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Author Topic: BSA Gold Star sleeve valve engine  (Read 279 times)

Offline Greybeard

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BSA Gold Star sleeve valve engine
« on: 01.10. 2023 09:51 »

BSA Gold Star sleeve valve engine
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Greybeard (Neil)
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Offline muskrat

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Re: BSA Gold Star sleeve valve engine
« Reply #1 on: 01.10. 2023 20:44 »
G'day GB.
A very complicated design with lots of moving parts to wear.
A rotary valve engine, of which there are many designs, would be better. The problem with it is sealing (like the Wankel).
https://www.oldbikemag.com.au/spin-doctors-rotary-valve-cylinder-head/
Cheers
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