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Topics - Gtt

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Pre War / Drawings
« on: 18 April, 2019, 18:12:51 »

I am wondering if any of the BSA engineering drawings exist? Are they available ? I know the Rudge club are fortunate enough to have most of the factory drawings and have digitised which is helpful when restoring / fabricating.

Also I am looking for an electronic copy of the book of BSA 1929


Pre War / Balancing Act
« on: 15 May, 2018, 17:00:50 »

I am wondering if there is a chart with engine balance factors for prewar engines? Particularly 500cc and 350cc Slopers


Pre War / Cush drive
« on: 10 May, 2018, 03:57:00 »
I believe this is an early cush drive before the single spring arrangement?

Pre War / BSA 350 sloper Crank pin bearing cage
« on: 13 December, 2017, 09:47:10 »

I am looking for a crank pin cage for a  1929 350 sloper . Has to suit two rows of rollers 1/4 dia by 5/16 , 24 in total
crank pin is 1 1/8, con rod big end  1 5/8.


Pre War / Sloper Magneto base plate
« on: 24 November, 2017, 12:14:56 »

I am missing the base plate for a 1929 BSA sloper that sits under the magdyno. I am not sure if someone has one loose they could scan on their printer and send to me and I may be able to have one made? Alternatively I might be able to figure it out if I have the material thickness



Singles / 1929 350cc sloper
« on: 20 October, 2017, 00:44:15 »
I recently acquired a d series 350 cc sloper engine is quite good condition. I am interested to know if the frame is the same as the 500? The barrel and head appears a inch shorter so I am not sure if it requires the bend in the horizontal tube above the engine. I am looking for drawings of the frame if available

Any other differences of note between the 350 and 500? I understand the 350 were less common.


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