Tig Welding Motorcycle Cases

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Can anyone Help me with info on Welding motorcycle Cases, Are most of them Aluminum? or Magnesium?????????? What is the process? I have alot of experience Tig welding Alum,stainless But I have always avoided Cases. Argon? argon/helium? Filler Rod 4043? 5356? Please Help Me. thanks John
Reply:This sounds like a job for......somebody else, (not me)!I know many are aluminum for sure, what kind on bike is this from?Last edited by tanglediver; 02-10-2008 at 09:33 PM.City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:First of all is it Aluminum or Magnesium?Makes a diffrence in the grand scheme of it all..If it's Aluminum grind it out to a v and use 5356..Same thing but diffrent..Same principals apply..http://www.weldingweb.com/vbb/showthread...ighlight=Honda...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Can you tell me How to tell alum or mag???
Reply:If it's a Harley it is aluminum. Anything else I can't say. Tig is the common process for repairing them, though I have seen it done with sticks with no problems. For aluminum use Ar, or ArHe mix. Never ArCo2. Lincoln says under 400 amps use straight argon.The difference between art and craft is the quality of the workmanship. I am an artist.
Reply:Originally Posted by John KadlecCan you tell me How to tell alum or mag???
Reply:Sounds Good Thank Youjohnyrtnow
Reply:Can you tell me how to change my Name To a handle or nick name????johnyrtnow
Reply:Be sure and do some pre-heat on those cases. I use a Victor rosebud tip with my O-A set and some wax temperature sticks. 250 deg. F should do. Another thing that the heat will tell you will be whether the parts are clean enough.  Older Harleys before the Twin Cammers were often sand cast. Those are porous and will often conceal oil within the pores. They can be tough to get clean. The really old ones were so porous that Harley used orange shellac inside to seal the blowholes. If at all possible, the engine should be completely stripped and the cases bolted together to ease warpage.....unless the work is to be done on the inside. Magnesium is seldom used on bikes but the shave test mentioned above should be used if you aren't sure. Most bike cases are aluminum alloy of one type or another and can generally be welded. Good luck.   Last edited by gnm109; 02-11-2008 at 01:38 AM.Miller Millermatic 252Miller Syncrowave 200Liincoln AC-DC 225Victor O-A Set