1985 FORD GRANADA ECO mode

13Apply a sealing compound to the faces of
the cylinder block and sump at the points
indicated(see illustration).
14Apply suitable thread-locking compound
to the sump securing studs and bolts, then
locate the sump on the cylinder block and fit
the securing nuts and bolts, but do not fully
tighten them at this stage.
15Align the sump so that the end faces and
the cylinder block are flush. To do this, use a
straight-edge. If the sump cannot be
positioned so that the faces of the cylinder
block and sump are flush, measure the
difference in height using a feeler blade as
shown (see illustration).
16Tighten the sump securing nuts and bolts
to the specified torque, then repeat the
measurement made in paragraph 15. If the
end faces of the sump and cylinder block are
not flush, suitable shims must be fitted
(available from a Ford dealer) between the
sump and the gearbox/transmission to
eliminate the clearance when mating the
engine to the gearbox/transmission. Note that
shims should be fitted at both sides of the
sump, as required. Select suitable shims from
those listed in the following table.
Clearance measuredShims required
0 to 0.25 mmNo shims required
0.25 to 0.29 mm0.15 mm (silver)
0.30 to 0.44 mm0.30 mm (light blue)
0.45 to 0.59 mm0.45 mm (red)
0.60 to 0.75 mm0.60 mm (black)
17If the engine is in the vehicle, reverse the
procedure described in paragraphs 3 to 8,
noting the following points.
a)Ensure that the roadwheels and the
steering wheel are in the straight-aheadposition then align the marks made on
removal and reconnect the intermediate
shaft to the steering gear. Tighten the
clamp bolt to the specified torque.
b)Fill the engine with the correct grade and
quantity of oil.
c)Refit the engine adapter plate and the
flywheel/driveplate.
d)Refit the gearbox or automatic
transmission, as applicable, ensuring that
the required shims are fitted between the
sump and the gearbox/transmission.
e)Tighten all fixings to the specified torque
where applicable.
Note: A suitable puller will be required to
remove the crankshaft pulley. A new
crankshaft pulley bolt, a new lower timing
chain cover gasket and a new oil pump gasket
must be used on refitting.
1If the engine is in the car, carry out the
following operations.
a)Disconnect the battery negative lead.
b)To Improve access, remove the radiator. It
will be difficult to remove the crankshaft
pulley with the radiator in place.
c)On fuel-injection models, remove the air
inlet hose, plenum chamber and air
cleaner lid as an assembly.
2Proceed as described in paragraphs 3 to 10
of Section 15.3Unscrew the four securing bolts and
withdraw the oil pump from the cylinder block
(see illustration). Recover the gasket and
discard it.
4If desired, the pump can now be dismantled
and inspected.
5Thoroughly clean the mating faces of the
pump and the cylinder block.
6Prime the pump by injecting clean engine oil
into it and turning it by hand.
7Place a new gasket on the oil pump flange,
ensuring that the gasket is correctly located so
that the holes align with the oil passages in the
pump.
8Fit the oil pump, and tighten the securing
bolts to the specified torque.
9Proceed as described in paragraphs 28 to 40
of Section 15.
10If the engine is in the vehicle, reverse the
operations described in paragraph 1.
1The oil pump can be dismantled for
cleaning, but if any of the components are
worn, the pump must be renewed as an
assembly.
2To dismantle the pump, proceed as follows.
3Unscrew the two securing bolts, and
remove the pump cover (see illustration).
4Lift the inner and outer rotors from the
pump casing.
5Unscrew the pressure relief valve plug from
27Oil pump - dismantling,
inspection and reassembly
26Oil pump - removal and
refitting
2B•16DOHCengine
25.13 Apply sealing compound to the
sump/cylinder block mating faces at the
points indicated (2)
Dimensions are for guidance only
27.3 Removing the oil pump cover27.5a Unscrew the pressure relief valve
plug and washer . . .
25.15 Measuring the clearance between the
cylinder block and sump end faces26.3 Oil pump securing bolts (arrowed)
procarmanuals.com

Cooling system
The cooling system is of pressurised type
and includes a front mounted crossflow
radiator, belt-driven water pump, temperature-
sensitive thermo-viscous fan (on DOHC
models, an electrically-operated cooling fan is
fitted, operated by a switch in the thermostat
housing), wax type thermostat, and an
expansion and degas tank.
