Workshop
Manual
Rolls Royce Silver Shadow
b
Bentley
T
Series
Chapter
N
for signs of wear, pitting or damage. The diameter of
the two outer button location bores should be 1.000 in.
to 1.001 in.
(2,54 cm. to 2,542 cm.).
2;
The trunnion button and bearing retainers should
be smooth and free from surface defects. The inside
and outside diameters of the retainers should be
0.3937
in.
and 0.5512 in. (0,998 cm. and 1.40 cm.)
respectively.
3. The roller bearing and the trunnion pin surface
should
be
smooth and free from defects. The diameter
of the rollers is
0.999 in. to 0.9995 in. (2,5374 cm. to
2,5375
cm.)
and the trunnion pin diameter at the
bearing areas is 0.39345 in. to 0.3937 in. (0,9983
cm.
to
0,9984
cm.).
4. The belleville washer should be free from cracks
or distortions. It should have a minimum free height
of 0.016 in. (0,041 cm.).
5. The trunnion pin should be inspected for position
with a depth micrometer or by placing the knuckle
end between centres and checking the pin ends with a
dial test indicator. The pin should be within
0.006 in.
(0,0152 cm.) of the centre line of the knuckle end
piece.
6. If the trunnion pin position is inspected by using
a dial test indicator with the knuckle piece between
centres, it will
be
necessary to remove the splined
clamp from the end of the knuckle. The two set-
screws which secure the clamp lie in slotted holes in
the splined coupling flange which provides a small
degree of fine adjustment when steering wheel
cen-
tralisation is being carried out. It is therefore advisable
to mark the coupling with correlation marks before
disconnecting it to facilitate fitting it in the same
relative position on assembly.
7.
In the unlikely event of the trunnion pin requiring
replacement, it must be pressed out and a new one
pressed in squarely to conform with the above infor-
mation, on central position.
Note
Heat should not be applied to remove or
fit a trunnion pin.
The interference between the trunnion pin and
knuckle is
0.003 in. (0,076 mm.).
Steering column universal joint-
To assemble
2.
On assembly, the trunnion bearings, housing
bores and buttons should be lubricated with a liberal
application of
Retinax
'A'
grease, and care should be
taken to ensure that the circlip and sealing boot are
fitted and located correctly. New clips must be used
to attach the boot and must hold it tightly.
3.
If the splined coupling has been disconnected
from the knuckle piece it must be replaced in its
correct position according to the correlation marks
made before dismantling.
Lower steering column bonded coupling-
To renew
Remove the lower steering column from the car as
previously described under 'Lower steering
column-
To remove'.
1. Mark the steering column on both sides of the
bonded coupling to ensure that the wheel position
remains unchanged on assembly.
2.
Remove the four socket-headed setscrews and
nuts from the bonded coupling, withdraw the safety
stalk and remove the coupling.
3. Fit a new bonded coupling reversing the pro-
cedure given for its removal, noting that the marks
made on each half of the column should be lined up
and the nuts on the socket-headed screws should be
torque tightened to between 16 lb. ft. and
18
Ib. ft.
(2,21 kg.m. to 2,48 kg.m.).
Lower steering column-To fit
To fit the lower steering column reverse the procedure
given for its removal, noting the following points.
1.
It will be noted that the splined clamp has a
fiai
machined in the splined bore which corresponds with
a flat machined on the steering box input shaft. This
ensures that the steering wheel position remains un-
changed, provided that the clamp has not been dis-
connected from the universal joint. If the clamp has
been disconnected from the universal joint, the wheel
must be set relative to the steering box (see Steering
wheel-To set).
To assemble the steering column universal joint
2.
The
two
bolts
and
nuts
securing
the
joint
the
reverse the procedure given for its dismantling, noting
toe-board should be torque tightened to between
the following points.
16 Ib. ft. and 18 lb. ft.
(2,21 kg.m. and 2,48 kg.m.) and
1. The alignment marks previously made on the
the splined
claq pinch bolt torque tightened to
body and joint housing should be lined up before
between 16 lb. ft. and 18 lb. ft.
(2,21 kg.m. and 2.48
entering the pin and bearing assembly.
kg.m.).
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