Rover 214 & 414 Service and Repair Manual - Rover club
Rover 214 & 414 Service and Repair Manual - Rover club
Rover 214 & 414 Service and Repair Manual - Rover club
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6.7 Testing the thermostat<br />
Ensure that neither touches the side of the<br />
container (see illustration).<br />
8 Heat the water <strong>and</strong> check the temperature<br />
at which the thermostat begins to open.<br />
Compare this value with that specified.<br />
Continue to heat the water until the<br />
thermostat is fully open. The temperature at<br />
which this should happen is stamped in the<br />
unit’s end (see illustration). Remove the<br />
thermostat <strong>and</strong> measure the height of the fully<br />
opened valve, then allow the thermostat to<br />
cool down <strong>and</strong> check that it closes fully.<br />
9 If the thermostat does not open <strong>and</strong> close<br />
as described, if it sticks in either position, or if<br />
it does not open at the specified temperature,<br />
then it must be renewed.<br />
Refitting<br />
10 Refitting is the reverse of the removal<br />
procedure,<br />
illustration):<br />
noting the following (see<br />
a) Clean the thermostat housing, housing<br />
cover <strong>and</strong> cylinder block/crankcase<br />
mating surfaces thoroughly.<br />
b) Always fit a new housing cover gasket<br />
<strong>and</strong> O-ring. Smear the O-ring with grease<br />
to aid refitting.<br />
c) Tighten all bolts to their specified torque<br />
wrench settings (where given).<br />
d) Ensure the coolant hose clips are<br />
positioned so that they do not foul any<br />
other component, then tighten them<br />
securely.<br />
e) Refit any components removed for<br />
improved access.<br />
f) Refill the cooling system as described in<br />
Chapter 1.<br />
7.5 Removing the coolant pump<br />
6.8 Note temperature specification<br />
stamped on thermostat end<br />
7 Coolant pump -<br />
removal <strong>and</strong> refitting 4<br />
Removal<br />
1 Coolant pump failure is usually indicated by<br />
coolant leaking from the gl<strong>and</strong> behind the<br />
pump bearing, or by rough <strong>and</strong> noisy<br />
operation, usually accompanied by excessive<br />
pump spindle play. If the pump shows any of<br />
these symptoms then it must be renewed as<br />
follows.<br />
2 Drain the cooling system.<br />
3 Remove the timing belt.<br />
4 Noting the location of the pillar bolt(s),<br />
unscrew the five bolts securing the coolant<br />
pump to the cylinder block/crankcase, then<br />
unscrew the single bolt securing the pump to<br />
the timing belt upper left-h<strong>and</strong> (inner) cover.<br />
5 Withdraw the coolant pump <strong>and</strong> discard its<br />
sealing ring which should be renewed<br />
whenever it is disturbed. Carefully clean the<br />
cylinder block/crankcase mating surface <strong>and</strong><br />
the pump socket (see illustration).<br />
Refitting<br />
6 On refitting, install the pump using a new<br />
sealing ring <strong>and</strong> tighten all bolts to the<br />
specified torque wrench settings.<br />
7 The remainder of the refitting procedure is<br />
the reverse of removal.<br />
8 Electric cooling fan -<br />
testing, removal <strong>and</strong> refitting 2<br />
Note: On models equipped with air<br />
conditioning, there are two switches fitted to<br />
the right-h<strong>and</strong> side of the radiator, the lower of<br />
these is the cooling fan switch.<br />
Testing<br />
1 The cooling fan motor is supplied with<br />
current via the ignition switch, fuse 4 <strong>and</strong> the<br />
cooling fan relay. The relay is energised by the<br />
radiator-mounted thermostatic switch which<br />
is fed via fuse number 15.<br />
1689 <strong>Rover</strong> <strong>214</strong> & <strong>414</strong> Updated Version 09/97<br />
Cooling, heating <strong>and</strong> ventilation systems 3•5<br />
6.10 Thermostat housing <strong>and</strong> coolant<br />
hoses refitted<br />
2 If the fan does not appear to work, first<br />
check that both fuses are in good condition<br />
<strong>and</strong> have not blown. Run the engine until<br />
normal operating temperature is reached,<br />
then allow it to idle. If the fan does not cut in<br />
within a few minutes, switch off the ignition<br />
<strong>and</strong> disconnect the two wires from the<br />
thermostatic switch. Bridge these two wires<br />
with a length of spare wire <strong>and</strong> switch on the<br />
ignition. If the fan now operates, the<br />
thermostatic switch is probably faulty <strong>and</strong><br />
must be tested further as described in<br />
Section 9.<br />
3 If the fan still fails to operate, check that full<br />
battery voltage is available at the switch’s<br />
light green <strong>and</strong> grey wire terminal. If not,<br />
check the feed for a blown fuse or other fault<br />
such as a broken wire. If the feed is good,<br />
check the cooling fan relay, see Chapter 12. If<br />
the relay operates correctly, check for<br />
continuity between the fan motor black wire<br />
terminal <strong>and</strong> a good earth point on the body. If<br />
not, then the earth connection is faulty <strong>and</strong><br />
must be remade. The circuit earth connection<br />
is one of those at earth header 1, attached to<br />
the left-h<strong>and</strong> inner wing panel next to the<br />
battery.<br />
4 If the switch <strong>and</strong> wiring are in good<br />
condition, the fault must be in the motor itself.<br />
This can be checked by disconnecting it from<br />
the wiring loom <strong>and</strong> connecting a 12 volt<br />
supply directly to it. If the motor does not<br />
work then it must be renewed.<br />
Removal<br />
5 Drain the cooling system, then jack up the<br />
front of the vehicle <strong>and</strong> support it securely on<br />
axle st<strong>and</strong>s.<br />
6 From underneath the front of the vehicle,<br />
slacken <strong>and</strong> remove the three bolts securing<br />
the bumper flange to the body. Remove the<br />
seven bolts securing the front undercover<br />
panel to the body <strong>and</strong> remove the panel.<br />
7 Remove the air cleaner metal intake duct<br />
<strong>and</strong> intake hose.<br />
8 Slacken the retaining clips <strong>and</strong> disconnect<br />
the top hose from both the radiator <strong>and</strong><br />
engine. Position the hose clear of the radiator<br />
so that it does not hinder removal.<br />
9 Disconnect the radiator cooling fan wiring<br />
connector.<br />
3