The radiator matrix is of copper and brass
construction and the end tanks are of plastic.
On automatic transmission models the right-
hand side end tank incorporates the
transmission oil cooler.
The thermostat is located behind the water
outlet elbow at the front of the cylinder head
on OHCmodels, and on the front of the water
pump on V6 models. Its purpose is to ensure
rapid engine warm-up by restricting the flow of
coolant in the engine when cold, and also to
assist in regulating the normal operating
temperature of the engine.
The expansion tank incorporates a pressure
cap which effectively pressurises the cooling
system as the coolant temperature rises,
thereby increasing the boiling point of the
coolant. The tank also has a further degas
function. Any accumulation of air bubbles in
the coolant, in particular in the thermostat
housing and the radiator, is returned to the
tank and released in the air space thus
maintaining the efficiency of the coolant.
On models fitted with the auxiliary warning
system, the expansion tank contains a level
sensor which operates a warning light if the
coolant level falls significantly.
When the engine is started from cold, the
water pump circulates coolant around the
cylinder block, cylinder head(s) and inlet
manifold. The warm coolant passes through
the automatic choke housing (when
applicable) and through the heater matrix
before returning to the engine. As the coolant
expands, the level in the expansion tank rises.
Circulation of coolant through the radiator is
prevented while the thermostat is shut. When
the coolant reaches the predeterminedtemperature the thermostat opens and hot
water passes through the top hose to the top
of the radiator. As the water circulates down
through the radiator, it is cooled by the
passage of air past the radiator when the car is
in forward motion, supplemented by the action
of the thermo-viscous fan when necessary.
Having reached the bottom of the radiator, the
water is now cool and the cycle is repeated.
Circulation of water continues through the
expansion tank, inlet manifold and heater at all
times; the heater temperature control being by
an air flap.
The thermo-viscous fan is controlled by the
temperature of air behind the radiator. When
the air temperature reaches a predetermined
level, a bi-metallic coil commences to open a
valve within the unit and silicon fluid is fed
through a system of vanes. Half of the vanes
are driven directly by the water pump and the
remaining half are connected to the fan blades.
The vanes are arranged so that drive is
transmitted to the fan blades in relation to the
drag or viscosity of the fluid, and this in turn
depends on ambient temperature and engine
speed. The fan is therefore only operated when
required, and compared with direct drive type
fan represents a considerable improvement in
fuel economy, drivebelt wear and fan noise.
Air conditioning
Air conditioning is fitted as standard on
Scorpio models and is optionally available on
some other models. In conjunction with the
heater, the system enables any reasonable air
temperature to be achieved inside the car, it
also reduces the humidity of the incoming air,
aiding demisting even when cooling is not
required.
The refrigeration side of the air conditioning
system functions in a similar way to a
domestic refrigerator. A compressor, belt-
driven from the crankshaft pulley, draws
refrigerant in its gaseous phase from an
evaporator. The compressed refrigerant
passes through a condenser where it loses
heat and enters its liquid phase. After
dehydration the refrigerant returns to the
evaporator where it absorbs heat from air
passing over the evaporator fins. The
refrigerant becomes a gas again and the cycle
is repeated.Various subsidiary controls and sensors
protect the system against excessive
temperature and pressures. Additionally,
engine idle speed is increased when the
system is in use to compensate for the
additional load imposed by the compressor.
Precautions
Antifreeze mixture
Antifreeze mixture is poisonous. Keep it out
of reach of children and pets. Wash splashes
off skin and clothing with plenty of water.
Wash splashes off vehicle paintwork to avoid
discolouration.
Antifreeze/water mixture must be renewed
every two years to preserve its anti-corrosive
properties. In climates where antifreeze
protection is unnecessary, a corrosion
inhibitor may be used instead - consult a Ford
dealer. Never run the engine for long periods
with plain water as coolant. Only use the
specified antifreeze, as inferior brands may not
contain the necessary corrosion inhibitors, or
may break down at high temperatures.
Antifreeze containing methanol is particularly
to be avoided, as the methanol evaporates.
The specified mixture is 45 to 50%
antifreeze and 50 to 55% clean soft water (by
volume). Mix the required quantity in a clean
container.
