1950 a10 refurb

[Flash Chris]

Welcome, great to take o such a project. Looking forward to some posts as it advances.

Thanks. I’ve been tinkering away at it for a couple years now, had a bit of a hiatus last year for personal reasons but hopefully back on track soon… I’ve already taken lots of pics but I think I’m gonna have to resize a lot of them due to upload limitations of this site. Watch this space …

[Flash Chris]

Frame blasted and powder coated…

[Flash Chris]

Rebuilding plungers. Improvised tool from threaded bar and right angle brackets to compress plungers for fitting.

[Greybeard]

Nicely done 👍

[Flash Chris]

Thanks. I’d read someone somewhere saying basically to just compress the plungers by hand and slip them in between the lugs to fit. Unfortunately I didn’t grow up in a circus or have access to a home gym for the last 30 years so the bodged up tool had to do. And do it did.

[Greybeard]

Thanks. I’d read someone somewhere saying basically to just compress the plungers by hand and slip them in between the lugs to fit. Unfortunately I didn’t grow up in a circus or have access to a home gym for the last 30 years so the bodged up tool had to do. And do it did.

Yes, Musky here will tell you he does it by hand but he's Australian, he wrestles Drop Bears.

[Flash Chris]

Fork rebuild. The bodged up plunger compressor was modified to assist with drawing up the stanchions into the top yokes, using one of the old fork nuts with the edges ground off.

[Flash Chris]

Back end rebuild getting there …

[Flash Chris]

Engine and gearbox work has been handed over to a local restoration team. Makes me all kinds of twitchy, after all it’s not just a collection of auto jumble parts, but it’s in good hands and the job will get done far better than I could manage!

[Flash Chris]

It was good to hear that all looked good - apart from normal wear and tear to bearings, gearing etc there was no signs of anything being previously butchered or bodged … of course the sludge trap was crammed full …

[Flash Chris]

Out of interest, does anyone know the significance of this stamp where the inner timing side cover mates up against the crankcase?

[chaterlea25]

Hi Chris,

I cannot answer for certain but it is common to find random inspection stamps on various BSA parts
Later gearboxes have the gear ratio code stamped on the mid case STD, RR, RRT2,SC and various combinations.
A late RGSS that I am doing the gearbox on for Paul K has 3 initials? stamped on almost every part of the bike. The stamp style look very BSA????

John

[Flash Chris]

Good progress on the engine …

[trevinoz]

Just as a matter of interest, the timing cover is from a later model.

[Flash Chris]

Just as a matter of interest, the timing cover is from a later model.

That’s interesting. Can you elaborate please?