BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: DAVE BRADY on 18 Mar, 2024, 16:45

Title: A10 SR and A65 split valve cotters
Post by: DAVE BRADY on 18 Mar, 2024, 16:45
Hi,

Does anyone know if the split cotters for the valve top caps are the same for A10 SR and A65?

Dave.
Title: Re: A10 SR and A65 split valve cotters
Post by: JulianS on 18 Mar, 2024, 18:03
Unlikely, different part numbers. SR type 65 1624 the A65 type 68 -158 until 1969 then replaced for 1970 with 71 1166 which had the angle changed from 15 to 20 degrees.

Below photo  of the SR type.
Title: Re: A10 SR and A65 split valve cotters
Post by: DAVE BRADY on 18 Mar, 2024, 18:49
Hi,

Comparing images online it looks like the A65 ones are shorter.  I will have to have a rummage and find some.

Dave.