Re:
Started working on this today, the serial number on the BB shell is H7N05291, I don't know if that's relevant or if it means anything?
Started de-gunging the drivetrain, I'm sure there was some original 80's mud and crap in the rear cassette!
It's going to take time to clean everything up and also sort out the rust spots on the frame, the seat q/r is done for so have ordered a replacement Kalloy one.
Problem 1. seatpost is stuck in the frame (steel post & steel frame), fortunately it's stuck at just the right height for me to ride it
but I've doused it in Plusgas and will leave it for a few days. If that brings no joy then what next?
Problem 2. The rear cassette has no lockring, thought it looked odd as I was cleaning it, it's a 6 speed Shimano cassette on a freehub, I can see the threads on the end for the lockring to fit on, but the cassette seems to be wedged on there very tightly and is in no hurry to come off.
I guess I could take the freehub off with the cassette still attached to it and replace them both, but as it all seems to work and doesn't seem like the cassette is going anywhere in a hurry I might just leave it as it is?
I'll update with pics as & when...