classic motorcycle forum
Motorcycle Discussions => British Bikes => Topic started by: robbsa on October 23, 2019, 03:28:00 PM
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Hi All,
I need to get some slots eroded into my valves for my BSA1929. Got some new valves from BSA Bob? a few years ago but without slots to hold the pin for the valve springs. I'm in the bristol area - tried a company in porttalbot who said they could do it, but have failed to reply to my messages since.
Anyone know of any other options out there?
Many thanks
Rob
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Hi Rob,
Recently I rebuilt a BSA G14 BSA V twin engine for a friend and was faced with the same dilemma
I have come across quite a few failures of the keepers for slotted valves and talking to quite a few guys on the USA Cannonball Run last year their experiences were similar and most had opted to convert to collet retainers
On the BSA I searched around for suitable valve caps that would fit the BSA springs
I had some Triumph ones where the tapered BSA spring sat nicely on the inner spring land
Some measuring up to get the correct position on the stem and turning a simple groove on the valve stems to suit the Triumph collets and job done
John