What to use to seal water pump????

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Dustedu2

Dustedu2

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I see some use RTV. Is this on the gasket, or in place of gasket? Install right away? Let it sit for 10 min??? What do you do? :book:
 
I just use the gasket, no sealer just feed a couple of bolts through the pump to hold the gasket on the pump and put it on tighten down and ready to go.never had a leak,maybe just lucky??
 
Fel-pro thick blue gasket I don't put anything on it. But if its the thinner black gasket material I put a small thin bead of ultra black or gray. Either way make sure you put sealer on the threads of the 4 long bolts if its a small block.
 
I'be bought reman'd water pumps that still had a small piece of the previous gasket on it. Painted over also so look close. Clean dry mating surfaces are more critical than sealant. I drag the gasket between 2 fingers applying a light coating of rtv on both sides. Makes it just tacky enough to stay in place. Cleans off easier next time too.
 
redfish said:
i'be bought reman'd water pumps that still had a small piece of the previous gasket on it. Painted over also so look close. Clean dry mating surfaces are more critical that sealant. I drag the gasket between 2 fingers applying a light coating of rtv on both sides. Makes it just tacky enough to stay in place. Cleans off easier next time too.
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camd64 said:
Fel-pro thick blue gasket I don't put anything on it. But if its the thinner black gasket maokterial I put a small thin bead of ultra black or gray. Either way make sure you put sealer on the threads of the 4 long bolts if its a small block.
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Will teflon tape work ok on the bolts?
 
For years, I've been coating gaskets with white grease. They seal better, and they come right off.
 
Copper coat in a spay can, I bet I have two cans of it from my past builds, I spay the gasket and let it get tacky and go, and on some water pumps I have just used the gasket.

I would be concerned of Teflon tape , it could wash off the bolts and plug a passage in your radiator if it is in a water jacket.
 
Also, You should not use teflon tape on any fittings on the transmission, for the same reasons memike stated. Come off and plug a passage.
 
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