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Thread: RTV huh..

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    Forum User verified Feedback Score 1 (100%) Amphiron's Avatar
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    RTV huh..

    Used the stuff from auto zone. Everywhere I used it during my rebuild is leaking. Sweet. Don't use Permatex, period.

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    I've used gray permatex rtv several times on oil pans with no leaking issues. I also use a different kind of permatex thread sealer on fuel line products, works great for me. Not trying to be a dick but maybe there's a bit of operator error involved? I know it can be tricky to put the oil pan on without catching the freshly RTV'd edge on the oil pickup, thus smearing everywhere and destroying chances of a good seal.
    . 1992 VR4 - Java Black Pearl paint (2004 STI) with combo '92/'96/'99 custom front end .
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    Forum User verified Feedback Score 1 (100%) Amphiron's Avatar
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    Everything was sealed fine until the engine started to overheat now it all leaks. It was red RTV.

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    Wrench Monkey Not Verified Feedback Score 1 (100%) TwIzTeD_3kGt's Avatar
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    Never had a problem with Permatex.

    I've used the cheap stuff and 'The Right Stuff' without issues. Maybe you didn't clean the surfaces properly? Or something warped from overheating? Or the temperature it reached was higher than the RTV you selected was designed for?
    Last edited by TwIzTeD_3kGt; 02-09-2011 at 06:57 PM.

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    Forum User verified Feedback Score 1 (100%) Amphiron's Avatar
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    It's designed for 650f. I spent a lot of hours scraping off old gasket until all I seen was nice clean shiny metal on EVERY mating surface. I guess it just got too hot.

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    Member Not Verified Feedback Score 3 (100%) Unknownvr4's Avatar
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    i used the black permatex on everything and nothing leaks on mine..
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    Why? Because Race Car. verified Feedback Score 0 akotten's Avatar
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    Where are you leaks coming from?
    91 R/T TT
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    Not A DSM verified Feedback Score 3 (100%) Polygon's Avatar
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    Quote Originally Posted by Unknownvr4 View Post
    i used the black permatex on everything and nothing leaks on mine..
    Same here. I've always used black Permatex with no leaks.

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    Member verified Feedback Score 0 DocWalt's Avatar
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    Always used black permatex, and no issues.
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    Diamonds and Rust Feedback Score 1 (100%) gltasn's Avatar
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    black or grey is for oil, blue is for h2o, red/copper made to resist heat. i like permatex black for the pan not the silicone but the bottle called the right stuff. get the 15min set time as the 1 min is kinda short unless you are a fucking pan master like me!

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