Well that's good to know, thanks. I'd see s few photos that looked like there were pins joining the two discs & thought it'd make sense to have them like that.
I've resurfaced the discs with new corks now & I'll clean all the old grease off the shaft cause it's pretty grotty & gone a bit hard, so that may well be a cause.
What grease would you recommend lubricating the shaft with?
Next thing then is to check the pedal & linkages for wear, I've also got a new belt to fit so that may help as well.
also, how much wobble is acceptable on the drive pulleys (the outer ones without the cork clutches), the bearings are nice & free but ther's a bit of sideways movement there, probably a few mm at the outer rims of each. Looks like the bearings are a pain to replace too..
thanks,
tim.