Quote:
Originally Posted by crystalworks
All BMW engines (that I have experience with) going back to the early 80's are interference engines. I'm not sure about stuff older than the m10 engines. You will bend valves if you spin the crank with the valve train out of time.
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Even the M30 in my '72 bavaria is an interference engine
I can not think of a single non-interference BMW engine, although I'm mostly familiar with their 6 cylinder offerings. Maybe some older 4 cyls were non-interference
M62 is definitely interference though
