Permatex 'Right Stuff ' Gasket Maker - Any Opinions?

[neelie]

Just dismantled my aircon water pump">raw water pump because it was dripping when not running.

It has a paper gasket which appears to be the cause of the leak.

I'm thinking of cleaning both faces and applying this stuff instead of making another paper gasket.

http://www.permatex.com/products/Aut...sket_Maker.htm

Is this a dumb idea?

[um saudade]

Yes, it’s a dumb idea for several reasons:
The gasket is a specific thickness to give the impeller the correct endplay. You can easily duplicate this with a similar gasket material or paper but you can’t do it with stuff that has no crush.
Also, when you use a gasket, you don’t get sticky gunk all over everything, including the impeller. Make a couple of gaskets and keep a spare handy, it’s a lot easier than scraping old sealer off the machined surfaces.
If the mating surfaces are pitted beyond hope, then disregard the above. In that case you may get a little more service out of the pump if you use silicone. (Sparingly)

Um_Saudade

[delmarrey]

Originally Posted by neelie

Just dismantled my aircon raw water pump because it was dripping when not running.

It has a paper gasket which appears to be the cause of the leak.

I'm thinking of cleaning both faces and applying this stuff instead of making another paper gasket.

http://www.permatex.com/products/Aut...sket_Maker.htm

Is this a dumb idea?

Depends on the type of pump. If it's low pressure like a car, and the gasket is paper thin, then I'd go with http://www.permatex.com/products/Aut..._2_Sealant.htm

But if it's a positive displacement pump, you'll need a good strong surface with the proper gasket.

[s/v Jedi]

If the surfaces are damaged, use a new paper gasket PLUS Permatex gasket dressing. This dressing helps the gasket, doesn't replace it. It costs surprisingly much but works very well.

cheers,
Nick.