Air conditioning refrigerant
Although the refrigerant is not itself toxic, in
the presence of a naked flame (or a lighted
cigarette) it forms a highly toxic gas. Liquid
refrigerant spilled on the skin will cause
frostbite. If refrigerant enters the eyes, rinse
them with a dilute solution of boric acid and
seek medical advice immediately.
In view of the above points, and of the need
for specialised equipment for evacuating and
recharging the system, any work which
requires the disconnection of a refrigerant line
must be left to a specialist.
Do not allow refrigerant lines to be exposed
to temperatures above 110°C (230°F) - eg
during welding or paint drying operations and
do not operate the air conditioning system if it
is known to be short of refrigerant, or further
damage may result.
1General information and
precautions
3•2Cooling, heating and ventilation systems
Torque wrench settingsNmlbf ft
Radiator lower mountings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 126 to 9
Thermostat housing bolts:
SOHC, DOHC and 2.8 litre V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 to 2013 to 15
2.4 & 2.9 litre V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 to 105 to 7
Water pump bolts:
SOHC, M8 bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 to 2113 to 16
SOHC, M10 bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 to 4226 to 31
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2816 to 21
2.8 litre V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 to 137 to 10
2.4 & 2.9 litre V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 to 105 to 7
Water pump pulley bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2616 to 19
Water pump/alternator drivebelt tensioner bolt (DOHC) . . . . . . . . . . . .70 to 9752 to 72
Fan-to-viscous clutch bolts:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 106 to 7
V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 to 2313 to 17
Fan shroud bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 116 to 8
Cylinder block drain plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2516 to 18
procarmanuals.com

Make sure that the thermostat is the right way
round - the wax capsule fits into the cylinder
head, with the direction of flow arrow facing
forwards (see illustration).
8Refill the cooling system.
DOHC engines
9Disconnect the battery negative lead.
10Drain the cooling system.
11On fuel-injection models, for access to the
thermostat housing, loosen the clips and
remove the air inlet tube which connects the
plenum chamber to the inlet manifold.
12Disconnect the coolant hoses from the
thermostat housing (see illustrations).
13Disconnect the wiring plug from the
cooling fan switch mounted in the thermostat
housing (see illustration).
14Unscrew the three securing bolts, andwithdraw the thermostat housing (see
illustration).
15Manoeuvre the thermostat away from the
inlet manifold and recover the O-ring. If it is
necessary to prise the thermostat out, take
care not to damage the surface of the housing
in the inlet manifold.
16Refitting is a reversal of removal, bearing
in mind the following points:
a)Ensure that the O-ring seal is correctly
fitted around the edge of the thermostat.
b)When fitting the thermostat to the inlet
manifold ensure that the relief valve is
located in the 12 o’clock position (see
illustration).
c)Tighten the thermostat housing bolts to
the specified torque.
d)Refill the cooling system.
3•4Cooling, heating and ventilation systems
7.3 Top hose attachment to the thermostat
housing
7.12b . . . from the thermostat housing
7.5b . . . extract the thermostat . . .7.5c . . . and the sealing ring7.7 Thermostat direction of flow arrow
7.12a Disconnecting the coolant hoses . . .
7.13 Disconnect the cooling fan switch
wiring plug . . .7.14 . . . and remove the thermostat
housing
7.4 Removing the thermostat housing7.5a Remove the retaining clip . . .
procarmanuals.com

7Remove the three securing bolts and
withdraw the water pump (see illustrations).
8A leaking, noisy or otherwise defective
pump must be renewed.
9Clean the mating faces and obtain a new
gasket for reassembly (see illustration).
10Refit by reversing the removal operation,
tightening all fastenings to the correct torque
(where specified).
11Refill the cooling system.
DOHC engines
12Disconnect the battery negative lead.
13On fuel-injection models, for access to the
water pump, remove the air inlet hose, plenum
chamber, and air cleaner lid as an assembly.
14Drain the cooling system.
15Remove the water pump/alternator
drivebelt.16If the pump pulley is to be removed, it is
easiest to do this with the pump in position as
follows. Prevent the pulley from rotating using
a strap wrench (which can be improvised
using an old drivebelt and a large socket and
wrench), and unscrew the four pulley securing
bolts. Withdraw the pulley.
