I would suspect that the number of BSA bikes number less than Norton ....so is there any idea why Norton ring production was ceased.... i stand to be correctedseattle##gs: Hastings still makes Triumph and BSA rings.
Corrected, you are Triumph biggest, BSA second, and Norton barely a blip in the count.I would suspect that the number of BSA bikes number less than Norton ....so is there any idea why Norton ring production was ceased.... i stand to be corrected
I would think that eliminating friction where possible would make a more efficient, cooler running engineThree problems:
1) That has nothing to do with the discussion here - that's a 3-piece ring, not a 2-piece ring.
2) Hepolite only ever used 1-piece and 2-piece AFAIK. Hepolite were supplied with Hastings for some time which were 3-peice
3) He did not say if he considered it as a good or bad thing to have less rings pressure
There weren’t any late 70s 500s. C Range Unit 500s were introduced in 1959.For one thing, the Triumph 650s were made from the early 60s to early 70s and the Triumph Twin 750s from early 70s to the 80s. And the Triumph twin 500s from the early 60s to the late 70s.
I have no idea, but:I would think that eliminating friction where possible would make a more efficient, cooler running engine
Yes to 49 and 59, didn't want to cloud things with the pre-unit years but even more reason why Triumph rings are more in demand.There weren’t any late 70s 500s. C Range Unit 500s were introduced in 1959.
B Range 650s, that can have piston rings in common, were introduced in 1949.
Out of context and it's not a Yes/No question!Question: "Does making them (oil rings) tighter or looser make them touch the walls all the way around and all times?"
Answer: "No".