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10-30-2009, 07:53 PM
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#1
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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oil pan dent
Ok so today I was jacking my car up to fix a tranny leak and as I was jacking the car up the jack slipped. I bent my center link up into the oil pan. The center link is shot and I have a nice dent under the front of my oil pan. Has any tried one of those stud welders to pull dents out of an oil pan with out pulling the oil pan off. My oil pan is galvanized steel. I tried using the stud welder but just cant get the studs to stick good. I cleaned any oil off the pan and even sanded of the some of the coating. I dont now why it wont work. There is still oil in the pan, so I dont know if that causing a problem with the stud gun. If I dont get the dent out It looks like I will have to pull the pan off and that is going to be a huge PITA. Any suggestions.
Last edited by Fast92RS; 10-30-2009 at 08:39 PM.
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10-30-2009, 10:20 PM
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#2
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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galvanized won't take weld even when you sand it. you need to nuetralize the galv.
take a cloth/rag with vinegar on it and wipe the area you are try to weld real good. then wipe with dry cloth/rag.that will remove the galvanization and make it able to be welded.
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10-30-2009, 11:19 PM
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#3
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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thanks I will try that.
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10-31-2009, 12:04 AM
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#4
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Join Date: Apr 2006
Location: Point Pleasant
Posts: 1,809
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Quote:
Originally Posted by S.J.SLEEPER
galvanized won't take weld even when you sand it. you need to nuetralize the galv.
take a cloth/rag with vinegar on it and wipe the area you are try to weld real good. then wipe with dry cloth/rag.that will remove the galvanization and make it able to be welded.
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Thats good to know. Never new that trick.!
__________________
-Vinnie
94 2wd SBSC Gmt400. 330CI LSX, Fast 102, Trickflow 205s, close ratio nv3500, 4.30/trutrac.
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10-31-2009, 08:44 AM
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#5
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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its a old timers trick.
my sicilian father-in-law showed me that trick about 10 years ago when i built a huge work bench and used galv steel top. i needed to weld the seams and couldn't, so he showed me that trick.
i just don't know if there is a certain vinegar (apple,wine,distilled etc...) to use. i think vinegar is vinegar
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10-31-2009, 08:46 AM
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#6
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Join Date: Jun 2007
Location: Arm pit of the world... NJ
Posts: 2,676
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Quote:
Originally Posted by S.J.SLEEPER
galvanized won't take weld even when you sand it. you need to nuetralize the galv.
take a cloth/rag with vinegar on it and wipe the area you are try to weld real good. then wipe with dry cloth/rag.that will remove the galvanization and make it able to be welded.
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Really? I've never had a problem welding galvanized steel and I've never "neutralized" it.
__________________
John
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10-31-2009, 09:33 AM
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#7
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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Technically you really are not suppose to weld galvanized. There is a toxic gas that is realesed from the gavanized coating when welding it. That what that white film is that come off of it. I am going to try the vinegar trick next week.
Last edited by Fast92RS; 10-31-2009 at 09:33 AM.
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10-31-2009, 03:41 PM
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#8
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10 Second Club / Meet Coordinator
Join Date: Dec 2004
Location: Roxbury, NJ
Posts: 2,111
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i had that same accident before, ended up replacing the oil pan with a new one. sucked. i've never even thought about jacking up the car from there since, always from the sides now
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1987 IROC-Z - modified
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11-09-2009, 08:45 AM
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#9
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Featherburner
Really? I've never had a problem welding galvanized steel and I've never "neutralized" it.
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Same here.
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11-09-2009, 11:14 AM
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#10
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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Quote:
Originally Posted by 87IROCmadman
i had that same accident before, ended up replacing the oil pan with a new one. sucked. i've never even thought about jacking up the car from there since, always from the sides now
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yeah thats what Im going to do from now on.
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11-09-2009, 09:46 PM
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#11
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Join Date: Sep 2004
Location: Haledon, NJ
Posts: 5,162
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I had something similar happen to me over the summer only more towards the back of the pan is dented up. The wood I was using split between the k-member and the jack and the jack slipped.....never again.
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1989 IROC-Z 355 LT1 T56 Swapped
2016 Chevy Colorado LT 3.6 v6
2008 Jeep Grand Cherokee Laredo 4.7L RIP 12/29/2016
1998 Honda CBR 600F3
2003 Yamaha FX140
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11-24-2009, 06:12 PM
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#12
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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Well I fixed it today. What a pain. It was really hard pulling the dent because the metal was so thick. Its not pretty but it works and no leaks. I guess I will have to replace the pan down the road.
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11-24-2009, 10:09 PM
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#13
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Join Date: Nov 2009
Posts: 201
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did you used distilled vinegar? Technically the chemical properties of distilled vinegar is better to clean/strip what you need off the galvanized metal so that is what you should use. Thats the chemist in me talking though...
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78 Trans Am--Pontiac 400-custom headers-pypes 2.5 X system-edelbrock intake and carb, pro comp roller rockers custom brackets-head work-custom sound system - recaro interior
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11-25-2009, 04:57 AM
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#14
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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Quote:
Originally Posted by andy78TA
did you used distilled vinegar? Technically the chemical properties of distilled vinegar is better to clean/strip what you need off the galvanized metal so that is what you should use. Thats the chemist in me talking though...
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Yes I did. It worked somewhat. The studs stuck better but were not strong enough to pull the dent. So I had to put an extra tack on each stud to add a little more strenght to pull the dent.
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