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BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: 13Brads on 01 Aug, 2020, 19:48

Title: M21.
Post by: 13Brads on 01 Aug, 2020, 19:48
Good evening.

Can anyone tell me the size of the spring loaded ball in the timing chest of an M21 please?
Title: Re: M21.
Post by: 13Brads on 02 Aug, 2020, 17:19
Its ok I've got the size now. Its 3/16 inch in case anyone needs to know.
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