the crank pulley seems to be pressed onto the shaft because i cant find any way to remove it. ide say its more wear in the big end of the con rod causing the piston to slip just over center. but i have a very crude way of taking slop out

.
the belt is probably a bit flogged but ill just wack it together and not worry about it if it runs. ide say the belt is probably a bit stretched too.
it also doesn't help that i couldn't actually see what i was doing on the dark last night!
thanks for the help once again.
best wishes for Christmas and the new year
regards jay