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Re:difference between compression stroke TDC and expansion stroke TDC



>What is the easiest method to tell the difference between TDC
compression
>and expansion on a 84 Spider 

Well in the strictest since they are the same, but I am going to assume
you mean overlap and not expansion.  So, on overlap you can remove the
spark plug and see the open valves, on compression the valves are closed
so you can't see them.

Chris Hall

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