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Old 08-05-2015, 11:52 PM   #14
swoopNZ
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Join Date: May 2010
Location: New Zealand
Posts: 1,380
Default Re: How to do an engine assessment on my wifes 81A?

See how far the front of the crankshaft extends out.
Only an inch or so means it's a '38 with the smaller diameter crankshaft.
Sticking out a couple of inches makes it a 39-41 .
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