Thanks Bob,
I thought my nearest club was at Little Hay! I shall get in touch with them when things have advanced a bit more.
I tjust tried the new gearbox, with all re-made P-B bushes. Nice and sweet without lube, until I fitted the brackest for the rear panel and it stiffened right up
Undeterred I just ran it in for about 10 minutes off a battery charger with lots of oil on teh layshafts and grease on the gears and enjoyed seeing the current drop from about 2 amps to under 900 milliamps. It now turns freely by hand again. Sorted!
Neil