JB Weld can fix anything!

I just used J.B. Weld to fix a sperm with a broken tail. (see below.)

The community college I work for runs far fewer classes during the summer, so I've we've been using some of our time to repair things in the science labs. One of the anatomy labs has a whole bunch of models that were broken by students. One of these was a model of a sperm cell.

The students had broken the tail, which had a wire core surrounded by plastic. The plastic was missing from each end of the break, but the central wire was still present. We were able to superglue the wire back together, but there was still a chunk of plastic missing from the area of the break.

I filled in the gap with JB Weld's "JB Stik" (epoxy putty). After sanding, covering in fiberglass, sanding again, and painting, the model looks fine.

What's the strangest thing you've ever fixed with J.B. Weld?

I've had to break into my own house after locking myself outside. I ended up somehow breaking the plastic frame of a window air conditioning unit which I then skillfully reattached with jb weld sans sanding, painting, caring, etc...

The turn-signal stalk on my Dakota snapped when it was only 2 years old (apparently it was common for that year). I JB Welded it back together until I could get it replaced.

A former co-worker who raced snowmobiles blew the side out of an engine case. They gathered up the pieces they could find, prolly 85% of the fragments. They mixed up several batches of JBweld in the course of putting the thing back together. The kicker was that part of the crankcase that needed to be sound for the 2 stroke to work, was made about 95% of JBweld. They built a cardboard and duct tape mold and formed the chunk of case of the stuff. And then won their class, and had to explain to the sponsor why the engine looked funky.

My friend J-B Welded the block on his Toyota truck. Seems a common problem that the water pump vane bores a hole through the block or manifold where it sits.

Never woulda guessed.

jb welded the pin back onto a belt buckle that looks like a BMX freewheel with chain wrapped around it, also used JB weld to hold my last cell phone together after it fell out of my pocket goofing off in a cement skatepark. The silliest automotive use was to cement the 2 pieces of my 95 corollas crank pulley back together when the rubber bushing shrunk over the years.

I made a front sight blade for a rifle out of JB Weld. Shaped it with a Leatherman file, blackened it with a Sharpie. Meant as a night-before-the-highpower-match fix, I used it for two years.

JB Weld and a vacuum cap to close off the return side of a mechanical fuel pump. Worked great.

My desk chair assembled with only JB Weld... not so much.

Broke the drive motor bracket on a small Lincoln mig machine. JB held for years.

I just used it to fix a toliet paper holder. The plastic spring loaded tube the roll is mounted on. One of the pins broke off so I glued if back on and then filled the that end with JB weld to reinforce it as the pin was hollow.

A lamp. The shade mount was broken. JBWelded it up and now it's fixed!

my ironman watch - the plastic tab that the spring clip mounts into to hold the strap on broke, so I made one from JB weld and used a finish nail in my drill to make a new hole. My watch has now outlasted 3 cars,4 jobs, and 2 relationships!

I think I posted this a while back in a different topic. The gear in the odometer of my E28 BMW broke a tooth. I already replaced this a couple of years ago but this time I didn't feel like spending the cash so this time I used JB Weld to mold a couple of teeth. I used the regular JB Weld, mixed it and put a small portion on the damaged area. Halfway dry, I started shaping the teeth and voila! Its been almost a year and it still works.

racinginc215 wrote: Waterpump outlet on a 540 Rodeck. I broke the water pump bolt drilled it broke the easy out drilled it then it went off center shoved the hole full of JB weld "threaded a stud into it replaced the water pump and used that 540 for 2 more season in a drag car. Final failure of the Rodeck was when I tossed the rod through the side. water pump held.

This has me thinking. I messed up three exhaust manifold holes in a aluminum head trying to get a broken stud out. Would JB Weld tolerate heat cycles at all? If I fill the holes and thread in studs would it last?

signed, " Too cheap to take it to a machinist"