cooling FORD GRANADA 1985 Service User Guide

together, guide the torque converter studs
through the holes in the driveplate. When the
engine is positioned flush with the engine
adapter plate and the transmission housing,
check that the torque converter is free to move
axially a small amount before refitting and
tightening the engine-to-transmission bolts.
6Do not tighten the torque converter-to-
driveplate nuts until the lower engine-to-
transmission bolts have been fitted and
tightened.
7Ensure that the roadwheels and the steering
wheel are in the straight-ahead position then
align the marks made on removal and
reconnect the intermediate shaft to the
steering gearing. Tighten the clamp bolt to the
specified torque.
8Reconnect the selector rod and adjust as
described in Chapter 7, PartB.
9Refit the propeller shaft.
10Refit the exhaust system.
11Fill the engine with the correct grade and
quantity of oil.
12Check the throttle cable adjustment. Where
necessary, also adjust the speed control cable
in the same way so that there is only a small
amount of slack present in the cable.
13Reconnect the coolant hoses to the water
pump housing.
14Fill the cooling system.
15Check and if necessary top-up the
transmission fluid level.
16Tighten all fixings to the specified torque,
where applicable.
Proceed as described in Part A, Section 23
of this Chapter but note that on certain
models, it may be necessary to unbolt the
engine mounting brackets from the cylinder
block to allow sufficient clearance to remove
the mountings.
1Refer to Part A, Section 8 of this Chapter,
paragraphs 1 to 8 inclusive.
2A selection of splined and Torx sockets will
be required to remove many of the bolts when
dismantling the engine.
3Before dismantling the main engine
components, the following externally mounted
ancillary components can be removed.
a)Inlet manifold (and carburettor, where
applicable).
b)Exhaust manifold.
c)Alternator.
d)Water pump, and thermostat.
e)Water pump/alternator drivebelt tensioner.
f)Distributor cap, HT leads and spark plugs.
g)Oil pressure warning lamp switch.
h)Crankshaft speed/position sensor.
i)Oil filter.
j)Dipstick.
k)Engine mounting brackets (if not already
done).
l)Crankcase ventilation pipe and hoses.m)Clutch.
n)Alternator mounting bracket.
o)Air conditioning compressor mounting
bracket (where applicable).
p)Engine lifting brackets.
Note: A puller will be required to remove the
crankshaft pulley. A new crankshaft pulley bolt,
a new timing chain tensioner plunger
assembly, new upper and lower timing chain
cover gaskets and a new camshaft cover
gasket and reinforcing sleeve sealing rings
must be used on refitting.
1If the engine is in the car, carry out thefollowing 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 carburettor models, remove the air
cleaner.
d)On fuel-injection models, remove the air
inlet hose, plenum chamber and air
cleaner lid as an assembly.
e)Disconnect the breather hose from the
camshaft cover.
f)Remove the distributor cap and HT leads,
and the rotor arm and housing.
2Proceed as described in paragraphs 2 to 11
inclusive of Section 18 (see illustration).
3Remove the water pump/alternator
drivebelt.
15Timing chain and sprockets -
removal and refitting
14Engine dismantling - general
information
13Engine mountings - renewal
2B•8DOHCengine
1 Upper timing chain guide
2 Exhaust camshaft sprocket
3 Timing chain
4 Lower timing chain guide
5 Crankshaft sprocket (double)
6 Crankshaft
7 Oil pump chain tensioner
8 Oil pump drive chain
9 Oil pump10 Oil pressure relief valve
11 Oil passage to timing chain tensioner
plunger
12 Plug
13 Timing chain tensioner plunger
14 Timing chain tensioner sprocket
15 Timing chain tensioner arm
16 Inlet camshaft sprocket
17 Copper chain links
15.2 Timing chain, oil pump drive chain and associated components
procarmanuals.com

prevent the chain from dropping into the
timing case, as during removal.
18Locate the double chain sprocket loosely
over the end of the crankshaft (larger sprocket
nearest the crankcase), with the timing mark
pointing vertically down.
19Fit the chain over the inner, larger
sprocket, aligning the coppered link in the
chain with the timing mark on the sprocket
(see illustration).