17Position a suitable container beneath the
water pump to catch the coolant which will be
released as the pump is removed, then
unscrew the five securing bolts and withdraw
the pump from the housing in the cylinder
block (see illustration). Recover the O-ring
seal and discard it; a new one must be used
on refitting.
18Refitting is a reversal of removal, bearing
in mind the following points:
a)Ensure that the mating faces of the water
pump and cylinder block are clean and fit
a new O-ring to the pump (see
illustration).
b)Tighten the water pump bolts and where
applicable the pump pulley bolts to the
specified torque.
c)On completion refill the cooling system.
19Note that on models up to May 1990, the
coolant hoses were connected to the water
pump housing as shown(see illustration).
20On models from May 1990, the heater
hose (A) and the expansion tank hose (B)
connections were swapped over.21If the hoses are disconnected on earlier
models, such as during engine removal, they
should be reconnected as on later models, ie
connect the heater hose to connection B and
connect the expansion tank hose to connection
A. This will reduce the possibility of noises from
the heater matrix due to air in the system.
V6 engines
22Disconnect the battery negative lead.
23Drain the cooling system.
24Remove the fan and viscous coupling.
25If not already done, remove the pump
drivebelt(s), then unbolt and remove the water
pump pulley.
26Disconnect the radiator bottom hose and the
heater return hose from the thermostat housing.
27Remove the three bolts which secure the
thermostat housing to the water pump.
Remove the housing and the thermostat.
28Remove the twelve securing bolts and
withdraw the water pump. Note that on some
models it will be necessary to remove the
crankshaft pulley and damper to gain access
to the lower water pump bolts (see
illustration).
29A leaking, noisy or otherwise defective
pump must be renewed.
30Clean the mating faces and obtain a new
gasket for reassembly. Use a new thermostat
housing gasket also.
31Refit by reversing the removal operation,
tightening all fastenings to the correct torque
(where specified).
32Refill the cooling system.
3•6Cooling, heating and ventilation systems
11.7a This water pump bolt also secures
the alternator strap
11.18 On refitting, renew the water pump
O-ring (arrowed)
11.17 Withdrawing the water pump from
the cylinder block (engine removed)
11.19 Water pump housing hose
connections
A Heater hose connection - up to May 1990
B Expansion tank hose connection - up to
May 1990
C Bottom radiator hose
11.28 Removing the water pump
11.7b Water pump removed11.9 Fitting a new gasket to the water
pump
procarmanuals.com

See Chapter 1, Section 21.
1On 2.0 litre DOHC engines only, remove the
water pump/alternator drivebelt as described
in the previous Section.
2Loosen the alternator lower mounting
through-bolt, then remove the alternator upper
mounting bolt, and swing the alternator away
from the engine.
3Unscrew the central securing bolt, and
withdraw the drivebelt tensioner assembly.
4Commence refitting by positioning the
tensioner on the cylinder block, ensuring that
the lug on the rear of the tensioner bracket
engages with the corresponding hole in the
cylinder block (see illustration). Tighten the
securing bolt.
5Swing the alternator into position to align
the upper mounting bolt hole with the
corresponding hole in the drivebelt tensioner
assembly, then refit and tighten the upper
mounting bolt, then the lower throughbolt.
6Check the full length of the drivebelt for cracks
and deterioration and renew if necessary.
7Fit the drivebelt using a reversal of the
removal procedure, and release the tensioner
to tension the drivebelt.
1Disconnect the battery negative lead.
2Depressurize the cooling system by
unscrewing the expansion tank cap. Take
precautions against scalding if the system
is hot.
3Slacken the hose clips on all the hoses
which are connected to the tank. Pull off and
plug those hoses which are above the
waterline.4Remove the two screws which secure the
tank. Tilt the tank so that the coolant lies away
from the outlets, then disconnect and plug the
remaining hose.
5Disconnect the coolant level sensor, when
fitted, and remove the tank.
6Refit by reversing the removal operations.
Top-up the cooling system on completion.
1The temperature gauge sender is located
towards the front of the engine. On SOHC
models it is just below the inlet manifold (see
illustration); on V6 models it is just below the
top hose connection on the front of the left-
hand cylinder head, and on DOHC models it is
located at the front of the inlet manifold (see
illustration).
