BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: Glover on 17 Oct, 2020, 13:11

Title: A10 oil pump
Post by: Glover on 17 Oct, 2020, 13:11
Hi all , recently bought an oil pump for
A project engine , standard cases,  supposed standard
Pump , but as you can see from the photo
The third screwe hole is about 10mm away from
Pump boss , any ideas?
Title: Re: A10 oil pump
Post by: JulianS on 17 Oct, 2020, 13:36
Does not look like an A10 pump. Could be an A65 one.

A10 pump photo below.

The steel tube visible would suggest the lubrication system has bee modified.
Title: Re: A10 oil pump
Post by: Glover on 17 Oct, 2020, 17:36
Hi yes I'm doing the oil mods,  I dont think it's off an a10 ,
But am in the dark as what it could be off , the mid cover will not fit either,  not a65 no webbing to the third mount !
Title: Re: A10 oil pump
Post by: JulianS on 17 Oct, 2020, 18:19
Early A65 pump no webbing.
Title: Re: A10 oil pump
Post by: Glover on 17 Oct, 2020, 21:26
Yes that might explain it , 62 etched on pump and feed port
On pump has chamfer as the a65 have the anti drain bearing
Directly under the pump , nice one thanks .