GTA
Airguns by Make and Model => Vintage Air Gun Gate => Topic started by: mooseslayer on June 26, 2013, 10:20:13 AM
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Just tore down my brothers BSA Mercury he bought new in 1980. I have to source parts for it now. I already sprayed a lot of it with break cleaner to get rid of 33 years of gunk. I think I scraped off the remnants of a piston seal. Here are a few pics
(http://i1305.photobucket.com/albums/s560/mooseslayerjc/bth_BSAMercury_zps7179a3c0.jpg?t=1372259703)
(http://i1305.photobucket.com/albums/s560/mooseslayerjc/bth_BSA1_zps11cd216e.jpg?t=1372259603)
(http://i1305.photobucket.com/albums/s560/mooseslayerjc/bth_BSA2_zps5481069f.jpg?t=1372259666)
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interesting that to take apart you have to unscrew the trigger assembly unit and try and keep pressure on it. Assembly will be tricky to keep from cross-threading. I found the parts I need in UK for about $30 shipped...a bit pricey but I ordered them.
(http://i1305.photobucket.com/albums/s560/mooseslayerjc/bth_BSATrigger_zps35fbd855.jpg?t=1372259637)
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that is going to be a fun project when completed. Did you source the parts from Chambers?
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I looked at Chambers but best prices were airgunspares.com.
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Wow- that's going to be beautiful. I'd love to have one of those, but the only one I've seen for sale was in England, and it's a good bit of hassle and expense to have one shipped here. Congrats! :)
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Hmmm...since the piston seal is basically an O-ring, should I cross-hatch piston chamber with 320grit paper and burnish with Moly or hone to a mirror finish and no moly?
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O-Rings do better with a smooth finish and an actual sliding grease like Krytox than they do with Moly paste, look up nced and his O-Ring Sealed R9 for an example....