Hole in block

[rcnations]

I just picked up my Force 125 block from the machine shop after having a cylinder sleeved. When I got home, I found a hole in the block about a 1/4" in diameter. It seems when the shop was machining the hole they let their tool go all the way to the bottom of the bore, next to the crank jounal. (They use a mill not a boring machine) They tried to tell me it was that way when I brought it in, but there is no oil or stain in the area of the hole! They are going to fix it with JB weld. Is this a standard repair or should I ask them to find me a new block.

 

[jerryjerry05]

Re: Hole in block

JB weld will eventually come loose with the gas/oil and the heat up and cooldown when running.If possible get it welded.Jerry

 

[rcnations]

Re: Hole in block

Will Marine Tex work any better than JB weld?

 

[roscoe]

Re: Hole in block

weld

 

[jerryjerry05]

Re: Hole in block

There are lots of ways to fix it.But only welding the hole is the correct way.
JB,Marinetex,etc will eventually fall out!!!!!!!!!!!!!!
Make them get it welded.They broke it. It's possible they could find a used part somewhere. Jerry

 

[rcnations]

Re: Hole in block

Ok, Now I remember what I used years ago. Devcon (aluminum putty)...it should do the job! I used it on many aluminum things, you can even drill it or tap it! So if I can't get them to weld it, then I might fix it with Devcon. Thanks for all the input! This is a great site!!

 

[jerryjerry05]

Re: Hole in block

Aluminum putty means you will be fixing it again.The ONLY way to fix is welding.
The block heats up and cools down expansion/contraction will make ANYTHING you put in there fall out.Welding mixes the old metal with the new and won't come out.
Your fix might last a while but won't last as long as welding.Jerry