Hole in mid-pipe of exhaust

[AMMsterz]

Recently, the several inches long mid-pipe, which connects the aftermarket muffler to the underneath of the car, started having visibly large holes on the upper part. I had a welder replace that pipe and re-welded. Ever since then, the sound of the muffler has been clearly smoother -- back to when it used to originally be I believe. However, I could feel some air being emitted from where the pipe was newly welded although no abnormal sound could be heard nor could any hole be noticed or felt. I informed the supervisor where I had the welding job done and he said that as long as I don't hear any "vibrating noise" it is normal. I don't hear anything out of the ordinary, so should I be concerned?

Cheerz

[petrified.rabbit]

its still a leak, just not as large of a leak.

i usually end up "boogering" up my welds on exhausts to get no air blowing out of the joints.

[AMMsterz]

Lolz! How do you mean "boogering up"? coz I've started picturing it literally in my head! I've read about muffler tapes -- any comment on that?

[petrified.rabbit]

not have a clean looking weld because you tack over any spot that blows air..?

some tapes are "ok" but i would probably attempt jb weld or something you can smear around the weld.

[AMMsterz]

Just had quite possibly the most frightening drive ever: after having the exhaust checked for a leak, which resulted in a schedule for a re-welding, the car kept stalling as the RPMs dropped below 1000 even on neutral! So I had to treat the car like an F1 car to keep the engine running at no less than 1000 RPMs, forcing me in low gears with noisy revs!

[oscare003]

^ i think boogering is best. had leaks on my honda, hated it jb weld and the tape didnt work. just made a big mess. and vids of muffler?

[AMMsterz]

No vids of the muffler yet... Same shop that did the welding will have it re-welded... not sure what technique would be applied but they may "booger" up the welds...

[petrified.rabbit]

i tend to only need to do the while its on the car and i am laying under it.. if the pipes are out of accessible, then i can seal it with a nice bead.

[hdblue]

i tend to only need to do the while its on the car and i am laying under it.. if the pipes are out of accessible, then i can seal it with a nice bead.

Hi,

I agreed with you. Your points of view make me thinking about some thing for my project.

Pls try to keep posting.

If you want to do more info, you also visit at:Pipe welder job description

Tks and best regards

[Thymeclock]

Lolz! How do you mean "boogering up"? coz I've started picturing it literally in my head! I've read about muffler tapes -- any comment on that?

I can tell you what will work if an exhaust pipe is straight and has a hole in it: high heat type silicone rubber. However, before you put it on, you must have a pre-cut piece of thin metal that will fit over the area. Slather the perforated area with the high-temp silicone goo, than place the metal patch on and secure it tightly in place with two hose clamps. The repair will hold - but don't be surprised if the pipe rots out somewhere else along its length.