I had the auxiliary rings blackened. Now I can start folding the crank

New bearings have arrived, I will be able to fold the crank

today we made a new housing for crankshaft bearings. is abraded with an overlap of 0.02 mm

I found many answers to my questions about renovation. thank you, it's a great help

we are slowly moving on. I ordered new bearings.

I need your advice. We are working on a cut for the Ariel 4F / 600 from 1932. I will use the original set of Hepolite pistons with a diameter of 56.9 mm. What clearance did you use for the front and rear pistons of your 4F / 600?

I set about restoring the pump and crank. so far so good. The new pump is also mounted with a drive. Crankshafts disassembled so far. We need to fix it to its original state. Someone put them in metric measures

I know that motorcycle. Its parts are in good condition

I was waiting for more answers and suggestions on how to proceed when repairing the crankcase. So I'll try to do it myself. I will inform you

great basis for renovation. And a wonderful result of your work. Congratulations.