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Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: Correct rod and main bearing clearances?
Thanks guys. I will run them as they are.
I checked the main bearing clearance and have .0021-.0024 on the first 4 and .0036 on the rear. I think the .0021-.0024 are a little tight and the .0036 is a little loose. Is that correct? Should I get different bearings or run it like it is? I heard somewhere that you can scotch brite the back side of the bearings to make them a little thinner and then install them to get more clearance. Has anyone done that? Will that reduce the bearing crush and cause a problem?
Thanks again for all the help,
Your clearances are good for start up. Use good oil and break it in slowly. Leave the scotchbrite trick for the pro racers. I usually call .001-.0036 good. I would check the rear crank flange thrust clearances. Thats between the crank flange and main bearing thrust surface. .005-.007 is my number. This is especially important on a manual trans car.
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
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