Coolant Pump-To Fit; Belt Tensioning - Rolls-Royce Silver Shadow Workshop Manual

Rolls-Rovce Silver Shadow ti Bentley
T
Series
Workshop Manual
impeller bore ale flee from burrs.
8 . I.ightly srncar the contact surfaces with
Kctinax ' A ' grcase.
$1.
P r e s s the impeller into position on the shaft.
The inner face of the impeller must be flush with
the end of the shaft.
10. Spin rhc assembly to ensure the shaft rotates
free1
y .
Coolant pump
-
To fit
If the coolant pump casing was detached from the
engine it should be fitted by reversing the proce-
dure given for i t s removal. A new Neoprene sealing
strip should be fitted to the bottom edge of the
casing.
1. Remove any burrs which may exist on the
joint face of the pump casing by lightly stoning
with a fine carborundum stone.
2. Modify a new coolant pump casing gasket to
suit the coolant pump casing.
3 . All bolts should be tightened to the standard
torque tightness figures, relative to s i z e , shown
in Chavter
P .
Chapter
L
Early cars
-
Saginaw steering pump ( s e e Ftg.
L9, diagram B )
Spring balance load applied between
-
Crankshaft and coolant pump
7,26 kg. (16 lb.)
Steering pump and generator
3,60 kg.
(
8 lb.)
Early refrigerated cars
-
Holbourn Eaton steering
pump ( s e e Fig. L9, diagram C )
Spring balance load applied between
-
Steering pump and coolant pump
3,6 kg. (8 lb.)
Refrigeration compressor and
2,7
kg. (6 lb.)
alternator
Later refrigerated cars
-
Saginaw steering pump
( s e e Fig. L9, diagram
D )
Spring balance load applied between
-
Crankshaft and coolant pump
7,26 kg. (16 lb.)
Coolant pump and alternator
3,6 kg. (8 lb.)
Steering pump and refrigeration
4,l kg. (9 lb.)
compressor
Later refrigerated cars
-
Saginaw steering pump
and fitted with air injection pump for exhaust
emission control
( s e e Fig. L9, diagram E )
4. F i t the belt driven auxiliaries a s described in
Chapter U for the air injection pump, Chapter N
for
Crankshaft to cooling pump
the steering pump, Chapter C for the refrigeration
Load may be applied on either s i d e of the belt run.
Belt tension meter
compressor and Chapter M for the alternator.
23 kg. (50 Ib.)
Spring balance
5.
Ensure a new strip of polyether foam is
4,l
kg. ( 9 lb.)
fitted between the upper quandrants of the fan cowl
Coolant pump to alternator
and radiator, before securing.
Load may be applied on either side of the belt run.
6 . Examine all hoses for deterioration and renew
Belt tension meter
any that are unserviceable. Check the security of
23
kg.
(50
lb.)
Spring balance 3,6 kg.
(
8 lb.)
all worm drive clips.
7.
Fill the cooling system with the correct
anti-freezelwater mixture a s shown in Section
L1
Cooling system
-
T o fill, pouring slowly to avoid
air locks.
8. Carefully examine all joints and hoses for
leaks.
Belt tensioning (see Figs. 18 and 19)
The belt tensioning recommended for the various
engine driven external auxiliaries must be checked
at a point midway between the two pulleys by the
use of a belt tension meter ( s e e Fig. L8), or by
applying a spring balance to give a
9,5
mm.
( 3 / ,
in.) belt deflection.
In a pair of belts, if the tension of one belt
differs markedly from the other, a new matched
Steering pump to refrigeration compressor
Load must be applied on the top run of the belts.
Each belt to be checked individually.
Belt tension meter
32 kg.
(70
Ib.)
Spring balance
4,l
kg. (
9
lb.)
Coolant pump to air injection-pump (car fitted
with exhaust emission control system
Load may be applied on either side of the belt run.
Belt tension meter
18
kg.
(40
lb.)
Spring balance
5,44 kg. (12 lb.)
The difference between the spring balance loads
for similar belt tension meter loads i s due to the
varying lengths of belt between the individual
pulley centres.
pair must be fitted.
Later standard cars
-
Alternator and Saginaw
Belt dressing must not be applied to prevent
steering pump ( s e e Fig. L9, diagram
F )
slip.
Spring balance load applied between
-
Early cars
-
Holbourn Eaton steering pump
( s e e
Coolant pump and alternator
Fzg.
L3
diagram
A )
4,l
kg.
(9
lb.)
Crankshaft and coolant pump
3,6 kg. (8 lb.)
Spring balance load applied between
-
. .
- -
Steering pump and coolant pump
3,6 kg. (8 lb.)
Crankshaft and generator 2,7
kg.
(6 Ib.)