Thanks Dave, The pulleys on the machine look totally different to any I have seen before. The pulleys are riveted to the support arm. Similar to the more recent Creda X245677 assembly.
I will order myself a pair of arms and a pair of pulleys.
Dave, I wont be able to use these pulleys and arms.
The pulleys come as a pair in a sort of caliper fitted to a pin on the motor body. I have lubricated them at the moment but I can’t see them lasting for long.
What a sod of a job to get this machine to pieces!