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Message started by Tiefighterpilot on 05/24/10 at 17:30:49

Title: JB Weld
Post by Tiefighterpilot on 05/24/10 at 17:30:49

Anyone have experience with JB Weld? Is it strong enough for motorcycle work?

Thanks in advance.

Title: Re: JB Weld
Post by prechermike on 05/24/10 at 18:03:11

I think it depends on what you are doing with it.

I once fixed a hole in my ATV's exhaust, put a piece of screen in the hole, JB welded it up and it is still holding a couple of years later.

Someone tried it up in the head, maybe to repair the cam guides, I can't remember. That didn't work.

So, I don't know. It depends on what you are trying to accomplish.

Title: Re: JB Weld
Post by Routy on 05/24/10 at 18:27:31

I used it to fix a broken plastic gas tank on a B&S lawn mower that fell off a pickup, and it was and still is like new.

You can fill a hole, and drill it, and tap it, but anymore than a snug wrenching, it will pull out.

Like was said, depends.

Title: Re: JB Weld
Post by Rogue_Cheddar on 05/24/10 at 18:37:26

I'm using it for the front pulley. Third and last pulley. The shaft got worn a bit much before I discovered it. No matter how much I torqued that sucker down it would not stay tight. Anyhoo, after I replaced the seal behind a new pulley, I used the JB weld. It's been 8,000 + miles and it's still holding.

Title: Re: JB Weld
Post by Chief Gunner on 05/24/10 at 18:46:31

I've got it in several places on my bike. I'm also the goofy bastard that used it in the head. :o I had grooves in the camshaft bearing surfaces, I used it to smooth out the surfaces. I got 1000 miles on it, but the combination of friction and oil pretty much wiped it out. I'd say it had more to do with the friction part. Use it to patch holes, repair threads (fill, drill and tap, or smooth out dents and dings, but I wouldn't recommend it for any friction points. Leave that for professional welding rods.

It does handle heat well, but does not conduct electricity so don't use it to repair any electrical connections. Found that out the hard way on a ground connection.. >:( as my wife says, should have read the directions!!

Title: Re: JB Weld
Post by Paladin. on 05/24/10 at 19:12:38

The Camaro radiator, 36.564457,-118.127934 (Tuttle Creek Campground.)
JB Weld held the seam, had about two years be for the rust.
Wendy was in the Radio Advertisement and her Husband.

Title: Re: JB Weld
Post by Gort on 05/24/10 at 19:43:08

JB Weld epoxy has temperature limitations and can be easily removed with a propane soldering torch. It just turns into a chunky dust after a minute or so. Also, repeated heating and cooling eventually cause it to lose its bond and come apart. Never use it on anything your life depends on. The rule of thumb for any over the counter epoxy is don't trust the bond for more than a year. It may well last longer than that, but often doesn't for a whole variety of reasons from incorrect mixing of proportions, to variances in temperatures and vibrations the epoxy repair may be subjected to.

Title: Re: JB Weld
Post by Tiefighterpilot on 05/24/10 at 21:33:54

Thanks for the advices. I really appreciate it.

Title: Re: JB Weld
Post by prechermike on 05/25/10 at 02:58:56

5A676B686769667A6B7C7E6762617A0E0 wrote:

Anyone have experience with JB Weld? Is it strong enough for motorcycle work?

Thanks in advance.

Curious, what did you want to fix with it?

Title: Re: JB Weld
Post by Rocco on 05/25/10 at 07:35:11

a good friend of mine has a chopper that the rubber tank mounts weren't big enough and the tank cracked, so he drained the tank and worked jb in there and hasn't had a problem ever since!

i just use radiator hose clamps :o

Title: Re: JB Weld
Post by justin_o_guy2 on 05/25/10 at 09:22:59

When I was a mechanic at Western Company I repaired a seal surface in a frac pump. We needed one more pump on a job & that seal had leaked on the last job & that high pressure water washed the steel out enough that a new seal wouldnt hold water at zero pressure. I told the boss I could make it seal, but had no idea if it would last rfor the job, but it did it, pumping at pressures suficient to pump sand & crap into a formation & fracture it to allow the oil to migrate to the wellbore more quickly. Naturally, they pulled the fluid end & shipped it off for repair after the job, so how long it would have lasted wasnt ever known.
Some places tho, JB weld is a total bust.