20Coat the threads of the lower timing chain
guide lower securing bolt with a suitable
thread-locking compound.
21Introduce the lower timing chain guide
through the top of the timing case,
manipulating the chain around the guide as
necessary, then fit the chain guide lower
securing bolt and tighten it finger-tight.
22Push the double chain sprocket onto the
crankshaft, engaging the notch in the sprocket
with the groove in the end of the crankshaft.
23Proceed as described in paragraphs 34 to 42
of Section 18, but when fitting the chain over the
camshaft sprockets, align the timing mark on
each sprocket between the two corresponding
coppered links in the chain.
24Coat the threads of the lower timing chain
guide upper securing bolt with a suitable
thread-locking compound, then fit the bolt and
tighten it finger-tight.
25Proceed as described in paragraphs 43 to 46
of Section 18.
26Tighten the two chain guide securing bolts
to the specified torque.
27Proceed as described in paragraphs 47 to 55
of Section 18.
28Fit the oil pump drive chain around the
outer crankshaft sprocket and the oil pump
sprocket, then refit the oil pump sprocket, and
tighten the securing bolt to the specified
torque. If necessary, a screwdriver can be
inserted through one of the holes in the
sprocket to prevent it from turning as the
securing bolt is tightened.
29Refit the oil pump drive chain tensioner,
and tighten the securing bolt to the specified
torque.
30Refit the Woodruff key to the end of the
crankshaft.
31Inspect the oil seal in the lower timing
chain cover. If the oil seal is in good condition,the cover can be refitted as follows, but if the
seal is damaged, or has been leaking, a new
seal should be fitted to the cover. If necessary,
carefully prise the old oil seal from the cover
using a screwdriver, and drive in the new seal
using a suitable metal tube. Make sure that the
seal lip faces into the engine. Note that the oil
seal should be fitted dry. Take care not to
damage the timing chain cover (see
illustration).
32Fit the lower timing chain cover using a
new rubber gasket (see illustration).
33Loosely refit the timing chain cover
securing bolts.
34Refit the crankshaft pulley to the end of the
crankshaft, and draw the pulley onto the
crankshaft using the original securing bolt, at the
same time centering the lower timing chain cover.
35With the lower timing chain cover
centralised, and the pulley fully home on the
crankshaft, remove the old securing bolt, then
fit a new bolt.
36Tighten the new crankshaft pulley bolt to
the specified torque, in the two stages given in
the Specifications at the beginning of this
Chapter. Prevent the crankshaft from turning
as during removal.
37Tighten the lower timing chain cover
securing bolts to the specified torque.
38Refit the drivebelt tensioner assembly,
ensuring that the lug on the rear of the
tensioner bracket engages with the
corresponding hole in the cylinder block, and
tighten the securing bolt.39Swing the alternator into position to align
the upper mounting bolt hole with the
corresponding hole in the drivebelt tensioner
assembly, then refit the upper mounting bolt,
and tighten the upper bolt and the lower
through-bolt.
40Refit the water pump/alternator drivebelt.
41If the engine is in the vehicle, reverse the
operations described in paragraph 1 of
Section 15.
42Where applicable, refill the cooling
system.
1Examine all the teeth on the camshaft and
crankshaft sprockets. If the teeth are “hooked”
in appearance, renew the sprockets.
2Examine the chain tensioner plastic
sprocket for wear. If excessive wear is evident,
the complete tensioner assembly must be
renewed as the sprocket cannot be renewed
independently.Note that the tensioner plunger
assembly must be renewed whenever the
timing chain is removed.
3Examine the timing chain for wear. If the
chain has been in operation for a considerable
time, or if when held horizontally (rollers
vertical) it takes on a deeply bowed
appearance, renew it.
Note: The cylinder head must not be removed
when the engine is warm. Refer to the note at
the beginning of the following Section before
proceeding.
1Disconnect the battery negative lead.
2On carburettor models, remove the air
cleaner.
3On fuel-injection models, remove the air
inlet hose, plenum chamber, and air cleaner lid
as an assembly.
4Drain the cooling system.
5Disconnect the heater coolant hose from
the inlet manifold (see illustration).
