Silicone on Intake/Exhaust manifold gasket?

[big66440]

I apologize  for the stupid question but  does the intake/exhaust manifold gasket require any type of sealant when it's replaced? I will be using Fel Pro part number MS93680, thank you.

[ComancheKid45]

Nope, just make sure both the head and the manifold surfaces are clean and smooth.

[big66440]

Thank you :thumbsup:

[schardein]

Yep, I've done 4 and just used the gasket each time.  I use a gasket scraper, followed by a green scotchbrite pad, followed by a shop towel w/ brake cleaner to get mating surfaces perfectly clean.

[ScottJeep]

Just old school I guess but I've always sprayed them down with copper spray-a-gasket. Then while still just a bit tacky torque everything down. It's just the way I was taught and it has never failed/cause me any issues. 

[FrankTheDog]

X2 on the spray a gasket.

[big66440]

I've done it once using Permatex " right stuff " around the intake ports only, I'll be replacing another gasket ( not the same one ) and my shop manual doesn't mention using sealant. I started thinking and got a little paranoid that maybe the use of silicone would give room for failure in the future :hmm: . Although that " Right  Stuff"  along with "Gasgacinch" are true  blessings from the car gods  :thumbsup: .

[ParadiseMJ]

I've always used the copper spray.  Both sides. The gasket itself and the clean mating surface is probably more important, and sufficient, but that's the way I learned how.

[Megadan]

clean mating surfaces and no sealer + proper torque figures/sequences has always been the way I go unless the gasket I am installing has instructions otherwise.  I have never had a sealing problem.  The other end of the spectrum is servicing the next time around.  The gasket is usually much easier to remove the next time around when it's not cooked on with some sort of sealant.  Just my 2 cents.  everybody does it their way.