Postby Paul_Linden » Wed Mar 11, 2020 1:12 pm
The engineer will need to know the clearance between the crank and the bush. The figure is quoted in Waller, it seems a bit “baggy” but that’s to allow for expansion.
Square 4 mk1, Square 4 mk2, Ariel Colt, Matchless G12, BSA C12.