TR3A CRANK/WATERPUMP GENERATOR PULLEYS

[Angelo Graham <a3graham@mc1adm.uwaterloo.ca>]

Listers:
Has anyone attempted a conversion to 1/2" pulleys on a TR3A?  I have caught
bits of  information about using an MGB (!) crank pulley and waterpump and
generator pulleys in alloy supplied by one of the British accessory
suppliers.  I hope to use an alternator on my 3A and before I attempt to
attach the standard 3/4" pulley to the alternator, was wondering if there
was another approach.
Thanks in advance for any information.

Angelo Graham
1959 TR3A
Waterloo, Ont. Canada