Roger Borg Posted June 21, 2023 Share Posted June 21, 2023 I picked up an AB 8" ge some time ago, and digging into it finally. The blade has a sad repair on it, seems someone tried to solder it, since the round part that passes through the hub and attaches to the rotor is not secure, and spins inside of the the hub. Meaning the cylinder is not secure to the hub. Do I use soldering wick to get the gunky solder off? Then to the heart of the issue, how should these two parts be properly joined? Thanks... Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted June 22, 2023 Share Posted June 22, 2023 5 hours ago, Roger Borg said: [How to] ...to get the gunky solder off? Heat the gunky solder until it's molten... Quick, point-blank blasts* of compressed air... will remove nearly all the solder. What remains is the solder that has "wetted" into the surface. This solder-to-base-metal wetting is an intermetallic bond and is very very thin. A Scotch-Brite pad will cut through it readily. * Away from you! Wear eye protection too. Quote Link to comment Share on other sites More sharing options...
Roger Borg Posted June 22, 2023 Author Share Posted June 22, 2023 4 minutes ago, Jim Kovar said: Heat the gunky solder until it's molten... Quick, point-blank blasts* of compressed air... will remove nearly all the solder. What remains is the solder that has "wetted" into the surface. This solder-to-base-metal wetting is an intermetallic bond and is very very thin. A Scotch-Brite pad will cut through it readily. * Away from you! Wear eye protection too. Easy enough, thanks. And part 2 of the question, any idea best way to properly rejoin and repair?? Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted June 22, 2023 Share Posted June 22, 2023 1 hour ago, Roger Borg said: And part 2 of the question, any idea best way to properly rejoin and repair?? Great info from the old forum... Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted June 22, 2023 Share Posted June 22, 2023 Note the I.D. chamfer... Try the 12 pointer. Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted June 22, 2023 Share Posted June 22, 2023 2 hours ago, Jim Kovar said: Quick, point-blank blasts* of compressed air... If lacking compressedair, a small wire brushwould suffice. Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted June 22, 2023 Share Posted June 22, 2023 ** Do not, do not, do not!,use the wife's tooth brush. Don't even think it! Quote Link to comment Share on other sites More sharing options...
Lane Shirey Posted June 22, 2023 Share Posted June 22, 2023 Just be careful when using the air gun. That molten solder flies everywhere. Use a face shield. That is the best method. Quote Link to comment Share on other sites More sharing options...
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