JB Weld....

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ragtopfury

ragtopfury

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It's not just for side of the road radiator tank repair, fuel tank and oil pan leak fixes.... the blade finally came out of the handle of our favorite Pampered Chef spatula..... Problem solved.
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Yup. JB is great stuff. Back in the day I was dead broke and had a Ford inline six with a cracked block. I wirebrushed the crack, sanded off the paint and slobbered JB all over it. I drove it that way for a couple of years before selling the car.
 
Not to be Debbie downer but as a welder I hate that stuff. I cannot begin to tell you the amount of botched repairs ended up on my bench as a result of guys trying to evade repair costs and using it. It took me longer to get the JB weld material cleaned off than it did to do the actual repair. I would always hand them the part back and explain I could have done it in half the time if they had not contaminated the area with JB weld. Usually Aluminum or magnesium parts, chainsaws, canoes, radiators etc. That being said I also recognize it has a place and a application profile.
 
In the early 80’s I worked for a parts store/machine shop that used to repair cracks in model T (and model A?) blocks with JB Weld. They always “dressed” and stress relieved the area, as well as getting the owners approval before doing so. Worked great, and as far as I know those engines are still running just fine.
 
A lot of folks think JB is good for repairs around gas, but it's not. It is not impervious to gas, I don't care what the label says, or some old fart that's "been doin it for sixty years". It does NOT hold up to gas.
 
If they ever make that stuff where it can be drilled and tapped to accept bolts it would be really great... :lol: :thumbsup:

I once saw a feller patch a rusted through oil pan on a Ford F 150 with JB weld.
 
Dartswinger70 said:
I once saw a feller patch a rusted through oil pan on a Ford F 150 with JB weld.
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The 03 Dakota that we picked up for Josh had an oil leak when parked facing down hill. I thought the front of the pan gasket was leaking. Turned out to be a rusted pin hole in the font of the pan. Yup - we parked it up hill, cleaned the area and JB'd that thing. Never even took the pan off. 2 years ago. Still holding.
 
ragtopfury said:
The 03 Dakota that we picked up for Josh had an oil leak when parked facing down hill. I thought the front of the pan gasket was leaking. Turned out to be a rusted pin hole in the font of the pan. Yup - we parked it up hill, cleaned the area and JB'd that thing. Never even took the pan off. 2 years ago. Still holding.
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Oh yeah definitely good for those type repairs etc.
 
ragtopfury said:
The 03 Dakota that we picked up for Josh had an oil leak when parked facing down hill. I thought the front of the pan gasket was leaking. Turned out to be a rusted pin hole in the font of the pan. Yup - we parked it up hill, cleaned the area and JB'd that thing. Never even took the pan off. 2 years ago. Still holding.
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Just reminded me....

My father bought a new (used) aluminum fishing boat 20 (?) years ago from a guy whose son "beached it" on some rocks on Mille Lacs and dinged-up the keel enough that it sprung some small leaks. He (the seller) tried everything he could think of to plug the leaks (silicone, etc), but since he never got it sealed-up, dad got the boat (a nice boat!) for a song.

And then dad tried fixing the leak, but no joy.

Dad didn't want to pay someone to weld on the boat, so one weekend we filled the boat with water (to find the leaks), marked the locations, and dried everything out overnight. Next day we lightly scuffed and ground-down the keel area and applied two thin coats of JB Weld.....

Boats sits in the water, tied-up to the dock, all summer long, and to this day those keel leaks are as dry as can be.
 
I used it to patch a rusted through oil
Pan on my wife’s old Gran Prix. No way was I going to try to get the pan off that thing. It worked great and was still going strong when we sold it.
 
Sublime one said:
Not to be Debbie downer but as a welder I hate that stuff. I cannot begin to tell you the amount of botched repairs ended up on my bench as a result of guys trying to evade repair costs and using it. It took me longer to get the JB weld material cleaned off than it did to do the actual repair. I would always hand them the part back and explain I could have done it in half the time if they had not contaminated the area with JB weld. Usually Aluminum or magnesium parts, chainsaws, canoes, radiators etc. That being said I also recognize it has a place and an application profile.
Click to expand...
LOL. A number of years of ago we had to JB weld a crack in a steel insert in an injection mold for a few more hours of run time. Surprisingly, it held up great. Insert was brought to the mold shop and said it would be ready the next day. I drove over to pick it up and the welder, who I have known for years, said:”Who’s the asshole that put the JB Weld on that insert?”
 
One time in the middle of Kansas at a meat processing plant, we had to repair an old Vilter piston-type ammonia compressor that had a stripped out head bolt. The head was a "flat-head" type like on an old Ford flat-head V8. The threads were stripped out in the block. This hole was a 15/16" hole, wrench size was 1 1/4".

We completely drilled out all of the old threads, filled the hole with JB Weld, re-drilled the hole, tapped in the new threads, and re-installed and torqued the head.

That old compressor started right up, held the pressure, and worked just fine.
 
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