This morning on the drive work, the 6 cylinder Daimler was running
rough. Not all the time, but enough to cause concern.
So at coffee break I pulled the spark plugs one at a time. The 4th
one to come out, instead of being clean, looked like this:
approx 1 cm of the insulator has broken off.
I’ve got to drive it home this evening (9 miles) and can then have
a go at seeing if the the ceramic shards are still in the
combustion space, if there’s any compression left, and possibly at
fitting a replacement plug.
Has anyone else experienced this sort of failure of a plug
electrode insulator? Anyone care to speculate on the likely
collateral damage or the cause?–
al mclean '93 XJS 4.0 - '84 4.2 Daimler - '84 DD6
Telford, United Kingdom
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