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Old 11-06-2022, 08:54 PM
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Verdoro 68 Verdoro 68 is offline
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Join Date: Jun 2003
Location: Clayton, CA
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Quote:
Originally Posted by HWYSTR455 View Post
It's true, have seen it before as well, tip or other tests it may leak slightly, and once heat cycling a few times from running it doesn't leak in use.

I don't offset the parting lines of seal either, have never used the 1 piece.
It's definitely the seal. I folded a blue shop towel and wedged it between the crank flange and the rear main. Came back in about an hour and it had wicked some oil.

I checked the journal again with my dial bore and didn't pick up on it being out of round. My guess is this leak has to do with the crank diameter being at the bottom of the specs for the seal, or maybe it's just oil seeping past the serrations like Wade said. The only other thing I can think of is maybe it's getting past the anti-rotation holes? I filled them level to the cap as best I could.

Quote:
Originally Posted by HWYSTR455 View Post
I like the rope-type seals and have install of those down to an art. But those are not recommended with a crank that has no serrations.
Not sure what to do here. Now is the time to make this as right as it's going to be. I have a graphite seal on hand but to confirm, those ARE NOT recommended for cranks with serrations, correct?

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'68 GTO - 464 - Ram Air II heads - 236/242 roller - 9.5” TSP converter - Moser 3.55 Truetrac (build thread | walk around)
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Last edited by Verdoro 68; 11-06-2022 at 09:07 PM.