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smashmatt
10-01-2010, 7:47 AM
how can i fix an exhaust leak on my 77 ironhead? the clamp at the top is tight, but it is still leaking. any help would be sweet.

Doc14
10-01-2010, 10:53 AM
Red gasket maker on the exhaust flange and on the inside of the pipe, make sure you have GOOD exhaust clamps, gotta get them tight.

Tito
10-01-2010, 2:21 PM
A slice off a beer can will help if it just won't seal any other way. Also take a look at the other point(s) you have securing the pipe, like muffler clamps, etc. If those are out of line, it will never let you get a proper seal at the head.

rooster52478
10-01-2010, 4:07 PM
http://lasoomedia1.com.au/imageicon/SCA/PROD/J00510496/C_001/Page_001/SCA_PROD_J00510496_C_001_Page_001_i114976.jpg

I was having the same problem until I used this stuff. Since then I've had none.

xllance
10-01-2010, 7:49 PM
A slice off a beer can will help if it just won't seal any other way. Also take a look at the other point(s) you have securing the pipe, like muffler clamps, etc. If those are out of line, it will never let you get a proper seal at the head.

Yeah, loosen the mounts and clamp the pipe down nice and even around the flange. Then shim or whatever you have to do to mount the pipe in this position. Beer can does work great as a shim. Be careful overtightening the clamps if it's not "squared" on the flange, you could break the flange.

SMChewy
10-01-2010, 8:10 PM
http://lasoomedia1.com.au/imageicon/SCA/PROD/J00510496/C_001/Page_001/SCA_PROD_J00510496_C_001_Page_001_i114976.jpg

I was having the same problem until I used this stuff. Since then I've had none.

+1 Put a nice little layer on both the inside of the pipe and the flange, let it set up, then bolt em up!

ARBY
10-02-2010, 5:57 AM
http://lasoomedia1.com.au/imageicon/SCA/PROD/J00510496/C_001/Page_001/SCA_PROD_J00510496_C_001_Page_001_i114976.jpg

I was having the same problem until I used this stuff. Since then I've had none.

Yep, this stuff works for me. I put a nice bead around the pipe flange, slip on the gasket then run another bead around the pipe and the gasket. Set it in place and tighten it down and carefully clean off what squeezes out.

Make sure the silicon is fully cured (24/48 hrs.) before you light up the engine. Never tried the beer can shim idea but I will.