17Cylinder head - removal and
refitting (engine in vehicle)
16Timing chain, sprockets and
tensioner - examination and
renovation
2B•10DOHCengine
15.19 Coppered link in timing chain aligned
with crankshaft sprocket timing mark
(arrowed)
17.5 Disconnecting the heater coolant hose
from the inlet manifold
15.31 Fitting a new lower timing chain
cover oil seal15.32 Lower timing chain cover gasket in
position. Ensure that lug on gasket
engages with notch in cover (arrowed)
procarmanuals.com

6Disconnect the breather hose from the
camshaft cover, and unbolt the hose bracket
from the left-hand side of the cylinder head
(see illustration).
7Unscrew the securing bolt and disconnect
the earth lead from the left-hand rear of the
cylinder head.
8Remove the distributor cap and HT leads,
and the rotor arm and housing, as applicable.
If necessary, mark the HT leads to aid refitting.
9The cylinder head can be removed either
with or without the manifolds and fuel rail,
where applicable (it is easiest to remove the
head complete with the manifolds and fuel
rail). If desired, the inlet manifold and the fuel
rail can be unbolted and moved to one side,
leaving the wires, hoses, pipes and cables
connected, but care must be taken not to
place any strain on them.
10Unscrew the three securing nuts and
disconnect the exhaust downpipe from the
manifold. It may be necessary to jack up the
front of the vehicle to gain access to the nuts
(in which case apply the handbrake and
support the front of the vehicle securely on
axle stands) (see “Jacking”). Discard the
gasket.
11If the inlet manifold and the fuel rail (where
applicable) are to be removed with the cylinder
head, disconnect all relevant wires, hoses,
pipes and cables, otherwise, unbolt the
manifold and the fuel rail, and move them to
one side, ensuring that they are adequately
supported. If the fuel rail is unbolted, be
prepared for fuel spillage, and take adequate
fire precautions.
12Refer to the procedure described in
paragraphs 2 to 19 of Section 18 to complete
cylinder head removal.
13Commence refitting by referring to
paragraphs 20 to 55 of Section 18, then
reverse the procedure described in
paragraphs 1 to 11 of this Section, noting the
following points.
a)Use a new gasket when reconnecting the
exhaust downpipe to the manifold.
b)Ensure that the HT leads are reconnected
correctly.
c)Fill the cooling system.Note: New cylinder head bolts, a new cylinder
head gasket, a new timing chain tensioner
plunger assembly, a new upper timing chain
cover gasket, and a new camshaft cover
gasket and reinforcing sleeve sealing rings
must be used on refitting. It is essential that
the three smaller M8 bolts are of the latest type
with hexagonal heads, not the earlier Torx type
(see illustration).
1With the manifolds removed, proceed as
follows.
2Unscrew the eleven bolts and four nuts, and
remove the camshaft cover. Recover the gasket.
3Unscrew the four securing bolts and three
studs, and remove the upper timing chain
cover. Note the locations of the studs to aid
refitting.
4Using a spanner on the crankshaft pulley,
turn the crankshaft to bring No 1 piston to the
firing point (TDC). With No 1 piston at the firing
point, the timing marks on the camshaft
sprockets should be pointing away from each
other, and should be approximately level with
the top edge of the cylinder head. Timing
notches are provided in the camshaft
sprockets, and corresponding paint marks are
provided on the outside edges of the
sprockets (see illustration).
5Hold the inlet camshaft sprocket stationary
using a peg spanner which engages with thespokes of the camshaft sprocket. Unscrew the
camshaft sprocket bolt, and remove the
distributor rotor shaft (see illustration).
6Repeat the procedure given in paragraph 5
for the exhaust camshaft, but note that a spacer
is fitted in place of the distributor rotor shaft.
7Squeeze the upper timing chain guide
securing lugs together, using pliers if
necessary, and withdraw the guide from the
plate at the front of the cylinder head (see
illustration).
