Rolls-Royce Corniche - Lgnition Coil-To Fit; Lgnition Coil-To Remove; Sparking Plugs-To Clean and Check; Sparking Plugs-To Fit

Rolls-Royce Silver Shadow & Bentley T Series
Workshop Manual
Sparking plugs-To clean and check
1. Remove the sparking plugs.
2.
Thoroughly clean in a suitable sparking plug
cleaning machine.
. -
n
-
. -
3.
Clean off all surplus abrasive material from the
d
plug electrodes and threads with compressed air.
n
aJ 4. Inspect the electrodes for excessive wear.
3
c
.-
5.
Set the gap to the figures shown in Table 3.
B
.- Table 3
P
For cars fitted with Emission Control Systems, refer
to Chapter
U. All other cars are as follows:
Car Serial Number
Gap
Up to 22072
0,635 mm. (0.025 in.)
22073 onwards
0.76 mm. (0.030 in.)
0
Sparking plugs-To fit
Reverse the procedure given for removal, noting the
following points.
1.
Before fitting the sparking plugs, ensure that
the threads are perfectly clean then lubricate with a
e
small amount of ' Graphogen' grease.
l-
2
2.
Ensure that the steel washer is fitted to each
6 sparking plug.
a5 3. Fit and tighten the sparking plugs to between
b
z
1,79 kg.m. and 2,35 kg.m. (13lb.ft. and 17 1b.ft.L
lgnition coil-To remove
1.
The coil is situated on the left-hand side of the
distributor (when viewed from the driving seat).
2. Disconnect the battery.
3.
Disconnect the low tension leads and
suppressor.
0
4.
Remove the high tension lead.
5.
Remove the two setscrews and spacers
securing the
coll.
6.
Remove the suppressor and coil ballast control.
7. Remove the coil.
m
t.
P N
lgnition coil-To fit
Chapter M
4
Reverse the procedure given for removal, noting the
"?
+ following points.
1.
Ensure that the suppressor and low tension
leads are fitted
co~rectly. The coil is marked clearly
+ and - .
2.
The suppressor must be connected to the
positive coil terminal and the distributor cable to
the negative terminal.