Need tips on fixing Exhaust

[Vdubchaos]

Connection between my back pipe muffler and middle Cat has completely disintegrated. I'm trying to come up with a quick fix vs buying new muffler/Cat etc.

I was thinking about simply cutting the pipe right next to the connector on both sides and possibly putting a pipe over it to connect to the other?

I'm thinking the connector would have to be a perfect size and I would need clamps.

I also thought about doing this but I'm looking at good 2-3" of space there.

http://www.youtube.com/watch?v=QRVkTmNSREA

Any suggestions or tips?

 

[slag]

Go to a shop, get a small piece flared at the ends. slide it over the broken area, tack weld it and clamp it down. Problem solved.

 

[Vdubchaos]

Go to a shop, get a small piece flared at the ends. slide it over the broken area, tack weld it and clamp it down. Problem solved.

That's what I was thinking. I don't have a welding machine/not a welder.

Assuming the piece fits well, I was simply going to use JB Weld/Exhaust sealant + clamps?

Getting the piece might be trouble but I have to find out pipe diameter and length + flared section length.

 

[JCH13]

JB Weld is a laughably terrible idea to repair an exhaust pipe with. Don't do it.

For a no-weld solution I would sleeve it with another pipe and clamp the sleeve in place.

It might well be worth the $50-100 to have an exhaust shop repair it though.

 

[Vdubchaos]

JB Weld is a laughably terrible idea to repair an exhaust pipe with. Don't do it.

Why, please explain

For a no-weld solution I would sleeve it with another pipe and clamp the sleeve in place.

It might well be worth the $50-100 to have an exhaust shop repair it though.

I've been considering that too.

 

[JCH13]

Why, please explain

Temperature. JB Weld, like all epoxies, is a plastic. You wouldn't make an exhaust component out of plastic would you?

http://www.jbweld.com/faqs/

Will J-B Weld work on an automotive exhaust?

Because of the extreme temperatures of exhaust systems, we do not recommend J-B Weld for use on exhaust manifolds and catalytic converters. Nor do we recommend the product for repairs within the combustion chamber. However, in areas where the continuous temperature is less than 450º F, we do recommend our HighHeat epoxy putty stick.

 

[Vdubchaos]

Temperature. JB Weld, like all epoxies, is a plastic. You wouldn't make an exhaust component out of plastic would you?

http://www.jbweld.com/faqs/

First you have to consider the actual temperature of exhaust in different areas.

It can be at about 300 degrees at the exist and 600-700 closer to the engine.

Close enough. I have used JBWeld on exhaust before (even on this car) succesfully.

When the coupling initiall broke I used a clamp + JB Weld. I checked on it first week or so and once it hardened, it remained that way. I even poked at it few times after long trips to see if it softened.

It's fine

This is about midway down the exhaust btw. And I did use High Heat epoxy since it's about 10" from 2nd Cat.

 

[JCH13]

First you have to consider the actual temperature of exhaust in different areas.

It can be at about 300 degrees at the exist and 600-700 closer to the engine.

Close enough. I have used JBWeld on exhaust before (even on this car) succesfully.

When the coupling initiall broke I used a clamp + JB Weld. I checked on it first week or so and once it hardened, it remained that way. I even poked at it few times after long trips to see if it softened.

It's fine

This is about midway down the exhaust btw.

So you used a clamp and JB weld the first time it broke... and then it broke again? That doesn't sound like a successful use of JB weld...