Thanks for the input guys.
I'll measure tomorrow.
Mine has a keyway made from a slotted insert in the centre of the pulley.
Difficult to see if this has gone oval as there was some play when the engine was running.
I have a steel pulley around 6" dia and have never experienced or seen a bent pulley but whatever is worn I think it assisted in my waterpump bearing failure.
I'll put the measurements up tomorrow.
Thanks.
Phil
79 Longchamp GTS 3061
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