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Old 02-27-2005, 10:29 AM
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Gasket sealer

Some of you told me not long ago not to use sealer on a tranny pan. Well then I'll take the advice, but I was wondering if there are other places where no or only a particular kind of sealer must be used. I generally use sealer on all gaskets I'm replacing unless I'm told otherwise.

Martin

BTW: Do permadry oil pan gaskets need sealer or not?

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Old 02-27-2005, 11:08 AM
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If both surfaces are flat you should not need any sealer on the pan gasket. It can help with install if you use a light sealer such as a spray on Hi Tac to keep the gasket aligned when installing the pan to the tranny. With tranny pans it is always wise to check the mounting flange surface on a flat surface as they are almost always over torqued. This will bend the flange area leading to poor sealing.
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Old 02-27-2005, 11:13 AM
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I like using the blue RTV. It seals well, and doesn't set up too fast. I live in Cal. Our summertime gets pretty hot and dry. The orange sets up too fast.
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Old 02-27-2005, 02:44 PM
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On a tranny pan,you could use the spray a gasket in red just to form a type of tack to keep the cork in place. That is how I do mine,just a little though,would not think of putting RTV on it,because it will squeeze out on the inside lip also and could block some pretty important passages. For intakes you can use red or black Hi-Temp RTV,Most inexpierenced people tend to apply the sealent as though they own stock in Perma-Tex,you do not need to put down a thick bead.For valve covers I found a style that is a type of reinforced plastic/rubber,no sealent needed. I use Hi-Tak red on the intake gaskets and Hi-Tak Copper on the oil pan.Hi-Tak red on the H2O pump.
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Old 02-27-2005, 08:41 PM
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When I worked in a tranny shop we used Hi-Tac on all the tranny pans. We didnt want any coming back. I still use it on trannys,intakes,thermostats, and valve covers. Head gaskets is one place you dont want any sealer.
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