Exhaust Collector Gasket

[MrTwister]

We’ve been smelling fumes inside the passenger compartment of our newly acquired ‘71 Duster, and it’s bad enough that it lingers on your clothing even after a short ride. Trying to find the source of the smell, I started the car up and felt exhaust leaking from the joint where the intake bolts up to the exhaust.

It doesn’t look like the flanges are completely true and won’t bolt together flush. Is it possible to get a thicker gasket that can seal this gap? If so, would it be possible to install it without removing the entire left side exhaust?

Thanks for any input!

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[1963dartgt]

http://catalog.remflex.com/
Try those but that gap looks really big. Maybe two.

 

[cudascott]

The best fix would be to cut the pipe From the top down to about 1/8” from the bottom and tighten the flange up then weld up the cut.

 

[devilchicken]

I agree with 1963dartgt remflex all the way

 

[MrTwister]

http://catalog.remflex.com/
Try those but that gap looks really big. Maybe two.

Can you stack 2 together?

 

[doug 371]

I usually double them up right from the get go...

 

[dano]

Remove both and install a ball flange set. I've also see "Header Buddies" but have never used them and they only work on certain header flanges.

Over-tightening is the issue, as the bolt ends bend in the thin spots between flex up and leak. Thicker flanges would help prevent this, or the above.

 

[1963dartgt]

Heres an idea of gasket thickness differences.

 

[Matts440]

Cut and weld V bands and be done with gaskets forever lol

 

[MrTwister]

http://catalog.remflex.com/
Try those but that gap looks really big. Maybe two.

Will give two a try to start. Don’t weld myself and taking the car out for drives is one of our escapes from lockdown so I don’t want to take it in somewhere right now to get that done. Thanks for all of the replies everyone!

 

[12many]

Try Percy’s Seal 4-Good aluminum gaskets. Truly reusable and no leaks, at least in my application.Seal-4-Good ALUMINUM COLLECTOR GASKETS - Taylor Cable Products