Exhaust sealant after converter

[TomT]

Has anyone found a sealant which works well at the infernal ball and socket connection between the conterter outlet pipe and the muffler inlet pipe?

[Ozark Lee]

The problem there is normally the clamps themselves. Beyond that about all you can do is weld it but that sets you up for a turbo back or manifold back replacement the next time something goes wrong. When I replaced my son's exhaust manifold I noticed that the joint had been welded.

Try the new clamps first, they are fairly cheap.

...Lee

[FCPEURO]

+1

I have never heard of a sealant that has worked for this. Just throw on some new claps and you should be good.

[TomT]

A new clamp was installed with the converter but it still leaks. Apparently, the socket connection at the inlet of the muffler changes shape a bit over the years. The seal is maintained because the ball connection at the exit of the converter changes with it. When a new converter only is installed, however, it doesn't precisely mate with the old muffler inlet. Hopefully, the metal will creep a bit with heat cycles and make a better fit eventually.

[JDS60R]

Exhaust sealants are popular in Europe for performance/luxury cars. There are many to choose from. Hylomar is a well know name with this product.

http://www.ehylomar.com/Sealants-Adhesi ... t-Sealants

I have also used hi temp Copper from Permatex but this is better with temps at 700f or below .

[cattledog]

I've used Volkswagen exhaust connector/clamps. They are about 5 inches long and have two clamps on the sleeve. Cut the ball off the one end and the socket off the other . Measure the outside diameter with a caliper and check out those connectors, there are about 5 or 6 different sizes. Used one on a Subaru today, worked sweet. Did it to an 850 last week. A bit easier for me though, our Volvo dealership is also a Volkswagen dealer, oh yea, and I work there
Also NAPA has some black exhaust goo/sealer that works fantastically.