Seadoo's 787 engine question?

[sselzer]

Do I have to put sealant on the exhaust manifold gasket, before bolting it on the engine?

If yes what type of sealant?

 

[CReynoldsMIZ]

I dont think you have to, but i think alot of people spray them with that copper gold spray in a can.

 

[motoXman]

If your using a new gasket and copper ring, clean the surfaces proper then no sealant

 

[Robj]

I did not use any sealants on gaskets when I installed my motor. Most important thing is torque to spec where you can, and make sure the gasket surfaces are clean.

 

[Robj]

Attually the manual does say to use some hi temp sealant on the copper ring.

 

[sselzer]

There's a copper ring in addition to the gasket?

 

[Matt Braley]

They are just talking about where the stock pipe separates. If you still are using that Coffman's then you have no copper ring.

 

[sselzer]

when I removed the exhaust manifold to change the engines base gasket, the shop that installed the engine used a black sealant on the exhaust manifold and I wanted to know if it's recommended that I do the same?

Yes I do have a Coffman pipe, put only unattached it at the manifold.

Thanks Matt and all others for your help...