Land Rover Rover 214 Repair 1689 03 Rover Manual

3
1689 Rover 214 & 414 Updated Version 09/97
Chapter 3
Cooling, heating and ventilation systems
Air conditioning compressor drivebelt - inspection, adjustment 
and renewal  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Air conditioning refrigerant - level check . . . . . . . . . . . . . . . . . . . . . . 14
Air conditioning system components - removal and refitting  . . . . . . 15
Coolant pump - removal and refitting  . . . . . . . . . . . . . . . . . . . . . . ....

1 General information and
precautions
General information
The cooling system is of the pressurised,
pump-assisted thermo-syphon type. It
consists of the front-mounted radiator, a
translucent expansion tank mounted on the
right-hand inner wing, a thermostatically-
controlled electric cooling fan mounted on the
rear of the radiator, a thermostat and a
centrifugal coolant pump, as well as the
connecting hoses (see illustration). The
coolant pump is driven by the engine timing
belt.
The system is of the...

4 Cooling system hoses-
renewal
2
1If inspection of the cooling system reveals a
faulty hose, then it must be renewed as
follows.
2First drain the cooling system. If the coolant
is not due for renewal, it may be re-used if
collected in a clean container.
3To disconnect any hose, use a screwdriver
to slacken the clips then move them along the
hose clear of the outlet. Carefully work the
hose off its outlets. Do not attempt to
disconnect any part of the system when still
hot.
4Note that the radiator hose...

Expansion tank
8Slacken and remove the three bolts
securing the expansion tank to the body.
Unscrew the expansion tank cap and tip out
its contents into a suitable container.
9Slacken the retaining clips then disconnect
both the hoses from the expansion tank and
remove the tank from the vehicle.
Inspection
Radiator
10If the radiator was removed because of
clogging (causing overheating) then try
reverse flushing or, in severe cases, use a
radiator cleanser strictly in accordance with
the manufacturer’s...

Ensure that neither touches the side of the
container (see illustration).
8Heat the water and check the temperature
at which the thermostat begins to open.
Compare this value with that specified.
Continue to heat the water until the
thermostat is fully open. The temperature at
which this should happen is stamped in the
unit’s end (see illustration). Remove the
thermostat and measure the height of the fully
opened valve, then allow the thermostat to
cool down and check that it closes fully.
9If the...

10Undo the four nuts securing the cooling
fan cowling to the rear of the radiator and
manoeuvre the fan assembly out of the engine
compartment (see illustrations).
11To dismantle the assembly, first prise off
the fan retaining circlip, then lift the fan off the
motor spindle. Undo the three nuts which
secure the motor assembly to the cowling
then release the motor wiring and connector
and separate the motor and cowling (see
illustration).
Refitting
12Refitting is a reverse of the removal
procedure,...

controls the inlet manifold heater circuit (see
illustration).
11The switch contacts should be closed to
the ON position (ie: continuity should exist)
only at temperatures below 50°C. Remove the
switch and test it as described in para-
graphs 2 to 4.
Thermostatically-operated vacuum
switch - carburettor engines equipped
with catalytic converters
12This switch is screwed into the thermostat
housing.
13To test the switch, fit two suitable lengths
of hose to the switch and suspend the switch
in a pan of...

remove the heater lower mounting nut which
is situated just to the left of the matrix outlets
(see illustrations).
3Working inside the vehicle, remove the
facia.
4Slacken and remove the two retaining
screws and remove the blower motor-to-
heater unit duct (see illustration). On models
equipped with air conditioning, the evaporator
unit is fitted in place of the duct. It may be
possible to gain the necessary clearance
required to disengage the evaporator from the
heater unit by removing the mounting...

retaining nut. Slacken and remove the five
support bracket retaining bolts and remove
the bracket from the vehicle (see
illustrations).
8Disconnect the air recirculation cable inner
from the flap and free the cable outer from the
blower motor.
9Prise out the stud securing the rear heater
duct sleeve to the bottom of the heater unit,
then slide the sleeve down to disengage it
from the unit (see illustration).
10Disconnect the wiring connectors from
the heater control panel, then remove the two
upper...

Heater blower motor
15Undo the two glovebox retaining screws
then partially withdraw the glovebox until
access can be gained to the glovebox damper
to facia screw. Undo the damper screw and
remove the glovebox and damper (see
illustration).
16Slacken and remove the four glovebox
support rail mounting bolts and remove the
rail (see illustration).
17Slacken and remove the two retaining
screws and remove the blower motor-to-
heater unit duct (see illustration). On models
equipped with air conditioning, the...