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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Black Shadow Crankcase Threads
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<blockquote data-quote="RayF" data-source="post: 176958" data-attributes="member: 5740"><p>Thankyou for the good replies. I had never come across BSC threads here. Can we buy a 9/16 BSC tap? I can get one made as a one off if need be. The exististing thread in the crank case looks around 7/8 UNC. I'm thinking opening it as little as possible and tapping it to a UNF size,machining a plug that is tapped to 9/16 BSC.</p><p>There are other issues to be addressed on this crankcase that I will ask about as we get to them. Thanks again</p><p>EDIT, I just had a look at the link Marcus put up. Thanks</p></blockquote><p></p>
[QUOTE="RayF, post: 176958, member: 5740"] Thankyou for the good replies. I had never come across BSC threads here. Can we buy a 9/16 BSC tap? I can get one made as a one off if need be. The exististing thread in the crank case looks around 7/8 UNC. I'm thinking opening it as little as possible and tapping it to a UNF size,machining a plug that is tapped to 9/16 BSC. There are other issues to be addressed on this crankcase that I will ask about as we get to them. Thanks again EDIT, I just had a look at the link Marcus put up. Thanks [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Black Shadow Crankcase Threads
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