Oil pan cracked on a weld there any easy fix?
#1665976
08/31/14 10:07 PM
08/31/14 10:07 PM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
OP
super stock
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OP
super stock
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Posts: 1,178
Indy
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I was going into rd 4 at the track last night and the starting line crew had me shut the car down due to a leak (thank goodness they were on the ball).
Just like the title said, is there an easy way to fix a crack on an oil pan ( on a weld). It is a Milodon 7 quart low profile pan. I realize that I will more than likely have to pull the motor and replace the pan....but I thought I would ask.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Oil pan cracked on a weld there any easy fix?
[Re: MR_P_BODY]
#1665978
08/31/14 10:40 PM
08/31/14 10:40 PM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
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Is that possible to do in the car, or would I still have to pull the pan? It's an aluminum pan, so I would have to borrow the equipment to weld aluminum.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Oil pan cracked on a weld there any easy fix?
[Re: FlyFish]
#1665979
08/31/14 10:54 PM
08/31/14 10:54 PM
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Joined: Apr 2003
Posts: 1,627
anywhere@ anytime
actionange
top fuel
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top fuel
Joined: Apr 2003
Posts: 1,627
anywhere@ anytime
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Drain the oil, clean cracked area really good, mix up a batch of JB Weld, apply to crack. Dries hard and will last forever. Don't ask me how I know...haha 
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Re: Oil pan cracked on a weld there any easy fix?
[Re: FlyFish]
#1665980
08/31/14 11:04 PM
08/31/14 11:04 PM
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Joined: Apr 2005
Posts: 1,505
TN
SCATPACK 1
pro stock
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pro stock
Joined: Apr 2005
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TN
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had that hapen at a IHRA race once. The weld just slpit while warmng up in the pit.We drained the oil and then used carb cleaner to clean the pab of oil and used duct tape (200 MPH tape) to tape over the split. worked for the whole weekend and never leaked a drop.
Old Geezer Racing
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Re: Oil pan cracked on a weld there any easy fix?
[Re: FlyFish]
#1665981
08/31/14 11:16 PM
08/31/14 11:16 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Is that possible to do in the car, or would I still have to pull the pan? It's an aluminum pan, so I would have to borrow the equipment to weld aluminum.
I've welded mine and a few others on the car.. if
you can get to the crack you can weld it if you know
how to tig.. what I do is pull 1 pan bolt and mount
a grounding tab on that bolt so the ground is right
there, you dont want the ground going into the engine
(like if you were to use something farther away..
it COULD hurt something) but it wont with the ground
on the pan
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Re: Oil pan cracked on a weld there any easy fix?
[Re: MR_P_BODY]
#1665982
08/31/14 11:59 PM
08/31/14 11:59 PM
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Joined: Dec 2006
Posts: 2,109
Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,109
Byron, NY
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Quote:
I've welded mine and a few others on the car.. if
you can get to the crack you can weld it if you know
how to tig.. what I do is pull 1 pan bolt and mount
a grounding tab on that bolt so the ground is right
there, you dont want the ground going into the engine
(like if you were to use something farther away..
it COULD hurt something) but it wont with the ground
on the pan
Luck has been on your side...I know of more that one instance where Valve covers/Pans have been ballooned when trying something similar 
Pull the pan off the engine and clean the area to be welded and weld it up better safe than sorry
'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60
'01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust,
'05 Dodge Magnum R/T - Too Much to list
'60 Willys CJ5
'01 International LPX - Project,DT466, Allison
'64 Plymouth Valiant, Inj 528 Hemi, 2spd
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Re: Oil pan cracked on a weld there any easy fix?
[Re: W.I.N. Racing]
#1665983
09/01/14 12:50 AM
09/01/14 12:50 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
I've welded mine and a few others on the car.. if
you can get to the crack you can weld it if you know
how to tig.. what I do is pull 1 pan bolt and mount
a grounding tab on that bolt so the ground is right
there, you dont want the ground going into the engine
(like if you were to use something farther away..
it COULD hurt something) but it wont with the ground
on the pan
Luck has been on your side...I know of more that one instance where Valve covers/Pans have been ballooned when trying something similar
Pull the pan off the engine and clean the area to be welded and weld it up better safe than sorry
If your concerned, blow air in the valve cover beather
with a open drain plug... doesnt take much air
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Re: Oil pan cracked on a weld there any easy fix?
[Re: actionange]
#1665984
09/01/14 03:53 AM
09/01/14 03:53 AM
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Joined: Dec 2006
Posts: 4,647
aotearoa
rebel
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master
Joined: Dec 2006
Posts: 4,647
aotearoa
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Quote:
Drain the oil, clean cracked area really good, mix up a batch of JB Weld, apply to crack.
Dries hard and will last forever.
