How to extricate original exhaust tips from old rusty muffler ends? 70-72

[Mike E.]

I have some original chromed steel exhaust tips (NOT stainless) still connected to the old muffler outlet pipes. Before I destroy them with an inadequate technique, I'll ask here. Who has successfully removed these exhaust tips, and how did you do that?
Thanks!

[Harry S.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

I have some original chromed steel exhaust tips (NOT stainless) still connected to the old muffler outlet pipes. Before I destroy them with an inadequate technique, I'll ask here. Who has successfully removed these exhaust tips, and how did you do that?
Thanks!

Soak them in Evapo-Rust for a few days. It make rust disappear and doesn't affect anything else.

[Mike E.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Soak them in Evapo-Rust for a few days. It make rust disappear and doesn't affect anything else.

Thanks, Harry. But how does that get the tip off the old pipe? I know that would help dissolve the rust bond, but how do I undo the fact they have been clamped together for many decades?
Mike

[Harry S.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Thanks, Harry. But how does that get the tip off the old pipe? I know that would help dissolve the rust bond, but how do I undo the fact they have been clamped together for many decades?
Mike

When all the old rust is gone, the space the rust occupied will be free. The pipe maybe pulled out easily. If the clamp was tightened too much then the pipe will need to be cut out of the chrome tip. Use a Dremel with a metal grinding disc.

Go slow, I just spent 5 hours polishing the fine scratches out of one of my vent windows. Better than shoveling snow!

[E B.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Mike, how about heat, a good torch on the inside sleeve will free it if enough pipe to grab and pull it out. Ed

[Patrick B.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

If you cut the muffler spout off flush with the exhaust tip, then cut through the rusted in spout pipe from the inside, you should be able to peel the spout pipe out.

[Keith W.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Would PB Blaster help?

[Bob D.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

I have had luck soaking them with Kroil Oil. Squirt the oil around the edges where the two parts meet and just keep soaking until the oil penetrates enough to loosen the parts.

Bob

[Edward J.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

I think what happens after the factory clamps the pipes or tips in this case the clamping has clasped the tip and pipe and removing will likely not be removed with any penetrating oil rust remover, I think sadly heating the clamped area with a torch is about the only way. Good luck Mike.

[Bob J.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Mike, are you trying to safe the mufflers and the tips or just the tips? Bob

[Mike E.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Mike, are you trying to safe the mufflers and the tips or just the tips? Bob

Just the tips. Mufflers are late-70's Midas. With holes.

[Bob B.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

CAREFUL with those tips- real original '70 exhaust tips are just about impossible to find, and IF you can find the correct ones they are VERY expensive IF the seller knows what he has. There are tons of repos and later tips being advertised as '70's- but if you read the Judging Guide carefully you will look for a VERY long time. A guy used to do a very good repo but I think he even quit, and he charged over $1,000 a set. , I looked for over 2 years, I have a pile of junk passed off as original 70's and "correct repos-
The '70 Vettes, like so many others are getting crazy expensive to restore properly..

[Bob J.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Just the tips. Mufflers are late-70's Midas. With holes.

I would cut the tips off the mufflers with an inch of the outlet pipe showing past the tip.
Then I'd take a cut-off wheel or dremel and slit the outlet pipe inline and all the way up into the slits on the tip.
After that, I'd take a hacksaw blade and continue the cut through tip slit on the inside pipe that's inside the tip.
Put the tip in a vise, well protected with wood and a towel on each side, so you don't deform the tip your saving during the next step.
Grab the outlet pipe with a large pair of pliers and roll the the pipe that you slit in a turning motion like opening a spam can. As you turn if the pipe wraps around the pliers you can grab the pipe closer to where it's still touching tip for better leverage.If one slit is extremely tight move to the next slit to see if it rolls easier. Once one section between slits is removed it should make the next easier.
I helped a guy do this on one frozen 69 tip.
Worth a try if the chemicals don't work.
Good luck, Bob J

[Mike E.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

CAREFUL with those tips- real original '70 exhaust tips are just about impossible to find, and IF you can find the correct ones they are VERY expensive IF the seller knows what he has. There are tons of repos and later tips being advertised as '70's- but if you read the Judging Guide carefully you will look for a VERY long time. A guy used to do a very good repo but I think he even quit, and he charged over $1,000 a set. , I looked for over 2 years, I have a pile of junk passed off as original 70's and "correct repos-
The '70 Vettes, like so many others are getting crazy expensive to restore properly..

[Ralph S.]

Re: How to extricate original exhaust tips from old rusty muffler ends? 70-72

Be careful with torch heat you will discolor the chrome