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Cracked oil pan......weld?? or replace???

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Old Dec 29, 2014 | 01:30 PM
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Default Cracked oil pan......weld?? or replace???

Cracked oil pan......weld?? or replace???-20141223_184513.jpg

it's a small hair line crack that happened when I was torquing it down, I think the rear cover gasket it what did it but I'm still not to sure. Can I get it welded or should I just replace it, I've called some auto salvage yards and no one had one and I don't want to have to buy a new one for such a small crack. Does anyone have one to buy I got papal
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Old Dec 29, 2014 | 06:14 PM
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That could be TIG welded by someone who knows what they are doing but most of the time TIG welding isnt cheap.
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Old Dec 30, 2014 | 12:51 AM
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i would just replace it seeing how its off, if you weld it you will more than likely warp it and risk it not sealing and if you don't get all the crack out it will just come back. I am a welder btw not just some clown with 2 posts lol running my mouth

Last edited by Brianm; Dec 30, 2014 at 12:58 AM.
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Old Dec 30, 2014 | 01:48 AM
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If it were mine, would fill the crack w/ jb weld & then make a square washer that overlaps the crack (into the corner that's still part of the pan) so that it can then be properly secured to the block. Square washer that overlaps the crack into the corner will transfer the clamping force of the bolt, to the oil pan
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Old Dec 30, 2014 | 12:07 PM
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On the weld idea I was thinking about it warping and not sealing, the washer idea ain't bad....you think job weld would hold?? It's gonna have vibration, thats why I considered replacing it but they aren't cheap, it's a somewhat built motor and poly mounts.
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Old Dec 30, 2014 | 12:48 PM
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Originally Posted by Brianm
i would just replace it seeing how its off, if you weld it you will more than likely warp it and risk it not sealing and if you don't get all the crack out it will just come back. I am a welder btw not just some clown with 2 posts lol running my mouth
We know. .. you only have 1 post... lol JK

I had a Integra GSR in high school and it was lowered a lot... one day I bottomed out and cracked my oil pan. .maybe 8 inch.

My metals teacher who is also a major car buff .he drilled a hole on each end of the crack to stop it.and he welded it up for me, it lasted the whole time I had my car after that and I can remember bottoming it out after that too!

But he's a 70 yr old welder

I can specifically remember me doubting it would hold up bottoming out again. .but he was confident it would be stronger than the rest of the pan
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Old Dec 30, 2014 | 07:56 PM
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how much is a new pan?
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Old Dec 30, 2014 | 08:27 PM
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Well I guess they did't count my welcome wagon post . The thing is off the car fix it right and get a replacement. Then button her back up and forget about it .
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Old Dec 30, 2014 | 10:41 PM
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A new one is $230-$250
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Old Dec 30, 2014 | 11:38 PM
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Originally Posted by Kbodls1
the washer idea ain't bad....you think job weld would hold?? It's gonna have vibration, thats why I considered replacing it but they aren't cheap

Whether it holds or breaks is irrelevant in reference to it doing the job of sealing the corner. If it breaks, it will just act as a shim. The key is that there will be a clamping force on the corner that remains part of the pan.
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Old Jan 1, 2015 | 07:46 PM
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not sure where u live but theres a few for sale on craigslist richmond/norfolk area maybe check where u live as well.
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Old Jan 2, 2015 | 12:00 AM
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Post up in the WTB section. Maybe some swap guys have one laying around.
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Old Jan 2, 2015 | 12:34 AM
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Aluminium that is cracked & needs welding needs to be extremely clean, a sump that is soaked in oil with a crack that needs repair will need to be fitted to a 'block or something so it doesn't warp, but will most likely get oil soakage into the weld from the metal not being clean internally making the weld leak.
Buy a new sump, will be cheaper in the long run.
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Old Jan 2, 2015 | 11:43 AM
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Just bought a new for 250
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Old Jan 3, 2015 | 01:59 PM
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I weld/machine a lot of non replaceable cast aluminum manifolds and pans.

When I found the flange cracked on my fbody ls1 pan I just bought another.
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Old Jan 7, 2015 | 07:25 AM
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Ordered a new one just to be on the safe side 220 from summit
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Old Dec 26, 2015 | 09:08 AM
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I know this is an old thread but if any of you guys still have your cracked fbody oil pans I would like one for mock up purposes. Let me know if you still have'em. Thanks!
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Old Dec 27, 2015 | 06:23 AM
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Are the new Gm hot rod or muscle car Ls pans only 150$????
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Old Dec 27, 2015 | 07:14 AM
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yes, and they hang done way below the crossmember
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Old Dec 27, 2015 | 07:29 AM
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My bad.... I wasn't thinking specifically fbody....
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