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Author Topic:   Best gasket sealant?

Posts: 322
From: Oklahoma City, Oklahoma
Registered: Nov 2000

posted 06-11-2001 08:12 AM     Click Here to See the Profile for MrXerox   Click Here to Email MrXerox     Edit/Delete Message   Reply w/Quote
What is the best type to use for an oil pan? I only want to have to do this once

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Posts: 150
From: Indianapolis, IN 46237
Registered: Feb 2001

posted 06-11-2001 12:21 PM     Click Here to See the Profile for Mike_R   Click Here to Email Mike_R     Edit/Delete Message   Reply w/Quote
One thing I can tell you for sure is I will never use the standard permatex "Blue RTV" again. I have good luck with the "Ultra Blue" but the Blue RTV is risky. I installed an intake manifold recently and used the Blue RTV and I put a thick bead at the front and back and it never set-up. Even after days is was still stickey and if you touched it it would fall apart. I mentioned this to my brother and coincidently he had the exact same problem with the Blue RTV a while back. I then used the Ultra Blue and it did great. It's a little more expensive, but it is worth it.

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Robert K

Posts: 503
From: Nashville, TN
Registered: Apr 2000

posted 06-11-2001 12:29 PM     Click Here to See the Profile for Robert K   Click Here to Email Robert K     Edit/Delete Message   Reply w/Quote
I have also had the same results with the permatex blue and ultra blue. I like the ultra blue and also the permatex black.

I'd go with the ultra blue on the oil pan.

67convertible 289/auto
65fastback 302/4sp

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Posts: 4780
From: Delta BC Canada
Registered: Dec 99

posted 06-11-2001 08:08 PM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
i had that blue sh$t not set up for me once too many times... use the black stuff!


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Posts: 452
From: Clarion PA
Registered: Nov 2000

posted 06-11-2001 10:30 PM     Click Here to See the Profile for Rustang   Click Here to Email Rustang     Edit/Delete Message   Reply w/Quote
I've always used the old brown colored shelac along with the standard cork gaskets. Only use a dab of black RTV on the pan corners where the rubber end seals meet the cork gaskets. Then coat the rubber end seals with white lithium grease. I make sure the pan rail is fairly straight, not bent up from over torqued bolts, Then I torque the bolts to the proper torque(don't recall exactly what they were for small blocks). On my race motors, I only coat one side of the cork gasket with shelac, then use lith grease on the other side. That way the pan has a chance of popping off without destroying the gasket. I've never had an oil leak yet, and I don't get a ton of RTV plugging up my oil sump.


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Posts: 19686
From: Lyons, IL, USA
Registered: May 99

posted 06-12-2001 10:00 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Permatex black, gray or clear silcone is what we always use.

Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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