Worksho~
Manual
Rolls-Royce Silver Shadow
B
Bentley
T
Series
Chapter
L
As a visual aid to identifying the two types of anti-
freeze 'Prestone Anti-freeze and Summer Coolant'
UT
184
is coloured turquoise blue and 'Prestone
I1
WintedSummer Concentrate' is coloured fluorescent
green.
Cooling system
-
To drain
1.
Drive the car onto a ramp.
2.
Firmly apply the handbrakelparking brake and
remove the gear range selector thermal cut-out from
the fuseboard.
3.
Switch on the ignition but do not start the
engine.
4.
Move either the UPPER or LOWER air con-
ditioning switch into the fully clockwise position.
This will open the heater water tap and assist the
draining operation.
5.
Switch off the ignition and carefully remove
the radiator filler cap.
6.
Raise the car to a convenient working height.
7.
Place containers under the car to collect the
coolant. Attach a length of rubber hose from the
radiator drain tap to direct the coolant into the
containers.
8.
Open the radiator drain tap and drain the
coolant from the radiator. When completed, remove
the drain plugs to drain the residue from the crank-
case.
Radiator
-
To flush
1.
Drain the cooling system as described previously
under the heading, Cooling system
-
To drain.
Heater matrix
-
To flush
1.
Detach the matrix hose at the electrically
operated water tap and disconnect the return hose at
the coolant pump.
2.
Fit a waste pipe to the inlet connection of the
heater matrix.
3.
Flush the matrix for approximately
30
minutes.
4.
Examine the cylinder head to heater tap hose
and matrix inlet for deterioration. Renew if necessary.
Removal and fitting of heater
and matrix
Refer to Chapter
C
-
Air conditioning system.
FIG.
12 CYLINDER BLOCK DRAIN
1
Oil filter
2
Filter bowl securing setscrew
3
Cylinder block drain
4
Engine dip-stick tube
5
Front hydraulic accumulator
Cooling system
-
To fill
To facilitate filling the cooling system the UPPER or
LOWER air conditioning switches on the
facia
should be in the fully clockwise position.
1.
Ensure all hose connections and drain plugs
are fitted and secure. Check that the radiator drain
tap is closed.
2.
Remove the inlet and outlet coolant hoses.
3.
Fit a waste pipe to the upper (inlet) connection
0
of the radiator.
4.
Apply mains water under pressure through the
lower (outlet) connection of the radiator. This should
remove all loose sediment in approximately
30
minutes.
Do not under any circumstances use a strong
alkaline compound or detergent to clean the cooling
system. Such compounds have a detrimental chemical
action on aluminium alloys.
5.
Examine all rubber coolant hoses and renew
any which show signs of deterioration.
Engine
-
To flush
1. Remove the outlet hose.
2.
Remove the drain plug or drain tap from each
-
-
cylinder head.
3.
Remove the thermostat cover, withdraw the
0
thermostat and replace the cover.
4.
Fit a suitable pipe to the drain plug aperture
and apply mains water pressure to each aperture
in turn.
Flush for approximately
30
minutes, or until the
water runs clear.
5.
Fit the drain plugs, thermostat and thermostat
cover using a new gasket.
If the engine is being flushed as part of the two year
scheduled maintenance, the thermostat should be
discarded and a new one fitted.
6.
Examine all rubber coolant hoses and renew
any which show signs of deterioration.
To Next Page
Loading...
