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Old December 10th, 2009, 06:32 PM   #1
Plato2k5
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need crack welded on alumium jeep t-case.

Brothers 98 grand with the 4.0L has a crack in the t-case. I'm not sure which one it is.... all I know is it has the fluid couplers and part/full time. There is a crack that leaks fluid.

Could someone weld it up for us that is close to Livonia? I'm guessing you just need to drill a hole at each end of the crack to relieve stress?
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Old December 10th, 2009, 07:14 PM   #2
ChevyRacer1981
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You could probably get away with preheating it and welding it without drilling holes. I could do it but Im a ways away.
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Old December 10th, 2009, 07:26 PM   #3
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I think it cracked because the chain stretched. There was wear marks on the inside when we rebuilt it last year. The engine blew so my brother bought it off our friend. It leaked bad.... lol
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Old December 11th, 2009, 08:42 AM   #4
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I'm not sure which one it is.... all I know is it has the fluid couplers and part/full time.
Can't have all that on the same case. You either have a 249 with a viscous coupler and FT only, a 231 with PT and no FT, or a 242 with PT & FT and no viscous coupler.


I don't know that it matters at all which TC you have based on the issue, but make up your mind.
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Old December 11th, 2009, 08:53 AM   #5
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I'd love an excuse to weld more aluminum...

I'm not very close though.

Last weeks fun
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Old December 11th, 2009, 09:04 AM   #6
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I'd love an excuse to weld more aluminum...

I'm not very close though.

Last weeks fun
Is that pop can welded to your dash? Because that would be cool!
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Old December 11th, 2009, 09:48 AM   #7
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Is that pop can welded to your dash? Because that would be cool!
nope, just fuel for me...

Welding a pop can is extremely difficult, it's about as hard as cleaning the outside to bare metal without denting it. Maybe I'll bust out the .040" tungsten and see if I can weld a pop can still. Might just have to weld it to the dash if I can.
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Old December 11th, 2009, 10:11 AM   #8
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Try
Express Tool & Die Welding
Address:
37050 Amrhein Road
Livonia, MI 48150-1107

I took my aluminum intake to them when it cracked.
They welded it right up on the spot for me, didn't even charge me.
Told me to tell all my buddies about them if they need stuff welded.
I took them a bunch of Doughnuts the next day.
They are really cool, and it's right there in Livonia.

Good Luck.
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Old December 11th, 2009, 10:11 AM   #9
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I broke 2 different 231's right beside the front output. First indication was t-case blood on the floor. Added these gussetts & never had a problem since.



By the way, if you think the welds look good, I did them. If you think they look bad, I had someone else do it.
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Old December 11th, 2009, 12:04 PM   #10
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By the way, if you think the welds look good, I did them. If you think they look bad, I had someone else do it.


PP: Yes I realize that it does not matter lol. But its like asking someone about their truck/jeep and than they start rambling on what is done to it, when really you don't care.

I will have to check out the place in Livonia. Thanks! Also could you just leave it all together and have it welded?

Thanks for the offer Geo, you are kinda far. Nice looking stuff though
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Old December 11th, 2009, 12:12 PM   #11
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Try my Dad, Joe at St. Pierre Inc. 1-248-620-2755. By the way he's in Clarkston.
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Old December 11th, 2009, 12:21 PM   #12
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Also could you just leave it all together and have it welded?
Please videotape.
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Old December 11th, 2009, 12:57 PM   #13
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Also could you just leave it all together and have it welded?
I retract my offer.

Have you ever dropped a pair of jumper cables into a tub of oil? well imagine a huge spark with an instant flame and molten metal popping.... kind of like lighting magnesium on fire and adding in some highly flamable oil.
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Old December 11th, 2009, 02:10 PM   #14
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lol. I guess I never thought of that. I don't claim to have every answer. I guess I thought you could maybe keep it together since its a small crack.
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Old December 11th, 2009, 02:43 PM   #15
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TIG welding is extremely sensitive to outside contamination, TIG welding aluminum is even more so. Any amount of contamination in/on the metal whether it's oil, wax, paint, grease, mill scale, oxidation, you name it, you can notice it and sometimes it really screws up the weld. You actually have to clean aluminum with a stainless steel brush to ensure it's clean enough to get a quality weld on. If you grab a brand new sheet of aluminum and start a bead, the very small amount of surface it has on it is enough to screw the weld up, that's where the stainless brush helps break through that coating. Brake cleaner works pretty well but as you saw with that article a while ago, if you hit a pocket of it, it can just about kill you.
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Old December 11th, 2009, 05:22 PM   #16
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ah ok. I had no idea. That article was a great read as I do somtimes use break clean to clean the weld area.
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