Thread: Rear Main Seal
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  #23  
Old 06-22-2020, 10:32 AM
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Quote:
Originally Posted by HWYSTR455 View Post
This. It depends on the crank you are using. Some even polish the crank's serrations beforehand to avoid these issues.

I've used the rope seal that comes with the FelPro kits great results. It just takes time to do it 'right'.

Neoprene seals, polish the crank. Since it's not an issue with any clearance per-se, you can use a piece of strip sandpaper to work it.

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Quote:
Originally Posted by KEN CROCIE View Post
Best Gasket seals don't like aftermarket cranks with coarse serrations .They tend to melt and stop sealing.
Poly seals don't like coarse serrations either. You get poly-rubber dust as the serrations grind away the seal. You don't notice until the seal starts leaking and you pull the pan for repair.
Please check your aftermarket cranks to see if the serrations are as smooth as a stocker.
LOL I've mentioned this a couple times in the past when this subject comes up and get a bunch of people chime in that it doesn't matter

From what I've seen in my experience, the factory cranks are the ones with the serrations, and I've had to polish those down for the conventional seals. The aftermarket cranks, least the one dad is running, doesn't have any serrations in it and it's perfect for this type of thing.

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Last edited by Formulajones; 06-22-2020 at 11:28 AM.