I did in my second spur gear today and this time it wasn't meshing that was the issue.
For some reason the middle of the spur gear has rounded off so it spins on the shaft and is no longer tight fit.
The slipper plates have also cut into the sides of the spur gear, although the pucks seem okay (unlike last time when they were noticeably warped and blackened in parts).
I guess what has happened this time is that the slipper was too loose and it slipped loads, to the extent that it also rounded the centre of the spur gear.
Of course, now, even with the slipper tightened right up the car won't run under significant load from the motor because the slipper shaft just spins within the spur gear (or the spur gear spins around the shaft as it is driven by the motor - but doesn't engage and drive the belts as it is rounded).
Clearly the slipper setting is absolutely crucial and if I notice any slippage during the run (today it was slipping most of the way on the straight as I accelerated) I should come off and adjust immediately.
Can anyone confirm, correct or embellish upon my experience here?
Thanks (and Happy Birthday to me!)
