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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2007 Posts: 9 New Guy | | New Guy Joined: Oct 2007 Posts: 9 | My oil pan has a pinhole leak in it. Has anyone had good long-term results with JB weld? I would just spot it with the mig, but Im having trouble finding it now that the oil is out of the pan. I thought I would just clean it up real good and coat the entire area with layer of JB. Any thoughts?
She may not always start, and She may not always get me where Im going, but goddamnit, she will always stop.
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | If you get the oil away from the leak & allow it to set up for 12 hours or more it will work. I've rinsed them out real good & get plenty of ventilation & brazed them but it's scary.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Sep 2006 Posts: 841 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 841 | my mom had a crappy low sittin dodge car that would bump the oil pan periodicly when she came up the drive. one day she knocked a hole in it. a old time shadetree guy came over and put a drop light on the hole overnight and brazed it the next day. scary is right, i wouldn't be afraid of blowing up but setting it on fire. | | | | | Joined: Oct 2005 Posts: 738 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 738 | Uh....I once used JB Weld to patch a quarter sized hole in the oil pan of my friends eclipse. Worked great for years and still did when he sold the car. I drained his oil, dropped the pan, degreased it and cleaned the hole really well. I mixed up the JB Weld, put it on and let it dry for a couple hours then i put on one more layer and let it dry inside for a day. I put it back on the car, and added oil. Presto Changeo it worked just fine.
Kyle
"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." - George S. Patton My Machine | | | | | Joined: Mar 2006 Posts: 1,703 Shop Shark | | Shop Shark Joined: Mar 2006 Posts: 1,703 | yrs back I had a small Mustang gas tank on my HD ...durin a long ride the bolts vibrated loose ...GO FIGURE..lol an proceeded to rub a hole in the bottom against a stud in the head.
well i drained the tank shined up the effected area made a small patch to cover the area ...an glued it on with JB ...let it dry over nite put a second coat on around the edge of the patch ....let it dry overnite an put it back in service an ran it for 8 yrs ...never leaked a bit !...tank is now on a freinds Triumph chopper an still NO LEAKES.. | | | | | Joined: Apr 2005 Posts: 1,971 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,971 | A patch on the oil pan should be as sturdy as your confidence that you will not have to worry about it again. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | What's wrong with welding it?
Find the hole and fix it right the first time.
I understand taking the easy way out every now and then, but this is a simple one to fix correctly, and important too.
Grigg | | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | if you cant weld it, at least braze it. Either way, pan has to come out to do the job correctly.
JB weld works great for patching overflow tanks, plastic parts, and filling in on welded patch jobs. I have used it to reinforce body parts, trim parts, the broken remote to the TV, etc, however to keep the life-blood of an engine in tact scares the poop out of me.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
| | | | | Joined: Oct 2007 Posts: 9 New Guy | | New Guy Joined: Oct 2007 Posts: 9 | All the purists will be happy to know I eventually did take out the pan and braze over the whole area... After I set the transmission on fire trying to do it on the vehicle.
At least my transmission is clean now.... And my leak is gone.
Thanks Everyone!
She may not always start, and She may not always get me where Im going, but goddamnit, she will always stop.
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Shane, A clean tranny and a dry oil pan...what else could a person want.  Stuart | | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | LOL, BTDT with a newly put together Truck a few years ago after the meeting of deep oil pan, too low of springs and a high RR track. Fire was big enough to make me pull the engine to repaint
FYI - I am about a half hour to the east of you. 10 to 57 to Z. If you are in the area, stop on buy, usually have a bottle or two of Liquid BS enhancer.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
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