I've contacted a number of repairers and suppliers but no one appears to have anything that is old stock or remanufactured so I'm scratching my head at the moment. I've soaked the cork (?) facing in thinners and it is slowly coming clean, but my concern is why the grease got there in the first place so I'm off to an engineering shop in the near future to ask what can be done.
Apart from that, the engine works fine so thank you to those who had suggestions for the capacitor as that was the problem there.
Cheers
John
