Good evening all! While I was taking a break from trying to get my up stream O2 sensor unfrozen (Still frozen #%$!) I was trying to heat the exhaust and thought I would have a look at where the leak was. Found it!
Advice? Just replace the stud with a nut and bolt and hopefully I can get the other bolt off to fit the gasket. I hate working on exhaust. It starts then you end up replacing everything.

 

I can't open your video but the studs are available at auto parts places. I remember that leak from the passenger side on your video. I had a stud break off and could not extract it so I drilled and used a nut and bolt. It was the biggest pain in the *** you can imagine to take it off and put it on. I ended up replacing the manifold just to avoid messing with it. I'm sorry I can't remember the thread pitch and size but my auto parts place found it on their computer.

Who am I kidding. I have had about ten studs break off!

I have re used those gaskets but they never seem to seal correctly. I have even doubled them up and made my own with sheet gaskets. But the best seal will be new gaskets. I've always had to order them in the Internet.

I'd sure try to do it without removing the manifolds. Otherwise you will need new manifold gaskets and probably a few bolts.

 

Every single exhaust schematic I have seen does not show a gasket at that flange (the one the cat pipe connects to the muffler. it is a two bolt and one has rusted off. I have done something similar with my daughters car with stainless bolts.

 

When I've seen that joint go together on other exhaust systems there isn't a gasket there, sometimes some assembly paste. Looks to me to be straight nut/bolt/hole job. Maybe you could take he other bolt out, get some goo in there, put two new bolts in. Or just whack one in, see what happens.

Edit, your post is slightly confusing, cos it mentions a stud and a gasket, which indicates it's a manifold thing. But it's not.

 

Wait I'm confused about where you mean, or am I?

There is not a gasket where the exhaust bolts together by the muffler. The pipe has a rounded lip that is made tight when you tighten the retaining ring. Between the cat and manifold there is a gasket at the flange with the three studs.

 

After the muffler, the three bolt flange has a gasket. After the cats before the muffler, the two bolt flange does not seem to have one.

 

Sorry I would call it a stud cause its pressed into the flange. That might not be correct however.

 

The stud near the muffler is pressed in. I have had to knocked them out before. I just used a random bolt and nut from the garage in its place.

The ones on the front flange screw in.

 

The two screw flange bolts screw in? Even better

 

Yikes hahaha a. I am so confused. The two bolt flange in front of the muffler is a pressed in stud. I've popped mine out with a c clamp after one broke and just ran a regular bolt with a nut. There is no gasket there. It has that rounded lip that centers and seals the pipe. Actually I think it was a ball joint clamp that I forgot to return and just had to pay for.


The flange just under the exhaust manifold has screw in studs and a gasket. They are a pain in the butt to get out if they break, and they break often. They usually just break off closer unless you use a stud remover. And even then you usually break them and screw up your new stud remover.