The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: Trevorp on 22.05. 2024 17:49

Title: Engine help please
Post by: Trevorp on 22.05. 2024 17:49
could someone please, tell what year this engine is, also is there anyone in Norfolk, who do bottom end work
Title: Re: Engine help please
Post by: Roger (Doomtrainbarx) on 22.05. 2024 18:57
Looks to be 1953 ?
Title: Re: Engine help please
Post by: Macbeth on 22.05. 2024 20:22
could someone please, tell what year this engine is, also is there anyone in Norfolk, who do bottom end work

https://www.britbike.com/technical/bsa_serial_numbers.html#1953
Title: Re: Engine help please
Post by: muskrat on 22.05. 2024 20:32
G'day Trevorp  *welcome*
Mac beat me to it (same page I was looking at).
1953 A10 plunger. Looks like someone has been there before by the long barrel stud.
Why not have a go yourself? Lots of info and members to help.
A frame number will help as your profile says 1951 GF

Now get over to Intro's and give us your story.
Cheers
Title: Re: Engine help please
Post by: limeyrob on 22.05. 2024 21:00
Looks like it could be a later barrel.
The first job is to soak everything in penetrating fluid for a few days, then carefully strip it down. 
Before you can take the engine anywhere you really need to know what condition the crank is in and what grind its on before you can ask anyone to do work on it.
Same with the cylinder and bores, otherwise you are taking it somewhere only to have the guy phone and say - bring me another crank or cylinder.
Title: Re: Engine help please
Post by: KiwiGF on 22.05. 2024 22:21
could someone please, tell what year this engine is, also is there anyone in Norfolk, who do bottom end work

From bitter experience, an (untampered with) engine number will only tell you what model year bike the drive side case was made for. The rest of the engine can be a voyage of discovery  ;) as can be the frame and cycle parts, come to think of it.

A lot can happen in 70 years…….
Title: Re: Engine help please
Post by: CheeserBeezer on 23.05. 2024 08:37
could someone please, tell what year this engine is, also is there anyone in Norfolk, who do bottom end work
You're not far from Draganfly, I dare say they could recommend someone.
Title: Re: Engine help please
Post by: chaterlea25 on 23.05. 2024 10:23
Hi Trev,
You are not very far from "Seager Engineering"

John