> Obviously something in the combustion chamber is over heated causing it to
> diesel, but it's not the plugs, it's not carbon and I paid particular
> attention to eliminating sharp corners in there when I built it.
I'm not sure if these are the same heads but I had '67 Morris Oxford Station
Wagon (very briefly!) years ago that did the same thing - it was caused by
the casting between the valves getting hot at the narrow pointed bit...
(not very technical I know, but it's a bit had to explain, but if you have
the head off it should be obvious) - grinding each one back fixed the
problem.
Of course it didn't solve the problem that the car was grossly underpowered
and wouldn't pull the skin off a rice pudding - I solved that by buying a
MkIV Zephyr... :)
Mike
Mike Constantine
Webmaster
South Canterbury Zephyr & Zodiac Enthusiasts Club
http://www.geocities.com/motorcity/garage/7266
http://www.geocities.com/markfournz/
(Under construction)
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