View Full Version : Need info ASAP please:
12-11-2009, 07:06 PM
Hey guys I have a crack where my tunnel protector was riveted to the aluminum bulkhead the bulkhead is cast aluminum. I can't get the snowmobile anywhere to get it welded up as it's all tore apart in my garage and I have a HH140 but have never tried welding aluminum with a Mig before. Many many years ago in school I did some heli-arcing and did quite well so is this something I should attempt or see if I can get someone to come to my house to do it? I do have some aluminum to practice on here. Also if I do attemp it from reading on here I should preheat it with say my propane torch and then have at it correct. Also could I weld a piece of 1/16" aluminum over the repaired area or just weld up the crack and call it good?
12-11-2009, 07:39 PM
Well I think I can answer my own question. I have 75%argon and 25% CO2 so I can't do it anyway.
12-11-2009, 10:18 PM
Got a 100Amp stick welder? Try aluminum stick. There are a few threads about it on here and weldingweb.com
12-11-2009, 11:07 PM
Nope don't have a stick welder just the HH140. If I went and got a tank of Argon and some aluminum wire I might be able to do it but not sure if I can even do it with my HH140 as I don't have and it doesn't have the capability to put a spool gun on it as far as I know anyway. I'm a rookie with the MIG as it is. But I have laid some real nice welds with it even my professional welder buddies say so. I have left messages with some of them but no response yet.
12-12-2009, 09:34 AM
What have you got to lose? Put your gear in order and practice a few beads on similar material for practice. Once you are satisfied with your results, move on to the actual repair. Clean the parts, weld the parts, put your machine back together with the repaired parts or throw away the ruined parts and buy new.
12-12-2009, 02:05 PM
Well one of my buddies finally called me back and said he could weld it up tomorrow or Monday so hopefully it will be all good after all. I just can't throw out this part it is part of the bulkhead on a 4stroke Yamaha snowmobile and almost everything chassis wise rivets or bolts up to it. There are actually 3 layers of metal in that area top layer cast aluminum, middle layer is just aluminum heat shield for the exhaust and bottom layer is cast aluminum and they are all riveted together.