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Old 30-06-2009, 07:52   #1
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Re-attaching Exhaust Manifold

I removed my exhaust manifold (55hp diesel) the other day to track down a problem and now will replace it. Is there any goop, grease or other lubricant that I should put on the gasket before putting back on?
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Old 30-06-2009, 08:15   #2
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No, just a new gasket if the old one is totally compressed, might still seal well but new ones aren't that expensive. Your EGTs will burn off anything you put on there.
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Old 30-06-2009, 08:27   #3
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parts are really hard to come by and the gasket seems in good shape, so I hope I can reuse it.
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Old 30-06-2009, 08:30   #4
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You'll probably be ok with it, I have reused many and only occasionally have a minor leak.
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Old 30-06-2009, 21:03   #5
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I used CRC Maniseal Exhaust Cement to enhance the gasket. I bought it in Australia but believe a similar product will be available globally. It is commonly used in car engines, and is designed to take exhaust temperatures.

Martin
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Old 01-07-2009, 06:11   #6
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Thanks all. Any tips on whether/how I should try to clean the carbon deposits?
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Old 01-07-2009, 07:39   #7
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If it is thick caked on stuff use a screwdriver to scrape it off, lighter deposits can be removed with any number of solvents, lacquer thinner, brake cleaner etc. Use the solvent for the mating surfaces.

Just yesterday I ordered this material to make a custom gasket for a new turbo setup that I couldn't find the proper gaskets for. Don't know how it will work yet but it is cheap and has good reviews.

Amazon.com: Mr. Gasket 5961 Ultra Seal Exhaust Gasket Material: Automotive
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