8Mark the position of the timing chain in
relation to the camshaft sprockets, so that the
chain can be refitted in precisely its original
position (ie, make alignment marks between
each sprocket and a corresponding link in the
chain), then slide the camshaft sprockets from
the camshafts. Withdraw the sprockets and
lay the timing chain over the exhaust side of
the timing case, having eliminated the slack in18Cylinder head - removal and
refitting (engine removed)
DOHCengine 2B•11
2B
17.6 Hose bracket bolted to cylinder head
(arrowed)18.0 Use new M8 (auxiliary) cylinder head
bolts with hexagonal heads (A), not the
earlier Torx type bolts (B)
18.4 Timing mark positions with No 1
cylinder at TDC
18.5 Removing the inlet camshaft sprocket
bolt and the distributor rotor shaft18.7 Upper timing chain guide securing
lugs (arrowed)
If a peg spanner is not available,
a tool can be made from two
lengths of steel strip (one long,
the other short) and three nuts
and bolts; one nut and bolt forming the
pivot of a forked tool with the remaining
two nuts and bolts at the tips of the “forks”
to engage with the sprocket spokes.
procarmanuals.com

meters and air inlet trunking. Also remove the
oil filler cap, which is connected to the
trunking by a crankcase ventilation hose.
5Release the securing clips and bolts and
remove the upper half of the fan shroud.
6Drain the cooling system and remove the
radiator.
7Disconnect the heater hoses from the
heater matrix and from the coolant outlet.
Unclip the hoses.
8Remove the fan and viscous clutch (where
fitted).
9Disconnect the following wiring:
a)Alternator
b)Temperature gauge sender
c)Engine management temperature sensor
d)Oil pressure switch
e)Idle speed control valve
f)Throttle position sensor
g)Injector nut-harness
h)Distributor multi-plug
i)Distributor-to-coil HT lead
10Disconnect the throttle cable. When
applicable, also disconnect the downshaft
cable or switch.
11Depressurise the fuel system and
disconnect the fuel supply and return lines
(see Chapter 4).
12Remove the steering pump and air
conditioning compressor drivebelts (as
applicable). Unbolt the steering pump and
compressor, move them aside within the limitsof their flexible hoses and support them by
wiring them to adjacent components.
13Remove the distributor cap and rotor.
14Remove the starter motor.
15Drain the engine oil. Unscrew the oil filter
with a strap or chain wrench and remove it; be
prepared for oil spillage.
16On manual gearbox models, disconnect
the clutch cable from the release lever.
17Unbolt the exhaust pipes from the
manifolds.
18On automatic transmission models, unbolt
the torque converter from the driveplate.
19Attach lifting tackle to the engine. If no
lifting eyes are fitted, pass ropes or chains
round the exhaust manifolds.
20Take the weight of the engine, then
remove the single nut on each side which
holds engine bearer to its mountings.
21From under the vehicle unbolt the engine
adapter plate from the bellhousing.
22Remove the engine-to-bellhousing bolts.
Also disconnect or unclip the battery negative
lead, the starter motor lead and the heat
shield.
23Support the transmission, preferably with
a trolley jack.
24Check that nothing has been overlooked,
then raise the engine and draw it forwards
clear of the transmission input shaft. Do not
allow the weight of the engine to hang on the
shaft, and do not lift the transmission by it.25With automatic transmission, make sure
that the torque converter stays engaged with
the oil pump in the transmission as the engine
is withdrawn.
26Lift the engine out of the engine bay and
take it to the bench.
2.4 & 2.9 litre engines
27The removal operations for these engines
are essentially as described for the 2.8 litre
version. Note the following points.
Coolant hoses
28Remove the hoses which run between the
thermostat housing and the water pump, and
the cooling system expansion tank.
29Remove the heater hoses which run
between the thermostat housing or coolant
distribution pipe and oil cooler (where fitted).
Vacuum hoses
30Disconnect the hose from the fuel
pressure regulator.
31Disconnect the hose from the plenum
chamber.
32Disconnect the hose from the throttle valve.
33Disconnect the hose from the T-piece
connector.
V6 engines 2C•7
2C
1.1 Exploded view of V6 engine
1 Water inlet connection
2 Thermostat
3 Water pump
4 Timing cover
5 By-pass hose flange
7 Camshaft thrust plate
8 Camshaft gear
9 Crankshaft gear
10 Flywheel
11 Crankshaft pilot
bearing
12 Oil seal
13 Oil pump drive shaft
14 Main bearing
15 Oil pump
It may be necessary to rock
the engine a little to release it
from the gearbox.
procarmanuals.com

Other items
34Disconnect the throttle cable from the
operating lever and bracket.
