I'm looking into buying a trans that the guy used gobs of jb weld to seal a few cracks. I'd like to remove it and have it properly welded, esp considering the location. Read that jb weld breaks down at 700*, and to just torch it.

This is a lot though. Would appreciate any advice on whether I can reasonably expect to remove all of this and have it clean enough to be properly welded. Can a repair in that area be expected to last considering the stresses? How much stress is there since everything inside is against bearings?

 

If the gearset is good, I would try to source another case for cheap if you can. If not, take everything apart, clean it up really well, remove JB weld and have fun with a TIG.

 

Just take a die grinder and grind it all off, until you see shiny aluminum.

 

How much should I expect to pay to have something like this welded?

 

itll be cheaper to get a new casing then getting that fixed

 

best idea.

considering the one welding it would prolly do most of the weld prep (i know i would if i was doing it), you're looking at a hefty price tag for this repair.. thats a lot of jb weld... and jb weld might break down at 700* but aluminum is ~1220* and your typical flames are:
* 2200°C = 3992°F, for Propane/Oxygen
* 2700°C = 4892°F, for Acetylene/Oxygen

i dont think torching the casing to rid of the jb weld is a good idea.... maybe for steel, but not aluminum... not to mention cast aluminum is a bitch to weld especially when its constantly soaking in oil....

 

proper welding, in that area, is likely to cause distortion in the diff bores, get a new case and swap your sets in.

 

I would leave it as is, its not hurting anything

 

i have a bare hydro tranny case that i could sell

 

Yeah I'd be worried about warping the case if its not properly welded especially since those bearing bores are right behind there. Things may already be distored if its cracked. Might just be an ongoing problem if you decided to fix it.

A good H trans shouldnt be too hard to come by.

 

Thanks for the advice guys. If the internals are good, I'll pick it up. There's another guy by him who's trans is toast except for the case, diff and final drive.

It seems like good transmissions in general are hard to come by. Even people who get them from hmotorsonline have grinds sometimes. There's just no way of knowing until you open it up or use it. Have a couple friends who'r local to these two to inspect them before I make a move. The cracked case one is offered to me for $100+shipping, which seems like a decent deal if everything inside is ok.

 

Eeeeewwww. I too would grab a different case unless you just don't have anything bettery to do. Welding it would also distort the case depending on how much there was to weld. Rosko and others are correct. I'd grab a new-to-you case from an H-series or a junkyard Accord. Depending the differential (looks stoock to me) it should be a direct swap ± some shims on the diff bearing.