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Brady McQueen (aka 1carguy) [ View ] [ bradymcqueen@comcast.net ] [ Car Ads ] [ Blogs ] Pleasanton, California (925) 719-3200

Whats the best sealer to use to seal intake bolts from leaking oil? It's a sbc with an aftermarket chromed intake manifold (probably from China) and the 2 center bolts on both sides leak, creating little puddles of oil in the manifold that cook from the exhaust crossover and stains the chrome. The bolts are chromed or stainless allen head (rounded button head type). If I ever take it apart later, I don't want problems because I used the wrong thread sealer.

Comments

Posted by tazhog54  -  09/25/2007 12:09 AM I would say it's your gasket leaking !! Use Fel-Pro gasket kit tazhog54 [ View ] [ Email ] [ Blogs ] [ Car Ads ] visalia, California   Posted by Eliot Ness  -  09/25/2007 01:20 AM That isn't too uncommon on a SBC. I just use Loctite RTV Silicone (high temp automotive) on the offending bolt threads. John [ View ] [ Email ] [ Blogs ] [ Car Ads ] Lexington, Kentucky   Posted by Italianguy63  -  09/25/2007 06:32 AM I use Ultra-Black by Permatex. I've heard Red and Grey are good too for hot/oily applications. Mark Speed is about how fast do you want to spend! [ View ] [ Email ] [ Blogs ] [ Car Ads ] Bartow, Florida   Posted by Crazyhorse Rod Shop  -  09/25/2007 06:47 AM well i'll get flamed but the leak is caused by excessive crankcase pressure. the crossover bolts get hotter and swell and contract allowing pressure to push oil up the threads. i use arp sealant . the trick is to vent the crankcase well. real common on older motors and ones running only pcv and push in vent. now for the flaming. your running an edlebrock carb. which is running fat, which is washing down cyclinders allowing compression by the rings. dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003   Posted by Italianguy63  -  09/25/2007 06:48 AM LOL - Shine you are a piece of work! Speed is about how fast do you want to spend! [ View ] [ Email ] [ Blogs ] [ Car Ads ] Bartow, Florida   Posted by Crazyhorse Rod Shop  -  09/25/2007 07:09 AM maybe , but my motors dont leak or smoke. if you run the push in vent on valve covers drill the holes out larger. it helps some. dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003   Posted by Italianguy63  -  09/25/2007 07:51 AM Mine don't either... But I always use quality gaskets, put RTV on threads, take my time, make sure the surfaces are absolutely clean when I mate them, etc. I'll have to remember the vent trick-- hadn't heard that one before. Speed is about how fast do you want to spend! [ View ] [ Email ] [ Blogs ] [ Car Ads ] Bartow, Florida   Posted by jcbyrd  -  09/25/2007 08:29 AM I agree with Shine, excess crankcase presssure will cause this leak.Make sure your valve cover grommets for the push-in breather and the PCV valve are not the type that have a baffle built in or the foam rubber in them. This will not allow them to vent adequately. I learned this the hard way when I replaced my grommets with this type and the intake bolts started pouring the leak. I changed them back to the open type and the leak stopped. No intake gasket will stop oil from being forced out around the intake bolt threads. I also use Permatex Ultra Black Hi-temp to seal the threads. jcbyrd [ View ] [ Email ] [ Blogs ] [ Car Ads ] Liberty, Kentucky   Posted by Italianguy63  -  09/26/2007 04:04 AM I did have a similar one I got that would pool radiator fluid on the intake-- same deal (put RTV on the threads). Speed is about how fast do you want to spend! [ View ] [ Email ] [ Blogs ] [ Car Ads ] Bartow, Florida   Posted by orphans2  -  09/25/2007 01:12 PM Brady, now you know why you got such a great deal on that new car. Just like an old geezer eating beans, got to get rid of that gas someplace. (hehehehe) orphans2 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Stewartstown, Pennsylvannia Charter Member since November 2001   Posted by tlp1968  -  09/25/2007 01:57 PM My engine was leaking oil around the valve cover bolts, used sealant then it was leaking out the dip stick tube, the problem was not the bolts, gaskets or the right sealer it was 2 broken rings. OOpps! StreetRodding.com Marketing Director [ View ] [ Email ] [ Blogs ] [ Car Ads ] Springfield, Illinois Charter Member since August 2003   Posted by dixie  -  09/25/2007 04:36 PM If you tow that thing around in a trailer you want have to worry about all that. haha hammer down jim grace [ View ] [ Email ] [ Blogs ] [ Car Ads ] dade city, Florida Charter Member since January 2006   Posted by hotrodgene  -  09/25/2007 10:58 PM Had same problem on one of my rods and all I did was remove the two bolts and put RTV(blue)on threads and saw no more oil. Gene Riffe [ View ] [ Email ] [ Blogs ] [ Car Ads ] Saint Petersburg, Florida   Posted by 37fordguy  -  09/26/2007 12:32 AM RTV the bolts and carry shop towels to the car shows. 37fordguy [ View ] [ Email ] [ Blogs ] [ Car Ads ] North Richland Hills, Texas

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