35Disconnect the right-hand exhaust
downpipe from the manifold then remove the
starter motor, the oil filter, and disconnect the
left-hand exhaust downpipe, in that order.
Refer to Part A, Section 8, paragraphs 1 to 8
of this Chapter.
Cylinder head bolts on the V6 engine may
be conventional (hexagon-headed) or Torx
type. The appropriate Torx key will be needed
to deal with the latter.
Before dismantling the engine into its main
components, the following ancillaries can be
removed. The actual items removed, and the
sequence of removal, will depend on the work
to be done.
Distributor and bracket
Spark plugs
Inlet manifold and associated items
Exhaust manifolds
Clutch
Alternator and bracket
Oil pressure switch(see illustration) Temperature gauge sender
Engine bearer arms
Dipstick
If an oil cooler is fitted between the oil filter
and the block, remove it by disconnecting the
coolant hoses and unscrewing the central
sleeve. The cooler and seal can now be
removed. If the threaded bush is removed
from the block (it may come out with the
sleeve) it must be renewed.
The procedure is described for the engine in
the vehicle. With the engine removed, the
preliminary steps can be ignored.
2.8 litre engine
1Disconnect the battery negative lead.
2Remove the inlet manifold and associated
components.
3Unbolt the power steering pump, remove
the drivebelts and move the pump aside.
Support it by wiring it to adjacent
components.
4Remove the alternator and its bracket.
5Remove the three bolts which secure each
rocker shaft. Remove the shafts and
pushrods, keeping them in order so that they
can be refitted in the same locations.
6Unbolt the exhaust pipes from the
manifolds.
7Remove the spark plugs.8Slacken the cylinder head bolts half a turn at
a time, following the reverse sequence to that
used when tightening (see illustration 38.5).
Remove the bolts.
9Remove the cylinder heads. If they are
stuck, try to rock them free, or tap them with a
soft-faced hammer. Do nothit them directly
with a metal hammer, and do notlever in
between the joint faces.
10Recover the head gaskets.
2.4 & 2.9 litre engines
11Disconnect the battery and drain the
cooling system.
12Disconnect the radiator top hose and the
heater hose from the thermostat housing.
13Disconnect the air hoses from the throttle
valve housing (see illustration).
14Detach the two wiring plugs from the
airflow sensors (see illustrations).
15Pull the breather hose from the oil filler cap
(see illustration).
16Unclip the air cleaner cover and remove it
together with the airflow sensors and air hoses.
17Disconnect the hoses from the coolant
expansion tank.
18Disconnect the wiring from the following
components:
a)Alternator (right-hand cylinder head
removal only).
b)Coolant temperature sensors(see
illustration).
c)Idle speed control valve (see illustration).
d)Throttle valve potentiometer.
e)The fuel-injector wiring loom.8Cylinder heads - removal
7Ancillary components - removal
6Engine dismantling - general
2C•8V6 engines
7.1 The oil pressure switch is on the left-
hand side of the block
8.14b Throttle position sensor wiring plug
Vacuum nozzles arrowed
8.14a Front airflow sensor wiring plug
8.15 Oil filler breather hose (arrowed)8.18a Coolant temperature sensor location
8.13 Disconnecting the air hoses from the
throttle valve housing
procarmanuals.com

4Remove the auxiliary drivebelts.
5Remove the fan and viscous clutch if fitted).
6Jam the crankshaft, either by engaging 5th
gear and applying the handbrake, or by
removing the starter motor and having an
assistant jam a screwdriver in the starter ring
gear teeth. Unbolt the crankshaft pulley. When
the pulley is secured to a vibration damper,
also remove the damper central bolt.
7Remove the pulley or damper, using a puller
if necessary.
8Disconnect the coolant hoses from the front
of the engine, including the water pump
bypass hose.
9Disconnect the heater connecting pipe from
the timing cover and unbolt the two clips
which secure the pipe to the cover of the
cylinder block (see illustration).