2Slacken the expansion tank cap to release
pressure in the cooling system, taking
precautions against scalding if the system
is hot.Tighten the cap again to minimise
coolant loss.
3Disconnect the wiring from the sender unit.
Unscrew and remove it, being prepared for
some coolant spillage.
4Smear sealant on the sender unit threads
before refitting, then insert and tighten it.
Reconnect the wiring.
5Top-up the cooling system if necessary,
then run the engine and check the operation of
the temperature gauge.The cooling fan switch is located in the end
of the thermostat housing.
Removal and refitting of the switch is as
described for the temperature gauge sender in
the previous Section.
Models before April 1992
Front
1Disconnect the battery negative lead.
2Remove the instrument cluster (Chapter 13).
3Remove the facia top (Chapter 12).
4Unclip the two control cables from the
control levers (see illustration).
5On air conditioned models, disconnect the
hoses from the vacuum switch.
6Remove the four screws which secure the
heater control assembly. Withdraw the
assembly from the facia.
7When refitting, secure the control assembly
with the four screws. Reconnect the vacuum
switch (when applicable) and the control
cables. Adjust the control cables if necessary
by altering the positions of the cable clips.
8When satisfied with the operation of the
cables, refit the other disturbed components.
Rear
9Remove the centre console (Chapter 12).
10Unclip the control cables and remove the
control unit.
11Refit in the reverse order to removal.
Models from April 1992
12Undo the two instrument panel surround
retaining screws, then carefully release the
retaining clips and remove the surround from
the facia.
13Pull off the three knobs from the heater
and ventilation controls to gain access to the
two hidden central vent panel retaining
screws. Slacken and remove the four panel
retaining screws and partially withdraw the
17Heater controls - removal and
refitting
16Cooling fan switch - removal
and refitting
15Temperature gauge sender -
removal and refitting
14Expansion tank - removal and
refitting
13Water pump/alternator
drivebelt tensioner - removal
and refitting
12Water pump/alternator
drivebelt(s) - inspection,
renewal and adjustment
Cooling, heating and ventilation systems 3•7
3
13.4 On refitting, ensure the drivebelt
tensioner lug (A) engages with hole in the
mounting bracket (B)15.1a Temperature gauge sender (manifold
removed)15.1b Temperature gauge sender unit
location (arrowed)
17.4 Heater control cable clip (arrowed)
viewed through windscreen
procarmanuals.com

Chapter 4
Fuel and exhaust systems
Air cleaner and element - removal and refitting . . . . . . . . . . . . . . . . .2
Air cleaner temperature control - description and testing . . . . . . . . .3
Carbon canister - removal and refitting . . . . . . . . . . . . . . . . . . . . . .44
Carbon canister purge solenoid - removal and refitting . . . . . . . . . .45
Exhaust gas oxygen (HEGO) sensor - removal and refitting . . . . . .43
Exhaust manifold(s) - removal and refitting . . . . . . . . . . . . . . . . . . .41
Exhaust system - inspection, repair and renewal . . . . . . . . . . . . . .42
Fuel cut-off inertia switch - removal and refitting . . . . . . . . . . . . . . . .7
Fuel filter - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Fuel gauge sender unit - removal and refitting . . . . . . . . . . . . . . . . . .6
Fuel-injection system - depressurisation . . . . . . . . . . . . . . . . . . . . .28
Fuel-injection system - idle speed and mixture adjustments . . . . . .31
Fuel-injection system relays - location . . . . . . . . . . . . . . . . . . . . . . .29
Fuel-injectors - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . .36
Fuel pressure regulator - removal and refitting . . . . . . . . . . . . . . . .37
Fuel pump - testing, removal and refitting . . . . . . . . . . . . . . . . . . . . .4
Fuel rail temperature switch - removal and refitting . . . . . . . . . . . . .39
Fuel tank - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
General information and precautions . . . . . . . . . . . . . . . . . . . . . . . . .1
Idle speed control valve - removal and refitting . . . . . . . . . . . . . . . .34
Inlet manifold - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . .40
Mixture adjustment potentiometer - removal and refitting . . . . . . . .38
Pierburg 2V carburettor - dismantling and reassembly . . . . . . . . . .13
Pierburg 2V carburettor - fast idle adjustment . . . . . . . . . . . . . . . . .14
Pierburg 2V carburettor - idle speed and mixture adjustments . . . .11
Pierburg 2V carburettor - removal and refitting . . . . . . . . . . . . . . . .12Throttle body - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . .33
Throttle cable - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .9
Throttle pedal - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .8
Throttle position sensor - removal and refitting . . . . . . . . . . . . . . . .32
Unleaded fuel - general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Vane airflow meter(s) - removal and refitting . . . . . . . . . . . . . . . . . .35
Vapour separator - removal and refitting . . . . . . . . . . . . . . . . . . . . .10
Weber 2V carburettor - automatic choke adjustment . . . . . . . . . . .18
Weber 2V carburettor - dismantling and reassembly . . . . . . . . . . . .17
Weber 2V carburettor - idle speed and mixture adjustments . . . . .15
Weber 2V carburettor - removal and refitting . . . . . . . . . . . . . . . . . .16
Weber 2V TLD carburettor - automatic choke unit removal,
