Exhaust leak problem

[93steeda]

I got a set of Mac shorties used and put them on and have a bad leak. I put new gaskets on and tightened the bolts tight. Its only the passenger side leaking. I was wondering if I could double up on the gasket and maybe seal it better or would this be a bad idea?

 

[Jo_885o]

Just get a thicker gasket preferably a copper one, had the same problem.

 

[93steeda]

Just get a thicker gasket preferably a copper one, had the same problem.

Where do you get the copper ones at?

 

[jef0509]

I had a set of Mac equal lengths on the car when I got it and they loosened up over time and warped. They never sealed properly after that. I heard they also may leak at the collector. Check out all those things, those are the cheapest, if all else fails get a set of BBK, they have thicker one piece flanges, even used they are less likely to give you probs, atleast in my opinion...but good luck with the MAC's, try to make them work before you spend money

 

[Jo_885o]

Go to summitracing.com and go to exhaust and u will find 'em only 2?.?? something dollars.

 

[93steeda]

Thanks for the info, I'll try different gaskets.

 

[88stangmangt]

u prob didnt get them sealed good drop it back down scrap the block with a razor get it all flat a smooth.

P.S. dont double up on gaskets because that is all the less thread you get into the heads.

 

[93VertLX]

I had the same problem with my mac shorties, I just took them off and did it again with new gaskets, and it worked fine that time.

 

[jrichker]

Has anyone tried heating the pipe with a torch and then tightening the bolts? Since ith is heat that causes the pipe to twist, maybe heating it read hot and then tightening the bolts will pull it back into shape.

 

[88stangmangt]

ya but it doesnt get that hot from the heads.