10If not already done, remove the starter motor.11Remove the sump.
12Remove the nine securing bolts and
remove the timing cover complete with water
pump and thermostat.
13Turn the crankshaft to bring the marks on
the timing gears into alignment as shown (see
illustration). Note that there are two marks on
the crankshaft gear - do not get them
confused.
14Remove the bolt which secures the
camshaft gear. It should now be possible to
remove the camshaft gear by hand.
15Draw off the crankshaft gear using a puller.
Recover the Woodruff keys if they are loose.
16Clean the old gasket off the timing cover
and the cylinder block. Remove the oil seal
from the timing cover.2.4 & 2.9 litre engines
17Using the crankshaft damper centre bolt,
turn the engine until No 1 piston is at its firing
point (12°BTDC). This can be verified by
removing the distributor cap and checking that
the rotor arm is aligned with the No 1 HT lead
contact.
18Disconnect the battery negative terminal.
19Unclip the air cleaner cover and remove it
complete with air flow sensors and air hoses.
Remove the oil filler cap.
20Drain the cooling system, disconnect the
radiator upper hose from the thermostat housing.
21Disconnect the hose which runs between
the water pump and the expansion tank.
22Remove the radiator upper shroud, then
the radiator (see illustrations).
23Remove the fan from the water pump hub
noting that it has a left-hand thread.
24Disconnect the coolant hoses from the
timing cover/water pump hose stubs.
25Remove the alternator and power steering
pump drivebelts (as applicable)
26Unscrew the four bolts and remove the
crankshaft pulley.
27Lock the crankshaft by jamming the starter
ring gear teeth, and unscrew the vibration
damper centre bolt. Withdraw the damper
from the front of the crankshaft. A puller will be
required for this, preferably one which has two
screws for the tapped holes provided (see
illustrations).
28Using an engine support bar or hoist, take
the weight of the engine then unscrew the nuts
2C•10V6 engines
10.9 Heater connecting pipe clip bolts
(arrowed)
10.27a Unscrewing the vibration damper
centre bolt
10.22b Removing radiator upper shroud10.22c Manoeuvre the radiator out from
under the vehicle
10.27b Using a puller to withdraw the
vibration damper10.28a Using an engine support bar to
support the engine
10.13 Camshaft and crankshaft gear marks
in alignment (engine inverted)
Disregard the other mark on the crankshaft gear10.22a Radiator upper shroud plastic clip
and centre pin
procarmanuals.com

Chapter 3
Cooling, heating and ventilation systems
Air conditioning system - component renewal . . . . . . . . . . . . . . . . .22
Cooling fan switch - removal and refitting . . . . . . . . . . . . . . . . . . . .16
Cooling system - draining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Cooling system - filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Cooling system - flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Electric cooling fan(s) - removal and refitting . . . . . . . . . . . . . . . . . .10
Expansion tank - removal and refitting . . . . . . . . . . . . . . . . . . . . . . .14
General information and precautions . . . . . . . . . . . . . . . . . . . . . . . . .1
Heater assembly - removal and refitting . . . . . . . . . . . . . . . . . . . . .19
Heater control cables - removal and refitting . . . . . . . . . . . . . . . . . .18
Heater controls - removal and refitting . . . . . . . . . . . . . . . . . . . . . . .17
Heater coolant valve - removal and refitting . . . . . . . . . . . . . . . . . .21Heater matrix - dismantling and reassembly . . . . . . . . . . . . . . . . . .20
Radiator - inspection and repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Radiator - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Temperature gauge sender - removal and refitting . . . . . . . . . . . . .15
Thermostat - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Thermostat - testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Viscous-coupled fan - removal and refitting . . . . . . . . . . . . . . . . . . .9
Water pump/alternator drivebelt(s) - inspection, renewal and
adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Water pump/alternator drivebelt tensioner - removal and refitting .13
Water pump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .11
General
System type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed, pressurised, thermostatically controlled
Fan type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical temperature-sensitive viscous clutch, or electric
(DOHC)
Coolant
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See “Lubricants and fluids”
Capacity:
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0 litres (14.1 pints) approx
DOHC:
Carburettor models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.9 litres (13.9 pints) approx
Fuel injection models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3 litres (12.8 pints) approx
V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 litres (15.0 pints) approx
Specific gravity at 45 to 50% antifreeze concentration . . . . . . . . . . . . . 1.069 to 1.077
Expansion tank cap
Opening pressure:
SOHC and V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.85 to 1.10 bar
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 to 1.4 bar
Thermostat
Nominal rating:.
SOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88°C (190°F)
DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102°C (216°F)
V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C (180°F)
Actual opening temperature:
SOHC and DOHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85° to 89°C (185° to 192°F)
V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79° to 83°C (174° to 181°F)
Water pump drivebelt
Deflection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mm (0.4 in) approx under normal fingertip pressure at mid-
point of longest run
3•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
3
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

See Chapter 1, Section 46.
See Chapter 1, Section 46.
See Chapter 1, Section 46.
1Drain the radiator. There is no need to drain
the cylinder block. On DOHC engines the
electric cooling fan assembly must be removed
to gain the clearance to remove the radiator.
2Disconnect the top and bottom hoses from
the radiator by slackening the hose clips and
pulling off the hoses with a twisting motion
(see illustrations). Do not use excessive force
- the radiator side tanks are made of plastic.
3On OHCmodels, disconnect the small hose
running from the expansion tank to the radiator.
4On automatic transmission models, clean
around the transmission fluid cooler unions on
the radiator and disconnect them (seeillustration). Be prepared for fluid spillage;
plug or cap the cooler lines to keep dirt out.
5On models with air conditioning, disconnect
the auxiliary fan thermo-switch. If the thermo-
switch is mounted in the radiator, remove It.
6Remove the upper half of the fan shroud by
removing the two bolts and two clips (see
illustration), and the lower half which is
secured by two bolts.
7Release the two radiator top mounting clips
by pulling out the plastic plugs (see illustration).
8Raise and support the front of the vehicle.
Support the radiator and remove the two
bottom mounting bolts (see illustration).
9Carefully lower the radiator slightly to free
the top mountings, then remove it from under
the vehicle.
10If a new radiator is being fitted, transfer the
fan shrouds and mountings from the old one.
11Refit by reversing the removal operations,
then refill the cooling system.
12On automatic transmission models, check
the transmission fluid level.
1If the radiator has been removed because of
suspected blockage, reverse-flush it.
2Clean dirt and debris from the radiator fins,
using an air jet, or water and a soft brush. Be
careful not to damage the fins, or cut your
fingers. 3A radiator specialist can perform a “flow
test” on the radiator to establish whether an
internal blockage exists.
4A leaking radiator must be referred to a
specialist for permanent repair. Do not attempt
to weld or solder a leaking radiator, as
damage to the plastic parts may result.
5In an emergency, minor leaks from the
radiator can be cured by using a radiator
sealant while the radiator is in situ.
SOHC engines
1Disconnect the battery negative lead.
2Drain the cooling system. As it is not
necessary to completely drain the radiator, the
bottom hose can be disconnected from the
water pump.
3Disconnect the top hose from the
thermostat housing at the front of the cylinder
head (see illustration).
4Unscrew the bolts and remove the housing
and gasket (see illustration).
5Using a screwdriver, prise the retaining clip
from the housing, and extract the thermostat
and sealing ring (see illustrations).
6Clean the thermostat housing and cylinder
head mating surfaces. Obtain a new gasket for
reassembly, and if necessary a new sealing
ring too.
7Refit by reversing the removal operations.
7Thermostat - removal and
refitting
6Radiator - inspection and repair
5Radiator - removal and refitting
4Cooling system - filling
3Cooling system - flushing
2Cooling system - draining
Cooling, heating and ventilation systems 3•3
3
5.2a Radiator top hose5.2b Radiator bottom hose (A)
Also shown are automatic transmission fluid
cooler lower union (B) and hose to expansion
tank (C)5.4 Transmission fluid cooler upper union
5.6 Fan shroud clip5.7 Pull out the plug to release the radiator
top mounting5.8 One of the radiator bottom mounting
bolts (arrowed)
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