sealant to the sensor’s threads.
Remove the material used to plug the sensor
hole (where applicable), and quickly install the
sensor to prevent coolant loss. Tighten the
sensor to the specified torque wrench setting,
and plug in its electrical connector.
25Refit the resonator, top-up the cooling
system (see Chapter 1) and run the engine,
checking for leaks.
Coolant low level switch
Testing
26The switch is a reed-type unit mounted in
the bottom of the cooling system expansion
tank, activated by a magnetic float. If the
coolant level falls to the “MIN” level or less,
the appropriate bulb lights in the warning
display.
27If the bulb fails to light during the 5-
second bulb test, check the bulb, and renew if
necessary as described in Chapter 12.
28To check the switch itself, unplug its
electrical connector, and use an ohmmeter to
measure the resistance across the switchterminals. With the float up, a resistance of
90 ohms should be measured; when it is
down, the resistance should increase to
approximately 150 kilohms.
29If the results obtained from the check are
significantly different from those expected,
the switch is faulty, and must be renewed.
30If the switch and bulb are proven to be
sound, the fault must be in the wiring or in the
auxiliary warning control assembly (see
Chapter 12).
Removal
31Disconnect the battery negative (earth)
lead (see Chapter 5, Section 1).
32Remove the expansion tank (see Sec-
tion 7).
33Unplug the switch electrical connector.
34Release the switch by twisting its retainer
anti-clockwise, then withdraw it.
Refitting
35Refitting is the reverse of the removal
procedure. Refill the cooling system (see
Chapter 1). Start the engine, and check for
coolant leaks when it is fully warmed-up.
Note:Refer to the warnings given in Section 1
of this Chapter before starting work.
Radiator
Removal
Note:If leakage is the reason for removing the
radiator, bear in mind that minor leaks can
often be cured using a radiator sealant with
the radiator in situ.
1Remove the radiator fan and shroud
assembly (see Section 5).
2Disconnect the bottom hose from the
radiator.
3If the vehicle has automatic transmission,
disconnect the fluid cooler lines, and plug the
lines and fittings.
4If the vehicle has air conditioning, unscrew
the condenser mounting nuts or bolts, detach
the condenser from the radiator, and tie it to
the engine compartment front crossmember.
7 Radiator and expansion tank -
removal, inspection and refitting
Cooling, heating and air conditioning systems 3•5
3
6.9 Location (arrowed) of coolant
temperature gauge sender6.15 Location (arrowed) of coolant
temperature sensor
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