Hi All, I am after a Burman BA mainshaft for my Ariel VH, It looks as though it is 11 9/16" long, with a 1/2" thread clutch end and 7/16" the other, would anyone have any suggestions where I could pick one up

Regards

Peter

Continuing on with the work on the gearbox I noticed that the 4th gear sleeve bush on the cog side (ie outside the box) was protruding slightly from the sleeve, does the sleeve bush need to be flush or is this not a real issue

John, it did end up having a bend main shaft, damn

Peter

I picked up an old workshop book that indicated that the dogs can be built up using "Stellite" or similar hard-facing welding rod, Stellite alloy is a range of cobalt-chromium alloys designed for wear resistance. It may also contain tungsten or molybdenum and a small but important amount of carbon.

I suspect looking at the amount of lubrication that came out of the gearbox the grease/oil mix (in fact it was now nearly all oil) had dropped down enough for the layshaft and selector fork to run dry then hot welding the selector fork arm to the sliding gear. Mmmm "there's a lesson"

Well, I found the problem, The layshaft selector fork had fractured welding itself to the sliding gear, or the other way around (It may be salvageable) and breaking away, In the process it damaged gear number 28 breaking off a couple of teeth.

Thanks Les, I must admit I am not familiar with the plunger spring where is it located

Thanks all for your input, sounds like a big day ahead, will get into it and see what unfolds

Hello Team,

I have an issue with a BA Burman gearbox, Out on a run today everything going well when 4th gear decided not to engage, It ran through the other gears perfectly up and down but when trying to select 4th it seems to engage slightly then disengage leaving me to limp home in third, Any ...

I purchased a new 289 from Amal and it worked perfectly, I am sure they could help with what you are looking for

http://amalcarb.co.uk/