Anyone ever drill JB weld? How does it stand up to machining? Think.. threadless bushing.

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i once fixed a bmw radiator with it and the repair lasted 4 months or so. i think it actually failed somewhere other than the repaired area. i've also had it not hold a fix on my golf bag. i wouldn't hesitate to drill it or grind it but depending on where it has to live...i guess you just never know until you try.
regards
gregg

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0o==o0

James 4:8

"...let us put aside the blindness of mind of those who can conceive of nothing higher than what is known through the senses"
-Saint Gregory Palamas, ---Discourse on the Holy Transfiguration of Our Lord God and Savior Jesus Christ


Centrally located in North East Central Pa.

Trying to make a throttle bushing, are you?

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

I used it to build up a wear surface on a pot metal VW door handle once. Actually, laminated layers of JB Weld and beer can aluminum with the last layer aluminum.

It's also holding coolant in the Massey Ferguson's cracked water jacket.

Cast a new weed eater cutter head...

It machines easy but because of this I don't think it would wear well. How about a brass insert surrounded by JBW?

eeh. I am not ready for that.

I had to remove the slide rail pins from the 617 engine.. enough said.

after I was done drilling I decided I needed to build the orifice for the pin back up to reduce the chance of oil leak.

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If the pins still hold tight then I'd use silicone RTV. It will give you a better seal and no worries about it "welding" the pins into the cast.

It drills okay, more like a "plastic", which of course it is. Use a high-speed, SHARP drill bit at high rpms to get the cleanest job. Use a drill guide to get the hole true. It's very easy to go off-center through the epoxy.

thanks for that. I plan on setting the JB in place then sending a 'dummy' pin into it coated with wax so it can be removed. Then send my new pin into the fresh hole. The only prob I have w/ the RTV suggestion is allowing for slop/ play in the pin which transfer to play in the rail... possibly??

but this is sounding pretty do-able. Thanks everyone.

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The slide rail pins are not supposed to move if installed properly (like everyhting I do of course...) so that might not be an issue. However, all of my next trips to any hardware stores will include the search for a reinforcement bushing.. thanks again.. I am enjoying your opinions.

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I used it to repair the stripped out air cleaner mounts on top of the intake manifold on my 240D. I drilled out one of the hole oversized. Then filled the cavity with JBWeld and inserted a new air cleaner mount with a new thread insert screwed onto it into the JB Weld and let it dry over the weekend. I drove the car for almost a year and many thousands of miles after that and the repair remained perfect.

- Peter.

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2021 Chevrolet Spark
Formerly...
2000 GMC Sonoma
1981 240D 4spd stick. 347000 miles. Deceased Feb 14 2021
2002 Kia Rio. Worst crap on four wheels
1981 240D 4spd stick. 389000 miles.
1984 123 200
1979 116 280S
1972 Cadillac Sedan DeVille
1971 108 280S