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Old 12-24-2002, 10:34 PM
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Post Gasket sealer pro's and con's

What works better on gasket's such as valve covers, oil pan, intake manifold, water pump, and especially rear end cover gaskets. I have used RTV and Indian head on different ones in the past and was just wondering what everone thought sealed the best?

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Old 12-25-2002, 04:21 AM
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just like every thing else , every one has what works for them. for valve covers, i super glue the rubber , reusable gasket, to the valve cover. i do not use any thing between the gasket and head. on intakes , i use red rtv on the end instead of a gasket and just a little on the water passages. i only use 9" ford housings , so i can only give you what i use installing the 3rd member, a small amount of red rtv on both sides of the gasket. having said all of this, clean mating surfaces with thinner. nascar uses red rtv for exhaust gasket. hope this helps
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Old 12-25-2002, 08:32 AM
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Thanks 48 Anybody else?
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Old 12-25-2002, 09:35 AM
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Anymore, I find myself using silicone only on alot of components. If it's an engine that requires periodic valve adjustments, i'll glue the gasket to the valve cover side, and use not sealant on the cylinder head. On street engines, where no maintenance is required, I've been using the black RTV on most everything, and throwing the gaskets in the garbage, if you do it this way, scuff your surfaces up with a scotchbrite disc, and clean it good with lacquer thinner, or a similar solvent. I'll lay an 1/8 bead on the surface to be sealed, and lay the part on it, install the bolts, and let it set before I snug it down.
I have just found that using sealer with gaskets leads to alot of gaskets squisshing out, and slow oil and coolant leaks. I build engines, and own a general repair shop, and I hate oil leaks!!!!!!
I use the black RTV most, but use the orange high temp on things like EGR's, and other exhaust related stuff. The GM Goodwrench sealer is good, stand alone stuff, as well as some of the aerosol sealers like McKania or the Right Stuff, or buy it in a caulking gun tube.
I still use gaskets on the front cover, the water pump,of course the intake and head gaskets, but the valve covers, intake end gaskets, and oil pan, I ditch the gaskets on these.
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