TexasPthFnder95 Posted September 23, 2010 Share Posted September 23, 2010 I have a small exhaust leak on my drivers side manifold i have already replaced the passengers side manifold but dont feel like removing everything for this one. Is there anything i can use to seal and stand up to the heat at least for a little while anyways?? And note this is a very small exhaust leak... Link to comment Share on other sites More sharing options...
OldSlowReliable Posted September 23, 2010 Share Posted September 23, 2010 It won't hurt anything, and as far as I know nothing will stay there besides welding it which would be even more work than fixing it. I say leave it until you can get around to it... I'm assuming you mean the manifold is leaking... Link to comment Share on other sites More sharing options...
Tungsten Posted September 24, 2010 Share Posted September 24, 2010 JB Weld Link to comment Share on other sites More sharing options...
CrazyLarry Posted September 24, 2010 Share Posted September 24, 2010 Tighten the manifold bolts might get you by for a while. Link to comment Share on other sites More sharing options...
Kingman Posted September 24, 2010 Share Posted September 24, 2010 JB Weld runs off at only a few hundred degrees. It will not withstand exhaust temperatures. You cannot fix an exhaust manifold leak, if it's at the head, unless you replace the broken studs and gasket or tighten the nuts if they're loose. Always replace the gasket whenever you remove a manifold. You can use super ultra copper RTV on the new gaskets to create a much better seal, but it only works if it's in between the head/gasket/manifold. Putting it on the outside won't do anything. There needs to be at least one stud holding the flange on per port, and then you can use a ton of the RTV to seal the rest. Small leaks at the manifold don't hurt anything, they're just annoying as hell. Link to comment Share on other sites More sharing options...
Precise1 Posted September 24, 2010 Share Posted September 24, 2010 Never use "a ton" of RTV, all you do is waste it or have it wind up inside what you are sealing. 1/16"-1/8" bead is all anything will ever need and even then it tends to squeeze out... B Link to comment Share on other sites More sharing options...
Kingman Posted September 24, 2010 Share Posted September 24, 2010 True, I consider 1/8th" a "ton" because it's more than plenty. Shoulda been more clear. Link to comment Share on other sites More sharing options...
jeremyelvis Posted October 15, 2010 Share Posted October 15, 2010 I have a broken stud and the sound was BAD! I used the super copper and it worked really good and turned my check engine light off. What I did was put a decent bead on the head, put the gasket and th manifold and bolted them up to where I ran out just a tiny bit, let it set for about 8 hours and tightened it up all the way. Its been about a month and I've had no problems with it. Link to comment Share on other sites More sharing options...
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