Rolls-Royce Silver Shadow
&
Bentley
T
Series
workshop
Mimud
F"h4
tw
Chapter
N
3. Lubricate the rocking shaft bore and single lip
rocking shaft seal with the approved power steering
fluid and insert the seal into the bore using the rocking
shaft seal insertion tool (RH 7779) (see
Fig.
N29).
Do not drive the seal more than
4
in. (3,18 mm.) below
the face of the housing.
4.
Remove the insertion tool and place a steel
washer on top of the seal.
Using insertion tool
(RH 7779) drive the seal approximately
f
in. (12,7 mm.)
further into the bore.
5.
Lubricate the double lip seal with the approved
power steering fluid and insert it into the bore (see
Fig.
N29). Using rocking shaft seal insertion tool
(RH 7779) drive the seal into the bore until the top
edge of the seal is flush with the bottom edge of the
circlip groove.
6.
Remove the seal insertion tool and place a steel
washer and circlip over the seal. Using the seal in-
sertion tool drive both seals down into the bore until
the circlip seats into the circlip groove.
Note In order to avoid possible damage to the
sealing surface of the lower seal, it is
important that the seals and washers are
driven down only far enough to allow the
circlip to seat into the ring groove.
Adjuster plug assembly-To dismantle
I.
Remove the thrust bearing retainer with a screw-
driver (see
Fig.
N30), taking care not to score the
needle bearing bore, discard the thrust bearing
retainer.
2.
Remove the thrust bearing spacer, thrust bearing
and bearing races.
3.
Remove and discard the adjuster plug
'0'
ring
seal.
4.
Remove the stub shaft seal retaining circlip.
5.
Remove and discard the combination washer,
dust seal and stub shaft fluid seal.
Adjuster plug assembly-To inspect
1.
Inspect the needle bearing in the adjuster plug.
If the rollers are broken or pitted, remove the needle
bearing by pressing out from the thrust bearing end,
using the adjuster plug bearing extraction and inser-
tion tool (RH 7783) (see
Fig.
N31).
2.
Inspect the thrust bearing spacer for cracks.
3.
Inspect the thrust bearing rollers for signs of
wear, pitting, scoring or cracking. If any of these
conditions are found, renew the thrust bearing,
bearing races and check the condition of the thrust
bearing spacer.
FIG. N29 INSTALLING ROCKER SHAFT SEAL
Adjuster plug assembly-To assemble
1.
If the adjuster plug needle bearing was previously
removed, fit a new needle bearing on to the adjuster
plug bearing extraction and insertion tool (RH 7783)
with the letters on the bearing against the tool.
2.
Position the bearing and tool over the thrust
bearing end of the plug and drive the bearing into the
plug (see
Fig.
N31). The end of the bearing must be
flush with the bottom surface of the stub shaft seal
bore.
3.
Lubricate the new stub shaft fluid seal with the
approved power steering fluid and, using adjuster
plug seal insertion tool (RH 7780) (see
Fig.
N32)
install the seal far enough to provide clearance for the
dust seal and retaining ring.
FIG. N30 REMOVING THRUST BEARING RETAINER
N35