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Old 06-17-2017, 02:47 AM   #1
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Gasket replacement Caterpillar engines raw water

Can anybody tell me if they use a gasket sealant when replacing gaskets on the raw water system on a Caterpillar engine. 375 hp.

I'm talking heat exchanger end plates, transmission cooler etc.
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Old 06-17-2017, 11:55 AM   #2
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They most likely need no sealant.

But for gaskets that I know I might need to reuse, say like on a raw water impeller cover, I seal one side of the gasket with Permatex #2 and lube the other side of the gasket with Super Lube.

That way the Permatex side stays stuck to the impeller cover while the Super Lube side comes free without tearing the gasket.
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Old 06-17-2017, 12:07 PM   #3
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you should not have any issues using an automotive sealant.
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Old 06-17-2017, 02:50 PM   #4
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Quote:
Originally Posted by Alaskan Sea-Duction View Post
you should not have any issues using an automotive sealant.
You mean other than the fact that most people use to much and the sealant ends up squeezed out the seams and into places it shouldn't go?
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Old 06-17-2017, 03:25 PM   #5
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Just my penny's worth.
I use Hylomar, it was specifically developed by Rolls Royce for surface mating gaskets.
Use evenly & lightly on clean dry gasket surfaces, pay particular attention to torque settings and order of tightening.
I've never had a failure yet.
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Old 06-17-2017, 03:58 PM   #6
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Quote:
Originally Posted by Capt.Bill11 View Post
You mean other than the fact that most people use to much and the sealant ends up squeezed out the seams and into places it shouldn't go?
Well true, but you must be trained in the art of sealant.....(5200 is a totally differ subject for me!!)
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