sam dupont
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Embossed metal gasket. I know sealant might interfere with sealing if too thick. Google search results are less than informative whence gets equal answers of yes and no. I'm working on a Toyota 3.5 Sienna
sealant on metal water pump gasket. copper coat spray?
- Thread starter sam dupont
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I used this last time and so far so good. Follow the instructions.
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Permatex Ultra Black RTV works well also.....
BOB RENTON
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I love that copper spray on cork/paper gaskets
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That's what I had a problem with on a t-stat housing. Kind of squeezed out. What I posted hardens a little better and is staying put. I like Ultra Black for other gaskets and if you're in a hurry Right Stuff is very good. No curing time before final torque like Ultra Black.
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Ok.....i've used Permatex High Tac brush on sealant.....works well.....just something to consider.....
BOB RENTON
If the surface is rough, I'll give it a light smear of ultra black. But it should have the gasket with the black viton coating similar to cometic MLS headgaskets. Which is designed to seal by itself
sam dupont
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You used that in place of gaskets?
Toyota calls it "rubber" coating. I will go with it as I have gotten into binds by trying to out engineer the factory practices. *Depending on the engine surfaceIf the surface is rough, I'll give it a light smear of ultra black. But it should have the gasket with the black viton coating similar to cometic MLS headgaskets. Which is designed to seal by itself
sam dupont
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BTW... The Toyota dealership has a 392 SuperBee setting on the lot. Somebody scared themselves and bought a Toyota to deal with the trauma.
gtx6970
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I've alwasy used the spray copper coat on the thin single layer metal gaskets. Never been a problem
sam dupont
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I like CC. In a seal like this, it is a good and uniform coating in a spot where extra sealant in the cooling system is not preferred.
The pump showed with a double layer tin gasket with what they called a rubberized finish. It looked more like paint. The block cleaned up with no pitting, so I went with nothing. So far so good.