Don't ask me how I know...haha
 after a hell wheelstand we cracked a weld on the pan. JB Weld repair in the pits with a bit of tape over it & it lasted til rebuild time at the end of the season.
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Re: Oil pan cracked on a weld there any easy fix?
[Re: rebel]
#1665985
09/01/14 10:35 AM
09/01/14 10:35 AM
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Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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Tig welding aluminum is fairly simple. Some complex welders are better at cleaning. My welder is just a square wave tig and does not have the wave tuning options. Therefore the inside of the pan needs to be clean also.
Done this before. Drain the oil. If the crack is large enough spray solvent into the crack. Acetone is best. Leave the plug out and remove breathers or even the valve covers so the engine can vent. If everything is clean, easy breazy.
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Oil pan cracked on a weld there any easy fix?
[Re: Leon441]
#1665986
09/01/14 10:53 AM
09/01/14 10:53 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Tig welding aluminum is fairly simple. Some complex welders are better at cleaning. My welder is just a square wave tig and does not have the wave tuning options. Therefore the inside of the pan needs to be clean also.
Done this before. Drain the oil. If the crack is large enough spray solvent into the crack. Acetone is best. Leave the plug out and remove breathers or even the valve covers so the engine can vent. If everything is clean, easy breazy.
Welding alum is always about the cleaning of it..
I use sprays to clean the oil(brake cleaner) but on
the surface that will see the bead I hit with a stainless
steel wire brush(has to be stainless)
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Re: Oil pan cracked on a weld there any easy fix?
[Re: MR_P_BODY]
#1665987
09/01/14 12:07 PM
09/01/14 12:07 PM
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Joined: Feb 2005
Posts: 20,170
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,170
PA.
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Take time to read some of these before using brake cleaners and welding. That stuff will kill you. https://www.google.com/search?q=brake+cl...&channel=sb
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Oil pan cracked on a weld there any easy fix?
[Re: pittsburghracer]
#1665988
09/01/14 12:15 PM
09/01/14 12:15 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Take time to read some of these before using brake cleaners and welding. That stuff will kill you.
https://www.google.com/search?q=brake+cl...&channel=sb
If I do use it I do give it plenty of time to purge
it with air flow... being that I worked in the fuel lab
I did a ton of welding on tanks and know all about
the boom(or the lack of it).. in the lab we
had to be super careful... we didnt want to get hurt
or have the feds/state in there
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Re: Oil pan cracked on a weld there any easy fix?
[Re: MR_P_BODY]
#1665989
09/01/14 12:36 PM
09/01/14 12:36 PM
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Joined: Aug 2005
Posts: 6,003
Salem
Grizzly
Moparts Proctologist
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Moparts Proctologist
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Posts: 6,003
Salem
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Don't have it welded on the car.
Even with the ground clamp as close to the weld as possible I wouldn't take any chances of having an arc finding its' way through your bearings or anything else with close tolerances.
It's just bolts to get it out of there and on a welding table where you can see what you are doing and it can be cleaned/prepped properly. Since it's a weld that failed it's all going to have to be v'd out and done right. An experienced welder should be able to do this for probably 50 to 100 dollars. Something to keep that in mind vs the cost of just buying a new pan.
Mo' Farts
Moderated by "tbagger".
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Re: Oil pan cracked on a weld there any easy fix?
[Re: Grizzly]
#1665990
09/01/14 01:45 PM
09/01/14 01:45 PM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
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Indy
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I don't know what I was thinking, the pan is steel, and that I can weld. I'll probably just pull it and weld it. Thanks guys.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Oil pan cracked on a weld there any easy fix?
[Re: FlyFish]
#1665992
09/01/14 11:56 PM
09/01/14 11:56 PM
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Joined: Aug 2005
Posts: 6,003
Salem
Grizzly
Moparts Proctologist
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Moparts Proctologist
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Posts: 6,003
Salem
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Flyfish, get a good look at the rest of the welds while you have it off. For that weld to have cracked tells me Milodon didn't QA/QC your pan very well. It will save you pulling it off and doing it again if another sloppy weld gives somewhere else.
Mo' Farts
Moderated by "tbagger".
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Re: Oil pan cracked on a weld there any easy fix?
[Re: Grizzly]
#1665993
09/02/14 09:07 AM
09/02/14 09:07 AM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
OP
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Indy
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Quote:
Flyfish, get a good look at the rest of the welds while you have it off. For that weld to have cracked tells me Milodon didn't QA/QC your pan very well.
It will save you pulling it off and doing it again if another sloppy weld gives somewhere else.
Thanks, I'll definitely check the others while I'm there. I don't think this is a Milodon issue though, I'm pretty sure it is something I did...years ago when I put this pan on my car I had to reshape the passenger side of the pan with a hammer and torch to get proper header clearance. I'm not sure why it decided to fail now (13 years later), but it did.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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