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Old 11-14-2014, 02:56 PM   #3
bbrocksr
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Join Date: May 2010
Location: Yakima Washington
Posts: 913
Default Re: A question on Les Andrews's ring specs

Quote:
Originally Posted by 700rpm View Post
Les specifies ring gaps as .012-.015 for top; .010-.012 for middle. .008-.010 for bottom.
Tbirdtbird specifies .022 top; .-016-.018 for middle.

I used Les's when I put my engine together. I didn't have Tbird's specs at that time. The engine seems pretty tight when it's warmed up. Now I'm wondering if I should tear it down and reset the gap.

These are significantly different. Can anyone explain that?
I would go with Les's specs , General rule is .004 per inch of bore for top ring and less for the others.
4 in. bore =.016, model a is 3 7/8.
.022 is kind of excessive.
Bill
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