Workshop
Manual
Rolls- Royce Silver Shadow
8
Bentley
T
Series
Chapter
M
2.
Renew the neoprene seal located below the
bearing.
3.
To facilitate removal and fitting of the bearing,
heat the distributor body to a temperature of
110
OC.
(230'
F.)
to 120'~.
(248'
F.).
4.
Check the shaft for wear and parallelism.
5.
If the shaft is excessively worn, renew the
shaft.
6.
If a new shaft is fitted, or if the original shaft
is to be fitted, renew the bush at the base of the
distributor body and ream to size.
7.
Check the condition of the centrifugal advance
springs; renew if necessary.
8.
Check the condition of the contact breaker
points; renew if necessary.
Distri butor-To assemble
Cars from Car Serial Number 8742
(not Opus)
Reverse the procedure given for dismantling, noting
the following points.
1.
Fit the distance collar to the shaft before
fitting the shaft to the distributor body.
2.
Ensure that the vacuum advance peg engages
correctly with the vacuum unit spring link.
3.
Renew the externally fitted
'0'
ring oil seal,
situated below the body casting.
Distributor-To dismantle
Cars from Car Serial Number 8742
(not Opus)
An exploded view of the distributor is shown in
Figure
M9.
Before dismantling take care to note the
position of the parts in relation to each other to
ensure correct assembly.
1. Remove the distributor from the crankcase as
described in Distributor
-
To remove.
2.
Remove the distributor cap, rotor arm and
contact breaker.
3.
Unscrew the contact breaker gap adjuster;
remove the adjuster, spring and plastic friction
plate.
4.
Unscrew and remove the nut, washer and spring
that secures the contact
breaker base plate.
5.
Remove the scre,v ><curing the contact breaker
base plate earth lead
to
the contact breaker bearing
plate.
6.
Lift off the base plate.
Cars fitted with vacuum retard unit
7.
Remove the two screws securing the vacuum
unit bracket to the distributor: remove the unit and
rub ber
gromme t.
8.
Remove the two screws from the contact
breaker bearing plate; lift out the plate.
9.
Remove the centrifugal advance springs from
their anchor points on the cam foot.
10.
Unscrew and remove the screw and felt from
the top of the cam; remove the cam.
11. Remove the driving gear and withdraw the
shaft and plate assembly from the distributor body.
Note
Retain the distance collar located on
the shaft below this plate.
Distributor-To inspect
Cars from Car Serial Number 8742
(not Opus)
1.
Check the bearings at the top and bottom of
the
distributor body shaft housing.
If
excessive
wear or roughness is detected the distributor body
must be renewed.
2.
Check the shaft for wear and parallelism.
3.
If the shaft is excessively worn, renew the
shaft.
Distributor-To assemble
Cars from Car Serial Number 8742
(not Opus)
Reverse the procedure given for removal, noting the
following points.
1. Lightly smear the cam spindle, weight pivots
and working surfaces of the weights with Rocol
'Moly Pad'.
2.
Lubricate the shaft with Retinax
'A'
or
equivalent grease.
3.
Ensure that the distance collar is on the shaft
just below the action plate.
4.
Ensure that the cam foot pivots are correctly
located in the weights before tightening the cam
screw.
5.
Lubricate the felt pad with engine oil.
6.
Smear the contact breaker base plate pivot
point (located on the contact breaker bearing plate),
the exposed surface of the adjustment plate, the
nylon 'pips' on the underside of the base plate, and
the vacuum unit linkage (if fitted) with
Retinax
'A'
or equivalent grease.
7.
Smear the contact breaker heel pivot post with
Retinax 'A' or equivalent grease.
8.
Set the dwell angle as described in Dwell
angle
-
To set.
Distributor-Opus ignition
Important On no account must the Opus
ignition distributor be dis-
mantled. If a distributor is
faulty it must be removed and
a new distributor fitted.
Sparking plugs-To remove
1.
Remove the high tension plug cables.
2.
Unscrew and remove the sparking plugs.
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