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Old 02-06-2014, 04:43 PM   #15
Bruce Lancaster
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Join Date: May 2010
Location: Madison, NJ
Posts: 5,230
Default Re: Model B engine advantages?

I think the B crank is an advantage...not because of the available counterweighted version but simply because of larger diameter, which surely makes it a bit stiffer.
Small diameter cranks, especially forged ones, are apparently quite elastic and suffer from erratic (changes with speed and various internal dynamics) problems in timing because crank position varies in relation to cam functions.
Cracks?? There do seem to be a lot of running B engines around, especially when you note that B production was a tiny fraction of Model A production.
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