refitting and adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Weber 2V TLD carburettor - accelerator pump diapragm renewal .25
Weber 2V TLD carburettor - idle speed and mixture adjustments . .19
Weber 2V TLD carburettor - low vacuum enrichment
diaphragm renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Weber 2V TLD carburettor - needle valve and float removal,
refitting and adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Weber 2V TLD carburettor - power valve diaphragm renewal . . . . .23
Weber 2V TLD carburettor - removal and refitting . . . . . . . . . . . . .20
Weber 2V TLD carburettor - secondary throttle valve vacuum
diaphragm renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Weber 2V TLD carburettor - throttle kicker removal, refitting
and adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
General
System type:
1.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Twin choke Pierburg carburettor
2.0 litre carburettor:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Twin choke Weber 2V carburettor
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Twin choke Weber 2V TLD carburettor
All models with fuel injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multi-point fuel-injection system controlled by EEC IV engine
management system
Fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 litres (15.4 gallons) approx
Fuel grade*:
Leaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 octane RON (UK 4-star)
Unleaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 octane RON (Premium)
* Models fitted with a catalytic converter must be operated on unleaded fuel at all times. Do notuse leaded fuel as the catalyst will be destroyed.
Idle speed:
1.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 ± 20 rpm
2.0 litre carburettor:
SOHC* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 or 875 rpm
DOHC:
Manual gearbox* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 850 ± 25 rpm
Automatic transmission* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 875 ± 25 rpm
2.0 litre fuel-injection:
SOHC* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 or 875 rpm
DOHC* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 875 ± 50 rpm
4•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
Specifications Contents
4
procarmanuals.com

4•2Fuel and exhaust systems
Idle speed (continued):
2.4 litre*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .850 ±50 rpm
2.8 litre* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .850 rpm
2.9 litre* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .850 ±50 rpm
Idle mixture (CO) level:
1.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3%
2.0 litre carburettor:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.75 to 1.50%
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.0 ±0.25%
2.0 litre fuel-injection:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 to 1.0%
DOHC - models without catalytic converter . . . . . . . . . . . . . . . . . .1.0 to 1.5%
2.4 litre - models without a catalytic converter . . . . . . . . . . . . . . . . . .0.5 to 1.0 %
2.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 to 1.0%
2.9 litre - models without a catalytic converter . . . . . . . . . . . . . . . . . .0.5 to 1.0 %
*Electronically controlled
Pierburg 2V carburettor
Venturi diameter:
Primary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 mm
Secondary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 mm
Jet sizes:
Idle (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Idle (air bleed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Primary main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107.5
Secondary main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
Adjustments:
Fast idle speed (engine warm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1800 ±100 rpm (on second highest step of cam)
Choke pull-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 mm (0.12 in)
Throttle damper setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 ±0.5 mm (0.08 ±0.02 in)
Float level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Not adjustable
Automatic choke setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Index
Weber 2V carburettorPrimarySecondary
Barrel diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 mm34 mm
Venturi diameter:
85HFCA and -DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 mm27 mm
85HFGA, -HA, -MA and -NA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 mm25 mm
Jet sizes - 85HFCA:
Main jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112135
Air correction jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165150
Emulsion tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F22F22
Idle jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4545
Jet sizes - 85HFDA:
Main jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110135
Air correction jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160150
Emulsion tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F22F22
Idle jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4545
Jet sizes - 85HFGA and -HA:
Main jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107125
Air correction jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180160
Emulsion tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F59F59
Idle jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4550
Jet sizes - 85HFMA:
Main jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105130
Air correction jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200160
Emulsion tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F59F59
Idle jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4550
