LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Timing cover gasket.... dry or rtv??

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Old Nov 8, 2003 | 10:33 AM
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96 WS6's Avatar
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Timing cover gasket.... dry or rtv??

Should I put a thin layer of ultra copper or will it be fine. It was VERY hard to scrape the old gasket material off so I just want to make sure it seals right.
Old Nov 8, 2003 | 12:24 PM
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OBE1 95Z28's Avatar
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I just helped my friend replace his, the Helms manual says to put it on dry so that's what we did. But next time I'm going to put a thin layer of Black RTV on it as it's a bitch to fix if it does leak. Our gasket was also a bitch to clean off and I know it went on dry 10K miles ago.
Old Nov 8, 2003 | 12:32 PM
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Mine had rtv on it when I took it off so I reapplied rtv when I put it back on.
Old Nov 8, 2003 | 12:39 PM
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If you don't want it dry or with cured RTV to clean up, Hyplomar is very good to work with. It seals, but doesn't cure, so cleanup is pretty easy. I use it for timing covers and water pumps.
Old Nov 12, 2003 | 11:23 PM
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TTT, I put a layer of RTV between the oil pan U and the timing cover and around those edges so that wont leak and I put some between the cover and the gasket (not the block and gasket). I spent multiple hours cleaning the old gasket material off so the surfaces are pretty clean. I just want to know if people have trouble making the thing seal dry???
Old Nov 12, 2003 | 11:26 PM
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Don't put it on dry. Just put my motor together and was told to use Permatex (thinking gasket sealer) comes in a can like gaskasinch. You brush it on both sides. worked like a champ.
Old Nov 12, 2003 | 11:31 PM
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Man, I'm doing the same thing right now. Those things are a real pain to remove/clean, aren't they?

I've done a few timing cover gaskets before and I've always used Copper RTV on it. No problems.

Also just replaced the oil pan gasket and I'll use some RTV on the front side where it meets the timing cover as well.
Old Nov 13, 2003 | 12:46 AM
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Man it's too late now... **** I knew I should have put RTV on both sides, **** **** damn crap! Oh well it came stock dry so I don't see why it won't work dry??? I already have the opti and water pump bolted over the timing cover so I don't want to take it off again. And god forbid if I have to take that dreaded hub off again. I would give a ******** not to have to take that damn hub off again.

But yea, who has put it on dry? For sure next time I will have both sides ultra coppered but the block side is going on dry this time. Good thing I hit the RTV where it meets the oil pan at least I'll have some insurance.

MADWOLF - It seems like every post one of us makes the other is looking for the same answer =) What cam was it you were installing??? The 230/236? Or the 224/230??

Last edited by 96 WS6; Nov 13, 2003 at 12:50 AM.
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