High Temp. Silicone - Team Camaro Tech
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post #1 of 9 (permalink) Old Feb 1st, 00, 12:20 PM Thread Starter
Join Date: Oct 1999
Posts: 188

i just took my cat off my 87 because it was rusted through and put a piece of pipe in its place and one end has an adapter on it. everything fits perfect and everything is clamped together. i know it should be welded, but i know muffler shops clamp systems together all the time. well my problem is that some exhaust is leaking out were the clamps are and i can't figure out a way to stop this(clamps are as tight as i can get it). i was thinking of putting high temp. silicone on the inside of the pipes and around the seems and put it back together. will this stop the leak until summer when i put a true dual system on.
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post #2 of 9 (permalink) Old Feb 1st, 00, 12:49 PM
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No, the exhaust is hot enough to burn the silicone away.
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post #3 of 9 (permalink) Old Feb 1st, 00, 01:07 PM Thread Starter
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is there anything that i can do to stop this leak? i really don't want to spend the money to get it welded because i am saving for a new engine and exhaust
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post #4 of 9 (permalink) Old Feb 1st, 00, 06:03 PM
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Location: Racine WI
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I think NAPA used to sell a type of muffler cement for patching holes in mufflers.Maybe this would work.I've never used it,or anything like it.If not at least the guys there can steer you in the right direction.

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post #5 of 9 (permalink) Old Feb 2nd, 00, 10:11 AM
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67 Drake is correct. The product is called a muffler bandage. Basically it is like a white duct tape that you wet then wrap around the leaky area. Then you start and drive the car. The heat from the exhaust cures it to a rock hard finish. So hard that you will have to cut it off to remove it later. You better do something to fix that leak now. Breathing exhaust fumes is very, very unsafe! It should not cost very much to have the pipe welded at both ends.
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post #6 of 9 (permalink) Old Feb 2nd, 00, 10:16 AM
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Forget the cheap fix - exhaust leaks, particularly in the area yours is, are nothing to mess with. Go get it welded at a muffler shop - it can't cost enough to justify getting asphyxiated.

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post #7 of 9 (permalink) Old Feb 6th, 00, 07:32 AM
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Location: Ontario, Canada
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Sorry to say this, but by clamping down the clamps as tight as you could get them started your problems. You have crimped the pipes, now you have leaks, when tightening muffler clamps bring them just tight enough to keep from vibrating loose, Heat water and rust will take care of the final sealing after just a few days, In your case try pulling the pipes apart and use an expander to round out the pipes and try again, Not too tight but just right!!!!
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post #8 of 9 (permalink) Old Feb 6th, 00, 07:55 AM
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Permatex also makes a exhaust joint sealer part #mtk1 may be just the ticket.
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post #9 of 9 (permalink) Old Feb 6th, 00, 09:35 AM Thread Starter
Join Date: Oct 1999
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thanks guys for all your help. i bought that tape and put it on and it works fine. it only has to last me about 1-2 months. btw i didn't clamp down on the pipes that hard that's why i didn't understand why it was leaking, but thanks for all you rhelp
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