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