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Re: Top of fender "oil canning" fix? (with video)
[Re: JerseyJoe]
#1432051
05/08/13 12:08 AM
05/08/13 12:08 AM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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If your skilled at heat shrinking go for it, otherwise you may make it worse, other alternatives are a shrinking hammer/ pic/dolly, or remove the fender, remove any undercoating from the affected underside and gently glass bead/sandblast the underside of the top skin, sandbasting a panel raises the surface, by blasting the backside you'll basically collapse the the outer skin surface, making it concave as you desire...I've used all these techniques to perform bodywork, as well as fabricate reproduction/custom alloy parts 
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Re: Top of fender "oil canning" fix? (with video)
[Re: JerseyJoe]
#1432053
05/09/13 12:52 AM
05/09/13 12:52 AM
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Joined: Aug 2006
Posts: 62
Montana
BeeTX
member
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member
Joined: Aug 2006
Posts: 62
Montana
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I'd think you could make it worse with sandblasting pretty easily. I've been trying to fix a spot on a hood like yours, without much luck so far. Have you ever looked at Metalmeet.com? Here's a section of their forum on shrinking techniques. You could ask there too. Fun to look through some of the metal work on there, amazing stuff. Little hard to find things at first, LOT of forum categories.
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Re: Top of fender "oil canning" fix? (with video)
[Re: BulletBob]
#1432055
05/09/13 01:43 AM
05/09/13 01:43 AM
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Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
herkamer
pro stock
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pro stock
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
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Learned in autobody school:
Oxyacetylene torch, swirl from outside to the center. You can almost watch it tighten up. Perhaps get a junkyard panel, dent it up and practice a few times before doing on something of value.
Matt
69 Dart Swinger 340
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Re: Top of fender "oil canning" fix? (with video)
[Re: herkamer]
#1432056
05/09/13 01:59 AM
05/09/13 01:59 AM
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Joined: Oct 2005
Posts: 6,048
Back home in PA
BulletBob
master
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master
Joined: Oct 2005
Posts: 6,048
Back home in PA
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Quote:
Learned in autobody school:
Oxyacetylene torch, swirl from outside to the center. You can almost watch it tighten up. Perhaps get a junkyard panel, dent it up and practice a few times before doing on something of value.
I've done it for 35 years or so now & I find a panel the same thickness & do a test just like stated above either blasting or heat with water & towel
Most of all it takes patience
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Re: Top of fender "oil canning" fix? (with video)
[Re: BulletBob]
#1432057
05/09/13 12:46 PM
05/09/13 12:46 PM
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Joined: Apr 2003
Posts: 12,235
Looking for a way out of Middl...
IMGTX
I Live Here
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I Live Here
Joined: Apr 2003
Posts: 12,235
Looking for a way out of Middl...
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Quote:
heat with water & towel
Most of all it takes patience
This is my method. Remember it will shrink more when it cools down so don't try to get it perfect while it's hot. I did this the first time. Looked perfect until it cooled down and then it was shrunk too much. LOL
Make sure there are no other problems first like a dent elsewhere on the fender covered in mud you don't see or a bent inner fender.
Shrink it a little at a time.
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Re: Top of fender "oil canning" fix? (with video)
[Re: IMGTX]
#1432058
05/10/13 01:47 PM
05/10/13 01:47 PM
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Joined: Jun 2003
Posts: 13,878
Willow Grove PA
71sat440
I Live Here
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I Live Here
Joined: Jun 2003
Posts: 13,878
Willow Grove PA
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Quote:
Quote:
heat with water & towel
Most of all it takes patience
This is my method. Remember it will shrink more when it cools down so don't try to get it perfect while it's hot. I did this the first time. Looked perfect until it cooled down and then it was shrunk too much. LOL
Make sure there are no other problems first like a dent elsewhere on the fender covered in mud you don't see or a bent inner fender.
Shrink it a little at a time.
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Re: Top of fender "oil canning" fix? (with video)
[Re: IMGTX]
#1432059
05/10/13 02:07 PM
05/10/13 02:07 PM
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Joined: Jan 2003
Posts: 3,831
N.E. Ohio
6bblFLASH
master
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master
Joined: Jan 2003
Posts: 3,831
N.E. Ohio
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As stated,maked sure it isn`t "bound" or compressed. I would first try using a block of wood and a pretty heavy hammer,, from inside the fender at the corners beside the "can" try spreading the corners away from each other. DO IT GENTLY to see if it makes any difference at all. By spreading the panel it will use up the stretch that is causing the buckle. You can take a buckle out of anything by stretching it 
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
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