Author Topic: BSA gearbox in a lathe  (Read 520 times)

Offline terryk

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BSA gearbox in a lathe
« on: 30.11. 2015 14:32 »
There are so many uses for BSA engines and gearboxes here's a gearbox used in a lathe.

https://www.youtube.com/watch?v=n5YtMRlMzQE
1950-53 A10 rigid/plungers, 1958-61 A10 super rockets, 1947-50 A7 longstrokes, 1949 Star twin,
1951-54 A7 plungers, 1940s M21, WDM20s,
1948-50s B33s rigid/plunger/swingarm, 1948-50s b31s rigid/plunger/swingarm

Offline coater87

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Re: BSA gearbox in a lathe
« Reply #1 on: 03.12. 2015 23:19 »
Nothing like a 10 inch lathe with a 3 inch Chuck powered by a pre-unit 4 speed.
Central Wisconsin in the U.S.

Offline Rocket Racer

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  • A kiwi with a racing A10 rig and too many projects
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Re: BSA gearbox in a lathe
« Reply #2 on: 18.12. 2015 03:10 »
probably the earlier C11  4 speed which has both mounts underneath. Basically the same as the A10 box but apparently closer ratio's and of course a slightly different shell. 
A good rider periodically checks all nuts and bolts with a spanner to see that they are tight - Instruction Manual for BSA B series, p46, para 2.
New Zealand