Rolls-Royce Corniche - Coolant Pump (Early Cars) View; Coolant Pump-To Remove

Rolls-Royce Silver Shadow & Bentley T Series
Workshop Manual
Chapter L
Coolant pump - To remove
For normal service and maintenance, including
reconditioning, it is not necessary to remove the
pump casing from the engine.
All moving parts can be withdrawn, complete
with the bearing housing
(see Figs. L5 and L6)
1. Drive the car onto a ramp, chock the rear
wheels and remove the gear range selector thermal
cut-out. Raise to a convenient working height.
2. Place a clean container under the car to
collect the coolant. Attach a length of rubber hose
from the radiator drain tap to direct coolant into
the container.
3. Open the radiator drain tap (see Fig. Ll)
and drain the coolant from the radiator (see
Cooling system
- To drain, Section Ll). Close
the drain tap, cover the container to prevent con-
tamination of the fluid then lower the car.
4. Remove the header tank from the radiator.
5.
Remove
the fan from the extension cone, or
if a fan and viscous coupling are fitted, dismantle
the upper half of the fan cowl to facilitate
iemoval of the fan and coupling assembly. Take
care not to damage the matrix fins.
6. Remove the four nuts and washers securing
the viscous coupling, fan and pulley to the driving
flange.
When removed, it is not necessary to separate
the fan and coupling unless one of them is to be
replaced.
Note
When the viscous coupling is removed, it should
be stored with the bi-metal strip downwards.
7. Release the tension on all drive belts.
Remove the belts.
8. Slide the coolant pump pulley forward
carefully to reveal the bearing housing setscrews.
9. Unscrew the six setscrews which secure the
bearing housing to the coolant pump casing.
10. Detach the bearing housing containing all
the moving parts of the pump. It will be possible
to manoeuvre the pulley off the assembly at this
stage.
Section 14
COOLANT PUMP
FIG. 15 COOLANT PUMP (EARLY CARS)
1 Driving shaft
2 Bearing housing
3 Thrust collar
4 Coolant pump casing
5 Impeller
6 Sealing gland
7 Bearing housing
8 Driving spider
11. Remove and discard the '0' ring from the
pump casing.
If it is necessary to remove the pump casing
from the engine, carry out the following operations.