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Post by sweepleader on Dec 23, 2017 19:03:41 GMT -5
I would think JB Weld would work. I might drill a few little holes in the edge of the break to key the epoxy to the mag. I might also use some pop can strips as dams to contain the runny stuff. I have used pop can aluminum several times. The inside coating on the stuff keeps the epoxy from sticking to the aluminum. Easily cut with a scissors.
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Post by Deleted on Dec 23, 2017 19:04:30 GMT -5
Do you guys think JB weld would be the right way to patch it or is there something else better? It looks like it might have been dropped and the air filter cover caused the break, it may have happened at the same time as the cover was damaged. The best way would be to build up the area with a tig welder and machine it smooth. I currently don't have a tig welder so JB would be the 2nd best option. Just be sure to do proper prep, could probably use a dremel to machine the JB to the proper dimensions. I don't have a TIG either, I heard of this stuff called Belzona, but I have no idea were to get it
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Post by sweepleader on Dec 23, 2017 19:58:58 GMT -5
I have TIG and I would epoxy it. This is not a structural part and castings, especially ones soaked in oil for years, are notoriously difficult to weld. And besides that it is mag of unknown alloy. Welds like that involve a lot of risk and luck.
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Post by sawnami on Dec 23, 2017 20:32:37 GMT -5
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Post by sweepleader on Dec 23, 2017 21:07:55 GMT -5
Very nice. I have never tried that method. Looks a lot easier than TIG on those castings. What do you use?
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Post by Deleted on Dec 23, 2017 21:36:30 GMT -5
How well does the aluminum stick to the magnesium? I have a torch and could put a small piece of tin on either side of the half moon, just wondering how well the aluminum would melt and hold to the magnesium compared to epoxy? Any thoughts/ Thanks a bunch, this is good stuff. I thought I saw a yellow Barker for sale in the Tulsa area a few months ago, is this it?
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Post by sawnami on Dec 23, 2017 22:50:30 GMT -5
Very nice. I have never tried that method. Looks a lot easier than TIG on those castings. What do you use? I use Forney brand and HTS2000. It takes a little practice but seems to work well.
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Post by sawnami on Dec 23, 2017 23:06:37 GMT -5
How well does the aluminum stick to the magnesium? I have a torch and could put a small piece of tin on either side of the half moon, just wondering how well the aluminum would melt and hold to the magnesium compared to epoxy? Any thoughts/ Thanks a bunch, this is good stuff. I thought I saw a yellow Barker for sale in the Tulsa area a few months ago, is this it? It holds good and I like it better than epoxy. You just have to remember that the flame only heats up the casting to melt the brazing rod and shouldn't come directly in contact with the rod. You know when you did a good job when you hit the repair area with a hammer and it rings. It makes a dull thud when it isn't right. Didn't know about the Barker in Tulsa. I've presently got 3-AH-81 (131cc) Barker's torn down to make two runners.
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Post by rarefish383 on Mar 20, 2018 10:18:38 GMT -5
What's the statis on this project? Does it take a 3/4 inch clutch drum? I bought an nos drum for one of my 1050's, years ago, and when I got it it was a 3/4" and I needed a 1/2", IIRC?. Does that sound correct. I don't have it, but I know where it is, Joe.
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Post by undee70ss on May 28, 2018 1:15:45 GMT -5
What's the statis on this project? Does it take a 3/4 inch clutch drum? I bought an nos drum for one of my 1050's, years ago, and when I got it it was a 3/4" and I needed a 1/2", IIRC?. Does that sound correct. I don't have it, but I know where it is, Joe. S1050’s either came with 5/8 or 3/4 clutches, but I don’t believe the drum changed.
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