Exhaust leak

[Malisz]

Hi, been to the garage today and the guy found a leak. He quoted me 350 pounds to fix it, but by the looks of it I think I can do it myslef (correct me if I am wrong).

Anyone knows the number of the part in question? Mechanic said it is some kind of gasket. Photo below.

Mechanic also suggested a "stop-leak" liquid/solution? Anyone knows one that would do the job?

Photo taken from a youtube video. The leak is between catalythic converter and the exhaust I believe.

[embee]

Those type of spring loaded joints usually have a "brillo pad" type gasket made out of knitted or woven wire formed into a doughnut. These allow for slight movement without losing the seal.
I'm not sure of which exact model you have but it might be here
https://www.eurocarparts.com/exhaust-parts
There are a couple of versions listed, both items are under £10 so pretty cheap.

I've had to undo exhaust clamps/joints on various cars. My advice is to get some proper penetrating oil, Plus Gas or similar, and soak the bolts for several hours. I've found that using an impact wrench and repeatedly reversing the drive, undo it a bit, do it back up, undo it a bit etc etc and add some sort of anti-seize paste (copper grease usually on steel parts) on the exposed threads as you go, will help to stop the bolts seizing into the threaded bosses and then shearing off. Take it easy, back and forth, plenty of lube, and they will quite probably come out OK. If you try to force them out in one go they'll very probably shear off. If they shear off in the holes with nothing to get hold of, it will then involve re-drilling and tapping the holes, a world of pain usually and definitely best avoided.

[Malisz]

Thanks for the advice, appreciate it!

Looks like the seal I am going to need is less than 3 pounds. Will give it a go.

[fashionphotography]

looks like its had new bolts in recently but the bellmouth is rotton. think mid sections are cheap on ebay . id just get a new mid exhaust

[Malisz]

Thanks, but the photo was taken from a youtube video.

Have everything ready to do it myself now. Friday is the day.

[FBogdan]

Hi! Please check first what type of gasket do you need. The original exhaust has a circular gasket, like a metallic o-ring which fits perfectly into a small round dent into the exhaust, but after market exhaust are not  made like the original one, but they need a plate metallic gasket with 4 bolts holes.

[NiftyTapestry]

Hope it went well today. I nearly replaced the ones in my exhaust a couple of years ago but they were in perfectly good condition when I took them out. It wasn't leaking from those joints. It sometimes looks like that because the gap is quite big there but take it apart and get a good look at its condition before replacing in case the leak is coming from somewhere else.