Anyone measure P/V clearance change w Yella Terras
05-27-2003, 07:29 PM
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Anyone measure P/V clearance change w Yella Terras I'm trying to figure out if the Yella Terra are going to cause problems with my P/V clearance. I currently have .085 clearance and no one to my knowledge has posted how much less clearance they have since they added the Yella Terras.
Has anyone tested the P/V clearance changes between stock and YT rockers?
Has anyone tested the P/V clearance changes between stock and YT rockers?
05-27-2003, 09:53 PM
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Re: Anyone measure P/V clearance change w Yella Terras Good question, Im bolting back together my motor tomorrow with the YT rockers. My Piston-Head clearance is only .40, and my piston-valve clearance is about .90.
05-28-2003, 12:54 AM
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Re: Anyone measure P/V clearance change w Yella Terras I havent tested it, but you'll definitly have a bit less clearance according to yella terra. I beleive they measured the stock ratio to be somewhat like 1.68 and theirs was 1.70 or 1.71 ratio. That isnt even taking into account the less flex with a stiff spring, that's with no pressure on the rocker. I'd guess the clearance will be 20 thousanths less than you have now after its all said and done, but its just a guess. Lots of that difference isn't going to show up on a light clearance checking valve spring of course. Do a search for a post by "yella terra", its about 3 months old.