Oil canning

[btroy]

I am working on quater panels on a GTO.

I have like 3 oil can spots. Anyway to remove these?

Meaning I can push in lightly and it stays in. I can get behind it and push lightly and it pops out.

Thanks

Troy

[btroy]

Sorry forgot to search forums.......

[cruzindablvd]

Hi....what you wanna do is get a torch setup. Make lil circles around the edge of the oil can area till they turn blue. Now hit it a wet rag or a water bottle or something. This will tighten the metal back.

[Phil V]

Btroy, 99% of the time you won't need to shrink the metal associated with an oil can effect in the metal. Push the metal out from the back side. While the metal is out feel carefully all the way around the affected area. You will for sure find one or two high spots. Usually just above and/or just below the part that pops back in. With the metal popped out carefully tap down those high spots with a hammer. What you're doing is restoring surface tension by tapping down the high spot back to where it belongs, level witht he rest of the surrounding metal. I guarantee you that will cure your metal oil canning problem. Of course the rules change if the metal area you are working was severley damaged/stretched and you have most of the metal pulled out but some stretched areas are oil canning. In that case you will need the torch to heat shrink the metal.

[Len]

I agree with Phil and also if there is a peak nearby you can use a block or a board to tap the peak toward the flexing metal to help strengthen it and make the metal more rigid.

[anml726]

I've seen guys in one of my body classes use a Unispotter without a stud in it to heat the metal up the same as a torch. He actually got the metal wet first, probably not a great idea, then put the stud gun on the metal like he was going to tack a stud on, but there was no stud in the gun so it just ran an arc through the metal leaving tiny little blue spots, after each time he'd run a wet rag over the spot to cool it. Just a thought.

[Len]

Yes, the stud gun works great for shrinking, you don't even need to wet anything after it's heated. Wetting the metal before you hit it with the welder sounds like a DANGER:eek:US idea to me. When you shrink with the stud gun you should use a "shrink tip" like the one below.


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