Crankcase repair

ja_cain · Jan 6, 2015

Crankcase repair I did for the neighbor boy's four wheeler after it threw the chain. Should have baked it for a few hours in the oven as it would have been a bit easier to weld cleanly but so far it has been holding up with no leakage. That cast aluminum is just so bloody porous and really needs a thorough cleaning then baked for a while to get nice results on the first go.

Don't worry, I also welded the back side too but forgot to get a pic. I feal like i should have beveled the edges more so i could garantee good penetration but didn't have enough time to fuss with it. Anyone else done any crankcase or oil soaked welding repair jobs?

jngreen · Jan 6, 2015

That's what JB Weld is for, lol.

ja_cain · Jan 6, 2015

jngreen said:
That's what JB Weld is for, lol.

Never used it. I'm assuming it's some type of epoxy. It was good to get some experience trying to tig nasty contaminated aluminum. It really wasn't that bad and kind of had fun doing it even though I didn't have a lot of time to dedicate.

89 Stroker · Jan 11, 2015

jngreen said:
That's what JB Weld is for, lol.

jb weld is just a band aid , it wouldn't do anything for a hole that size on dirty metal

ghohouston · Jan 11, 2015

You'd be good at welding up 7.3 pedestals

ja_cain · Jan 11, 2015

ghohouston said:
You'd be good at welding up 7.3 pedestals

I have thought about trying to gather up some to do EBPV deletes and then reselling them. I should have one done once it warms up a little. Do you think there would be any takers if I can supply real nice photos of the work?

ghohouston · Jan 11, 2015

ja_cain said:
I have thought about trying to gather up some to do EBPV deletes and then reselling them. I should have one done once it warms up a little. Do you think there would be any takers if I can supply real nice photos of the work?

I'm sure some would buy em, if you could do it cheaper than a delete pedestal costs.

jngreen · Jan 11, 2015

89 Stroker said:
jb weld is just a band aid , it wouldn't do anything for a hole that size on dirty metal

I was only partially joking, but I'm just as impressed with his patch as I am his welding. It looks like the repair will outlast the life of the ATV.

89 Stroker · Jan 11, 2015

jngreen said:
I was only partially joking, but I'm just as impressed with his patch as I am his welding. It looks like the repair will outlast the life of the ATV.

it should , i hate welding on dirty surfaces , like fixing a hole on the bottom of a vw bus trans , terrible