Permatex #2 sealant

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pons0030
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Permatex #2 sealant

Post by pons0030 » Fri Mar 20, 2020 7:41 am

I was reading an old post from 2016 about using Permatex - but I could not find the answer. Gasket sealant was used on my engine (oil pan, transmission housing), but I cannot recall on which side of the gaskets it was applied? Do you apply it on both sides of the gasket? IMHO it would make sense to have a leakfree engine.

Any ideas?

thanks!

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Henry K. Lee
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Re: Permatex #2 sealant

Post by Henry K. Lee » Fri Mar 20, 2020 8:47 am

I normally use a contact cement on one side and the Permatex on the other side. In some situations like the felt on the hogs head attachment area, I use contact cement (weather stripping adhesive) and ultra gray or black on the hogs head side. No leaks. Using that soft set Permatex on threads works well too but don’t over do it.

Hope this Helps,

Hank

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Re: Permatex #2 sealant

Post by Kaiser » Fri Mar 20, 2020 9:23 am

What Hank said, Permatex is great stuff but should be used sparingly, if it squeezes out in blobs it is also squeezing out inside in big blobs, as Permatex does not fully harden but keeps a 'rubbery' consistency it is very possible that the 'blobs' come loose and block oil passages.
Best way is to put a light coat of it on both sides of the gasket, just thick enough so the gasket material does not shine through, leave to dry for a couple of minutes before mounting.
If you want to remove the sealed cover (say your pancover) occasionally for inspection, degrease one surface (the cover side) thoroughly and smear the other ( pan side) lightly with oil, then stick the on both sides permatexed gasket to the cover and then mount the cover to the pan, that way it will seal good and sticks to the cover when you open it, and comes off without ruining the gasket so it can be used again.
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Re: Permatex #2 sealant

Post by DanTreace » Fri Mar 20, 2020 9:53 am

Have always used Permatex 2 on T engine gaskets for over 50 years, nothing better IMO. And coating both sides of the gasket too. If un-even metal surfaces a dab more in the obvious depressions before aligning the gasket.

Been in use since 1918 and lots of T motors got leaks fixed that way from just cup grease on cork or felt :)
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Re: Permatex #2 sealant

Post by pons0030 » Fri Mar 20, 2020 10:10 am

Thanks guys!

This really helps.

Have a save and healthy weekend.


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Re: Permatex #2 sealant

Post by SurfCityGene » Fri Mar 20, 2020 2:30 pm

Hate to say it Dan but I disagree with your comment about the permatex. In my opinion after 50 years they have made some real improvements and the Ultra Black is one of them. The #1 and #2 were great products but most find many advantages to either the Right Stuff or my preference the Ultra Black for sealing oil leaks and also a hundred other uses where a flexible strong adhesive is needed.

YMMV IMHO
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Re: Permatex #2 sealant

Post by Kaiser » Fri Mar 20, 2020 4:56 pm

Gene, you are right in a way, the two you mention are stronger adhesives, and are a great fix if you have problems with pitting or alignment of surfaces, and in some spots like the corner where hogshead and pan and block meet you often have a spot where the stronger stuff is a good fix, but if everything has a reasonably good fit all you need is a light coating of any of the above products to give a good and oiltight seal.
For my taste i like to use the not so heavy duty stuff if i can get away with it, as it makes for easier dismantling, for inevetably once comes the day that you have to take your beloved T apart again to fix a problem :D
Last edited by Kaiser on Fri Mar 20, 2020 5:00 pm, edited 1 time in total.
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Re: Permatex #2 sealant

Post by Kaiser » Fri Mar 20, 2020 4:58 pm

This is not turning in one of those MMO or waterpump threads or is it :lol:
Have a good weekend all !
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Re: Permatex #2 sealant

Post by Scott_Conger » Fri Mar 20, 2020 6:22 pm

Leo

it won't, because everyone knows MMO works for what you use it on, and gasket goop is just a preference

:lol:
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Re: Permatex #2 sealant

Post by A Whiteman » Fri Mar 20, 2020 11:41 pm

Remember not to tighten things up right away. Let the goop 'sit and set' a bit before final tightening.

Why? because you will squeeze it out if you go to full tightening right away and then have no benefit. But don't forget to go back and tighten properly before final assembly!

Remember not to put it on too thick, that just leaves a lot of lumps that can fall off and block things internally.

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