The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: Mikey82 on 14.04. 2026 15:09

Title: Oil pump
Post by: Mikey82 on 14.04. 2026 15:09
The SRM pumps aren’t in stock and could be couple months or longer is there a similar alternative or has anyone got a good used pump they could sell me please, just to get some miles in.
BSA A10 swinging arm model
Title: Re: Oil pump
Post by: Catz on 14.04. 2026 16:26
Andrew at Priory Mags might have one. There is one listed on his website but...phone him and see. https://sites.google.com/site/priorymagnetos/crankcases  Scroll through.
Title: Re: Oil pump
Post by: muskrat on 14.04. 2026 20:20
G'day Mike.
Why don't you reco your old one?
Easiest way just take the end plate and extension housing off (do not remove the gears). Use a thick piece of glass and wet&dry paper and lap the gear marks out of the plate & housing. Care when assembling use the glass to keep the parts flat and tighten the screws a little at a time and spin the pump between each tighten. If it binds back off screws and start again.
Better than waiting weeks to find a new replacement and if s/hand I'd do the above anyway.
Cheers
Title: Re: Oil pump
Post by: Rex on 14.04. 2026 21:56
But as Musky says, DO NOT remove the gears unless you've marked them indelibly. They don't go back together haphazardly.
Title: Re: Oil pump
Post by: Swarfcut on 15.04. 2026 08:08
 Hepolite/Wassell do a cast iron bodied pump which is worth a consider. Anyone bought one lately? They were priced at the same level as the SRM pump.

 Swarfy.

Additional. Like SRM a quick looky on t'net would indicate that for the time being both are on back order from the usual suspects.