Engine Differences??

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Dunx
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Post Sat May 20, 2006 10:30 pm

Its my understanding that early 325 sports had a higher compression engine than later models. What was actually changed when they did this? and does anyone know what the valve clearances are on the later spec engine?
Templ8e30
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Post Sat May 20, 2006 11:13 pm

From what I've read over the years the early high compression engines use different pistons to give the higher compression.

All the M20 6 cylinder engines have valve clearances of 0.25mm cold and 0.3mm hot.

Cheers,

Iain T
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