Fitting. Before fitting a new contact set, wipe the points clean with fuel or spirit.
Lubricate the pivot post
(2)
and check that the insulating bush
(9)
is correctly
positioned below the spring loop. Position the contact set on the distributor
plate and lightly tighten the securing screw
(6).
Locate the lead terminals around
the insulating bush so that they make contact with the spring and tighten the
nut
(8).
Set the contact gap.
Whenever a new contact set has been fitted, recheck the gap after the first
500
miles. During this period, the heel of the contact will have bedded in and reduced
the gap.
Ignition
cables
The high-tension cables connecting the distributor to the sparking plugs may,
after long use, show signs of perishing. They must then be replaced by the
correct type of ignition cable.
Sparking plugs
The sparking plugs should be cleaned, preferably with an air-blast service unit.
Fig.
2
Check the plug gaps, and reset if necessary to the recommended gap (see
'GENERAL DATA'). To reset, use a special Champion sparking plug gauge and
setting tool; move the side electrode, never the centre one.
When refitting the plugs make sure that the washers are not defective in any
way. Screw the plug down by hand as far as possible, then use a spanner for
tightening only. Always use a tubular box spanner to avoid possible damage
to the insulator:and do not under any circumstances use a movable wrench.
Never overtighten a plug, but ensure that a good joint is made between the plug
body, washer, and cylinder head. Wipe clean the outside of the plugs before
reconnecting the
H.T.
leads.
When fitting new sparking plugs ensure that only the recommended type and
grade are used (see 'GENERAL DATA').
-
Fig.
2
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