welding cast alum case
I have (2) G62 cases and both are cracked. I have tried to weld them with a special rod but it would not take. I'm looking for info on what to do. Thanks
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welding cast alum case
try a tig welder
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welding cast alum case
Don't know if it works as I have never tried it before but they advertise a product called "JB Weld" for something like that. I think it is more of an epoxy but you might check it out. Comes in a tube. If you believe their advertising it will fix just about anything, it's a miracle. I've seen it in 'Home Depot' stores and you can probably find it in just about any hardware store. There may be someone out there that has used the product and testify if it works.
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welding cast alum case
Dear Ilurc,
Welding success depends on if the casing is cast (cheapest and probably what you have), forged, (real good), or billet stock. (Maybe, maybe-not). Billet is excellent, Dub Jett and some other guy just made a 40 pylon engine from billet aluminum. It's a work of art. Now back to your question. JB weld is terrific. It can be machined, drilled, tapped, or just smeared on. The stuff I have is steel, i've had it for many years. I don't know if they make an aluminum version. Getting back to welding for a moment, cast can be welded by a GOOD welder with lots of TIG experience. The other two are a snap. But don't count on any longevity of the repair. Think about selling it. Now, if you use JB, follow the instructions closely. One EXTREMELY IMPORTANT STEP IS THAT YOU GRIND (dremel cutting wheels) THE CRACK COMPLETELY THRU. DON'T "VEE" IT, OR "NOTCH" IT. If it's in the crank-case you will never get all the fuel/oil residue cleaned out other wise. |
welding cast alum case
ilvrc
something happend and I never got to finish my last post. anyway, make sure the area around the cracks are super clean. I have no idea what the inside looks like, if you have tolerance problems, put a piece of clear packing tape inside to back stop the JB. Good luck with this, let me know how it turns out. If you wan't, you could send one of the motors to me and i'll see what I can do. Take care- Steve (aka BlackBart) |
welding cast alum case
You didn't say where they are cracked....
High stress area or some where else out of the way... That will make the difference between JB and getting it welded... A good welder with a TIG machiene and the HF adjusted right should not have a problem with welding it... BB1 |
welding cast alum case
Both cracks are on the back case where it would mount to the firewall. And the cracks run around where the bearing seats. There is plenty of room to weld from the back side. If welded from the inside it would be a nightmare of grinding to get the bearing to seat again. Thanks for the help and keep them coming.
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