Filter
Top Products
10 Apply suitable sealant to the threads of
the drain plug, then refit and tighten the plug.
11 Dispose of the drained coolant safely, or
keep it in a covered container if it is to be
re-used.
12 If required, the system can be flushed
through as described in Section 2 of Chap-
ter 2.
13 Before attempting to refill the cooling
system, make sure that all hoses have been
reconnected, that the hoses and clips are in
good condition, and that the clips are tight.
Also ensure that the cylinder block drain plug
has been refitted and tightened. Note that an
antifreeze mixture must be used all year round
to prevent corrosion of the engine
components - refer to Section 3, Chapter 2.
14 Open the bleed screw in the top of the
expansion tank (photo).
15 Remove the expansion tank cap, and fill
the system by slowly pouring the coolant into
the expansion tank to prevent air locks from
forming.
16 Top up the coolant until liquid free from air
bubbles emerges from the radiator bleed
screw orifice, then close the bleed screw.
17 Continue topping up until the coolant
reaches the Maximum mark on the expansion
tank.
18 Start the engine and run it until it reaches
normal operating temperature, then stop the
engine and allow it to cool. Normal operating
temperature is reached when the cooling fan
cuts into operation. Feel the radiator top hose
to ensure that it is hot. If cool, it indicates an
air lock in the system.
19 Check for leaks, particularly around
disturbed components. Check the coolant
level in the expansion tank, and top up if
necessary. Note that the system must be cold
before an accurate level is indicated. There is
a risk of scalding if the expansion tank cap is
removed whilst the system is hot.
Radiator (and cooling fan)
- removal and refitting ¡
20 Disconnect the battery negative lead.
21 Detach the wiring connectors from the
cooling fan and the fan switch located in the
radiator (photos).
22 If preferred, the cooling fan unit can be
removed separately from the radiator, by
undoing the attachment bolts and carefully
withdrawing the unit upwards from the
vehicle. Take care not to damage the radiator
core as it is lifted clear (photo).
23 Drain the cooling system as described
earlier in this part of the Section, but note that
it will not be necessary to remove the cylinder
block drain plug.
24 Undo the retaining screws and remove
the front grille panel.
25 Loosen off the retaining clips and detach
the upper coolant hose and the expansion
hose from the radiator.
26 Note their direction of fitting, then prise
free the radiator retaining clips. Carefully lift
the radiator from the car.
27 Refitting is a reversal of the removal
procedure. Ensure that as the radiator is
lowered into position, it engages in the two
rubber location grommets.
28 With the radiator (and cooling fan) refitted,
top up the cooling system as described earlier
in this Section (photo).
Thermostat -
removal and refitting ¡
Note: A new thermostat cover gasket must be
used on refitting.
29 Drain the cooling system as described
earlier in this Section, but note that there is no
need to drain the cylinder block.
30 Disconnect the coolant hoses from the
thermostat cover (situated at the gearbox end
of the cylinder head).
31 Unscrew the two thermostat cover
securing bolts, noting that the left-hand bolt
may also secure the HT lead bracket, and
remove the thermostat/cover assembly.
Recover the gasket (photo).
32 If faulty, the thermostat must be renewed
complete with the housing as an assembly.
33 If desired the thermostat can be tested as
described in Chapter 2.
34 Refitting is a reversal of removal, bearing
in mind the following points.
Supplement: Revisions and information on later models 13•57
8C.21B Cooling fan switch wiring
connector
8C.21A Cooling fan and wiring connector8C.14 Bleed screw location on top of the
expansion tank (arrowed)
8C.31 Thermostat unit removal on the
1372 cc ie engine (distributor removed for
clarity)
8C.28 Topping up the radiator coolant level
on the 1372 cc ie engine. Note orientation
of radiator retaining clip (arrowed)
8C.22 Cooling fan to radiator securing bolt
13