Jet sizes - 85HFNA:
Main jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110125
Air correction jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180160
Emulsion tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F59F59
Idle jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4550
Adjustments:
Choke pull-down (maximum):
85HFCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.0 mm (0.35 in)
85HFDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.0 mm (0.32 in)
All others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.5 mm (0.30 in)
Bi-metal housing setting:
85 HFCA, -DA, -HA and -MA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Index
85HFGA and -NA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 mm (0.12 in) lean
Float level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.5 to 8.5 mm (0.30 to 0.34 in)
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Fuel and exhaust systems 4•3
4
Weber 2V TLD carburettorPrimarySecondary
Venturi diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23.0 mm25.0 mm
Main jet:
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115157
Automatic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112157
Air correction jet:
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175145
Automatic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210145
Emulsion tube:
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F114F3
Automatic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210145
Fast idle speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1800 ±50 rpm
Float level (with gasket) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29.0 ±0.5 mm
Automatic choke vacuum pull-down . . . . . . . . . . . . . . . . . . . . . . . . . . .5.0 ±0.5 mm
Throttle kicker speed (see text):
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2000 ±50 rpm
Automatic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2200 ±50 rpm
Fuel-injection system
Make . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bosch
Fuel pump type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Roller cell, electric
Fuel pump output pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Greater than 5 bar at 12 volts, no flow
System control pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.5 bar
Torque wrench settingsNmlbf ft
Inlet manifold:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 to 2113 to 16
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 to 2415 to 18
V6:
Stage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 to 83 to 6
Stage 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 156 to 11
Stage 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 to 2111 to 16
Stage 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2516 to 18
Stage 5 (after warm-up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2516 to 18
Exhaust manifold:
OHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2516 to 18
V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 to 3018 to 22
Plenum chamber to inlet manifold:
2.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 to 105 to 7
2.4 & 2.9 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 to 2515 to 18
Carburettor bolts (DOHC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 106 to 7
Fuel pump bolts (mechanical pump) . . . . . . . . . . . . . . . . . . . . . . . . . . .14 to 1810 to 13
Fuel pipe to fuel-injection pressure regulator:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 to 2011 to 15
2.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 to 127 to 9
Pressure regulator base nut/bolt:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 to 2515 to 18
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 to 127 to 9
V6:
2.8 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 to 2011 to 15
2.4 & 2.9 litre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 to 117 to 8
Fuel rail bolts:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 to 117 to 8
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 to 2615 to 19
Exhaust downpipe flange nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 to 4026 to 30
Exhaust clamps and U-bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 to 4528 to 33
Exhaust gas oxygen sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 to 7037 to 52
Throttle body bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 to 117 to 8
Idle speed control valve bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 to 117 to 8
Fuel filter unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 to 2010 to 15
Fuel rail temperature sensor (DOHC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 116 to 8
Fuel rail temperature switch (2.4 & 2.9 litre) . . . . . . . . . . . . . . . . . . . . . .20 to 2515 to 18
HEGO sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 to 7037 to 52
All models are fitted with a rear-mounted fuel
tank. Fuel is conveyed from the tank by a
mechanical or electrical fuel pump, according tomodel and equipment, to the carburettor or fuel-
injection system. The delivery capacity of the
fuel pump exceeds the maximum demands of
the system, so excess fuel is constantly returned
to the tank. This helps to avoid the problems of
vapour locks in the fuel lines.
Carburettor models have a twin venturidowndraught carburettor of Pierburg
manufacture on 1.8 litre models and Weber on
2.0 litre models. Both makes of carburettor
have an automatic choke.
Fuel-injection, when fitted, is of the Bosch
L-Jetronic type. This system is under the
control of the EEC IV module.
1General information and
precautions
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