Workshop
Manual
Rolls Royce Silver Shadow
b
Bentlev
T
Series
Chapter
W
10. Remove the lower bearing cage and rollers from
the housing.
1 1. Remove the operating lever.
12. Unscrew the nuts and remove the washers
securing the end cover and remove the cover together
with the joint. Discard the joint.
Remove the piston assembly from the housing.
Bearings, actuating lever, piston shaft-
To inspect
1. Wash all components thoroughly in para6
prior to inspection.
2. Inspect the bearings, shaft, operating lever and
piston assembly for signs of excessive wear, scoring or
pitting, and renew if necessary.
Note
If it is necessary to renew any part of the
damper piston, parts may be obtained to
build either a piston half or a complete
piston.
Steering idlerldamper-To assemble
1. Thoroughly clean all parts to be assembled.
2. If it is necessary to renew the bearings, the bear-
ing outer tracks must be pressed from the housing and
the new ones pressed squarely into position up to
their abutment faces.
3. The interference between the housing and the
bearing outer tracks should be 0.002 in. (0,051 mm.)
and the diameter of
the
upper surface of
the
idler/
damper shaft should
be
0.500 in. (12,7
mm.)
minus
0.005 in. (0,13
mm.).
4. Fit the Woodruff key, the idler/damper lever,
lock washer and nut to the
idlerldamper shaft.
5. Torque tighten the nut to between 80 lb. ft. and
90
lb. ft. (1 1,06 kg.m. and 12,44 kg.m.) and bend over
the lock washer.
6.
Fit the two bearing outer races into the idler/
damper housing and lightly coat with steering box
fluid.
7.
Place the lower thrust bearing on to the idler/
damper shaft.
8.
Fit the shaft through the idlerldamper box.
9.
Fit the thrust washer with the chamfer facing
the lower thrust bearing,
10. Fit the upper bearing followed by the plain steel
washer and castellated nut.
11. The pre-load on the bearings is to be adjusted
by altering the thickness of the pre-load washer so
that
4
lb. to 1 lb. (0,227 kg. to 0,454 kg.) pull exerted
at right angles to the
idlerldamper lever is required to
rotate the shaft. Hold the assembly with the
idler/
damper shaft vertical while making this check.
12. If adjustment is required to alter the pre-load
then it will
be
necessary to grind the flat surface of the
pre-load washer.
13. Having found the adjustment, remove the
idler/
damper shaft and bearing cages and rollers, but do
not mislay the adjusting washer.
14. Fit the lower bearing cage and rollers into the
housing and then fit the shaft oil seal into the housing.
Piston-To assemble
1. Fit the ball followed by the spring on to its seat
in the piston head.
Note
The spring is fitted with the small coil
pressing on the ball.
2. Depress the coil spring and insert the taper pin
into the piston wall. The pin should be pressed in until
the pin head is below the piston wall surface.
3.
Carefully peen over the pin hole.
4. Repeat the above operation for the other piston
half.
5.
Fit the piston pads with their maximum width
between the piston skirt extensions.
6.
To assemble the two piston halves hold the
piston so that looking at the piston crown the valve
port is at the top.
7. Insert a bolt in the right-hand bore.
8. Repeat this operation for the other piston half.
9.
Insert the operating lever stop pin into the outer
hole of one of the piston halves.
10. Place a distance piece over each bolt and join
the piston halves together.
11.
Fit a spring and nut on each bolt.
12. Tighten the nut and fit
a
welch washer into the
bore groove.
13.
Punch the centre of the welch washer to flatten
it and locate it in its groove.
14. Polish the piston with fine emery strip to remove
any burrs.
15. Fit the piston with the actuator stop pin at the
back opposite the lever cover aperture.
16. Fit the air bleed screw and two blanking plugs
and aluminium washers.
17.
Smear the shaft oil seal with grease (Retinax
A).
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