Page 1 of 1

Exhaust Leak

PostPosted: Fri Jan 09, 2009 7:10 pm
by BLaCkSiLo
hey guys,

i have a 94 ex with a megan 4-2-1 header, a magniflow high flo cat and a full aluminized flowmaster 50 exhaust all the way back.

i have had an ongoing exhaust leak well since about 2 weeks after i got my megan header and i know these are prone to leak so i have changed the gasket by cutting out a template from a sheet of material.

the only other places i can think of that the leak is coming from in the head seal or the donut gasket on the flange to the cat.... i just replaced the head exhaust gasket around 6 months ago and the donut gasket seems to be the culprit.

have any of you guys shared the same problem? someone mentioned a heat shield rattling but i just retightened those bolts as i just did the rear disc swap on my car, so before i get it back out there, any suggestions on how to keep it from springing a leak in the future?

i guess i can get a new header but that doesnt seem to make much sense and the exhaust does not have any holes in it, it was just welded up about 6 months ago and is still pretty much brand new so its from the donut-flange gasket forward.

thanks!
James

PostPosted: Thu Jan 15, 2009 11:21 pm
by trustdestruction
you sure the megan midway flange gasket didn't blow again after you replaced it?

those things are a bitch.

here's what I did and I haven't had a problem since.

http://hondacivicforum.com/forum/showthread.php?t=70510