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Old 09-25-2014, 09:43 PM
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darryljs darryljs is offline
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Join Date: Jul 2014
Location: Lehighton, PA
Posts: 301
Default S/G repair back plate crack

When I took the S/G apart to clean and replace brushes, I saw that the back plate was cracked . I was looking to get another one,but couldn't find one. So, instead of buying a new S/G, I thought I would try to fix this one. I have included pics (I know you people like pics), to show what I did (no, I don't have a welder to weld aluminum, yet ). I cleaned the plate and crack,then V grooved both sides. I used a product called Q-BOND (supposed to be better than J-WELD) to fill in the cracks. It dries rock hard in about 10 seconds. I then smoothed flush and made a plate from 1/8" thick aluminum, drilled and tapped 1/4" hole all the way through both plates (had them clamped together). Put Locktite on a short 1/4" bolt and tighten. I drilled the hole for the end plate bolt, which I will install with a star washer (thinner than a lock washer, because of the 1/8" plate. Don't know if it will work, but you don't know till you try.
Attached Images
File Type: jpg S_GPlateRepair1.jpg (63.7 KB, 122 views)
File Type: jpg S_GPlateRepair2.jpg (63.4 KB, 122 views)
File Type: jpg S_GPlateRepair3.jpg (67.6 KB, 121 views)
File Type: jpg S_GPlateRepair4.jpg (70.1 KB, 121 views)
File Type: jpg S_GPlateRepair5.jpg (62.7 KB, 121 views)
File Type: jpg S_GPlateRepair6.jpg (64.9 KB, 121 views)
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