Made a good start on stripping the machine down to fix the drive ring gear tonight. It went smoothly except for removing the engine. I cant get the engine pto shaft to separate from mower drive shaft. I removed the grub screw, drowned the parts in RP7 and still no joy. I used 2 blocks of wood, 1 against the engine, the other against the driveshaft and tapped a ball joint separator between two but it still didn't drive them apart. In the end I left them stuck together and moved onto the ring gear. Here is the end result of my efforts:
[Linked Image]
[Linked Image]