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Old 10-07-2002, 06:59 AM
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Post Valve cover gaskets

Ok i wont even say how i do them. I need a really leak proof way to put on valve cover gaskets on a 79 350.

Mine always leak in the back corners. P.S. how thight do you tighten them.

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Old 10-07-2002, 07:08 AM
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Glue the gasket to the cover if you use a cork gasket. I use 3M adhesive for cork, the yellow adhesive. apply to both surfaces, cork and cover, let sit until just tacky and put together. Don't tighten too tight, I'm not sure what the torq would, but don't crank down very hard.

I've used the Fel-Pro rubber gasket and don't glue them.

Is your covers in good shape, are they bent were the bolt holes are, if try to straghten. You might want to invest in, oh heck, I can't remember what they're called, but they spread the clamping force over a larger area.

[ October 07, 2002: Message edited by: MHenricks ]</p>
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Old 10-07-2002, 10:43 AM
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Load spreader washers, Get'em at any parts store for 3.99 a set.
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Old 10-07-2002, 10:53 AM
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is the 3m adhesive better than the permatex aviation gasket maker? i heard that was good. What should i clean my drains in the heads out with? i think one might be a little slow to drain.
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Old 10-07-2002, 12:46 PM
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tork is 5 ft. pounds try geting the felpro with the metal rod in the gasket. they cost more but are worth it. make sure your covers aint bent
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Old 10-07-2002, 07:51 PM
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I had a valve cover that would not seal on a 350 engine one time and I discovered the gasket surface on top of the head was so bad that it could not seal. I smoothed that down with a dremel tool and that fixed the problem. Check your gasket surfaces on both the head and the valve cover, use a new gasket, torque to 5 ft lbs, and you should be OK.
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Old 10-07-2002, 08:32 PM
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that yellow stuff is good stuff but if you have to get it off it is a bi#%ch. or invest in a good set of alumminum covers $69 for a good cheep set from any summit or jegs.
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Old 10-07-2002, 09:40 PM
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Thanks i really appreciate all the help
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Old 10-08-2002, 06:44 AM
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Yeah, anytime you use the yellow goop, just hope you are not the guy who has to take the engine apart next time.
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Old 10-08-2002, 05:34 PM
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Talking

I use aluminium CAST covers. Permatex the cork to the cover. Run them plain like that a couple of days, then remove them again. There will be a indentation in the cork. Clean with lacquer thinner, then put a medium bead of ATV in the indentation. Let sit untill not sticky. Reinstall, use the spreaders, torque to specs.
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