OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Question On Scott Bonnar Cylinder Mowers DIY.... Innovative or dodgy?

Picked up a Diplomat as a donor machine, broken ring gear and no motor, rusted frame but the rest looked pretty good so as a machine to cannibilise for spare parts I couldn't let it go.
Dismantled the rear rollers and there was plumbing PVC pipe in there.
Closer inspection revealed that the 4 rivets had popped on the roller end and said PVC was cut the exact length to jam it in place off the opposite roller.
Given how difficult it was to get the pulley off I would hazard a guess this was done a very long time ago.

the pvc pipe is part of the rear roller assembly, they are called drum shaft dirt sleeves, and as the name implies, they keep dirt out of the drum shaft.

You are correct, I just checked the parts list.
Strange though because it was only on one side and when I took the drum apart in my own machine there were none