1919 AJS 750cc V Twin Restoration

[olderdan]

Thanks Tony
I totally agree this is a bad design.
You are correct in that the main shafts have protruded into the flywheels a little further (it is a 16 degree inc taper), I had to shorten the small taper end and the threads to compensate. I actually ground the nut clamping faces and faced the nuts from a tight fitting screw cut mandrel to avoid any bias to the crankpin. This is an old chuffer of an engine and only rated at 4HP which is why it survived the abuse. I havent got to the timing gears yet and the cases have had a fair bit if welding so more trouble ahead.