BSA Owners' Club Forum

The BSA Workshop => Twins => Topic started by: Bess on 04 March, 2017, 14:41:06

Title: A65 - O rings
Post by: Bess on 04 March, 2017, 14:41:06
Hi All,

Does anyone have or know where I can get a list of all o rings sizes for the engine?

Thanks...
Title: Re: A65 - O rings
Post by: Arthur on 04 March, 2017, 15:29:04
The A65 engine only uses a handful of O-rings and some of these are available from parts suppliers under the appropriate part numbers. For less critical ones, for example, as a seal for the oil release plug, it is normally sufficient just to pick an appropriate imperial size from an O-ring set.
Title: Re: A65 - O rings
Post by: Bess on 04 March, 2017, 16:58:25
Thanks Arthur,
                        I was hoping to get the sizes and buy Viton rings to ensure quality.

I am building a couple of bikes from bits and pieces and have a A50, they are a mixture of years so I am compiling a reference manual for each of my bikes for the future.

Best wishes...
Title: Re: A65 - O rings
Post by: Arthur on 04 March, 2017, 23:57:31
The sizes of some of the O-rings are available. What year is your A65?
Title: Re: A65 - O rings
Post by: Bess on 05 March, 2017, 10:56:21
Hi Arthur,
               The cases are the later design 1969 - 1972, I have not had them specifically dated as yet.

Best wishes.....
Title: Re: A65 - O rings
Post by: Bess on 05 March, 2017, 14:01:22
Hi Arthur,
                Managed to determine the engine dates which are 1968 and 1969.

Best wished....
Title: Re: A65 - O rings
Post by: Bess on 05 March, 2017, 20:24:09
Hi,
    I have managed to get the dimensions of all the o rings....thanks