Manifold gasket replacement

[Briank117]

Hey gang,

Out of an abundance of caution, I pulled both sets of manifolds/risers off to inspect. 318’s. Checked out OK. I received replacement gaskets from Barr, and am curious if you guys install them dry, or use a small amount of Permatex (or equivalent).

Also, both of my blocks have the last manifold bolt hole bored into the water jacket. Any idea which product I should use to seal it when I reinstall manifold bolts?

Thanks,

B

[prowlersfish]

Normally I put gaskets on dry. But if the surface is pitted or in bad shape I may use a high temp sealant(RTV). Never ever use Blue ( I prefer red high temp')

Pipe sealant on the threads.

[Briank117]

As always, thanks for your response prowlersfish.

What type of sealant would you suggest for the threads? It looked like clear silicone was used when I pulled them off. Just no telling what type, and obviously I want to do it right the first time.

Thanks

[prowlersfish]

You can use pipe sealant, (the white stuff ) or Red RTV. If you wonder Why I keep saying Red . Different color RTVs is they have different qualities. To me, red works well in many cases and is high temp. Gray is ok too ( at least the brands I use). Blue seals nothing well, and every time I see it I seem to be fixing leaks or poor workmen ship.


Red has 1 big fault. it seems to get everywhere. Just like 5200