Hi Max,
Thank you very much for that.
I will use your method tomorrow as I have the exact type of gear you are showing in your photo, but as we have had 45 degrees today and much the same tomorrow I shall do this first thing in the morning so as to avoid the intense heat we are experiencing for the past 4 days now.
BTW when you refer to supporting the opposite side I gather you are implying placing a heavy hammer head etc. against the other side that's being struck simultaneously so as to absorb the shock and not transfer it down the crankshaft ?
Cheers,
BB.