Leaderboard

Bashing copper seems to be going ok so far. Part way through doming the top to fit the cylinder head. This is to utilise the 1/4"bsf threaded hole in the top to secure it- There will also be a fixing that uses the flange of the crankcase at the shaft bearing output side - Fuel tank caps will be more difficult to form

I just rubbed it on the stone with my finger tip.

Yes Norm, very handy and will have a fair bit of work for them on this. Not made great progress, but have machine cut/threads on several short rods and finshed the 8 brass nuts from the 1inch A/F (25.4mm) Hex stubs which are shown in the very first image on this. Threaded 1/2" BSF and single chamfer . These represent pre-war A/F (across flats) dimension of the 9/16' Whitworth fixings- Starting on the copper beating now the cushion is filled with sand. Regards