[DieConeDie]

I have an exhaust midpipe that was given to me by a friend for my car. Before I install it, I want to get rid of some lumps of metal slag that are inside the ends where the flanges were welded on.

Can I use a dremel to do this? What kind of bit? Do I need to rent a torch or have a pro do this?

 

[GT-Freak]

You can grind it down to slightly above flush with the base metal. This actually relieves stress risers.

Dremel with grinding stone is fine; however, it'll use up the stone. Angle grinder is better, but is tough in small areas. Files also work good (coarse flat bastard or square file).

 

[DieConeDie]

Yeah, those ugly blobs kinda counter the theory of a better flowing peice of pipe...

I have some big ugly rasps and a few dremel stones that are ready to be spent anyways.

 

[bear]

For getting the excess weld material from inside the pipe, I would suggest a file first, preferably a round one, then finish it off with the Dremel for a nice smooth contour. Just a little bit of raised material will make the pipe really hard to slide another pipe into it, if that's the way you're going.

Ron

 

[DieConeDie]

It fits OK, It just has nasty drips... honestly I dont see how a welder could possibly let something like that be. but hey, it was free, and its the size I need!