A buddy of mine had corrosion on his thermostat cover near the neck area. Instead of purchasing a new one,he told me he bought a tube of JB Weld (epoxy) and applied it to the corrosed area. It hardened like a rock. He said it's been on the truck for 4 years and no more corrosion? The inside surface of the cover is very smooth now. Anyone else use this stuff?

 

I've used it at the track for emergency repairs and have also used it to repair heads that were ported a weeeeeeee bit too thin and got into the water jacket. As long as the surface is clean and it's mixed properly it's great stuff and it's cheap too!

 

i love jb weld, keep at least 2 kits around the house and 1 in the truck at all times. it fixes so much, and is almost as hard as steel.

 

I was wondering if the stuff is good with anti freeze or high temperatures (180-210). The stuff looks like an excellent coating for rough surfaces too. I saw the website and it stated the stuff repairs radiators, cracked blocks, etc. Sounds to good to be true!

 

Had an external crack in the block of my dad's 8N Ford tractor. Put some JB on it. Was still holding 15 yrs later when he traded it.

 

I fixed a Yamaha 2 stroke 100 piston with it. Ran long enough to get it sold even told the guy about it, he bought it anyway. The only time it didn't work well that I found was on the exhaust manifold on my 59 223 just under the carb. JB Weld stinks real bad when it cooks away.

 

I like it for wallowed out bolt holes. I fill em up, drill em out and retap. They work like new. John

 

It softens eventually on the presence of gasoline. But it is good stuff. I have seen a few scrapped engine blocks repaired with it.

I fixed a radiator with bondo when I was a kid and it lasted for years. But I think the Yamaha piston repair glue trick might just be more impressive Cobra guy.

 

The aluminum timing cover on my 68 Galaxie 302 corroded through a couple of weeks
ago and I decided to try JB Weld as I had replaced it before with a used one. The JB Weld is holding so far.

 

It will hold bearing races in front hubs...

 

About 10 years ago I developed a crack in the aluminum jet drive housing on my jet boat. I had a friend of mine who worked on jet drives tell me he could weld it up and the problem would be solved. Even though he was a friend this was is lively hood so he gave me a break and charged me a couple hundred dollars. Do you see where this is headed????
Well, the welding job looked pretty good. I made a trip to the Colorado river for a fun week. I launched the boat and took the family for the first ride of the day. About two hours into the day my wife tapped me on the shoulder and stated, " dear I thought you were going to get that leak fixed in the jet drive before our next trip". I zipped my lip, bit my lip and pulled the boat over a few minutes later to take a break. After an hour of so of cooling down my nerves I went back over to the boat that was know nossed into the shoreline. I started the engine and engauged the jet drive. The nice beautiful 200 dollar weld to include taking the housing out of the boat to fix was leaking like a cow ****ing on a flat rock. Once again I bit my lip because of minors and teens that were present. One of my firefighter friiends who new me quite well figured out that something was bothering me. He walked over handed me a silver bullet and asked what was wrong. I explained the situation and my current frustration to be polite.

He calmy stated well, let's go buy some JB weld. I new the stuff was good as I have repaired small items such as carberators and small brackets. I told him, that I didn't think it would work due to the extreme pressures that were exerted on the iinside housings. He just said , " what do you have to loose.
So, off to the auto parts store in Blythe.
Wow, what a product this JB weld was and is. 5 years later I sold the boat and never leaked since that day. I never did take anything else to my friend to weld again. No I don't work for or sell JB weld. Don't purchase the quick weld get the old fashion JB Weld and you won't be dissapointed. Please forgive the typos.