HOME and how to join Forum Open Area General Scott topics Advice please – gearbox or engine problem??? Reply To: Advice please – gearbox or engine problem???

Colin Hough


Thanks for the comments – my reaction is that Brian is probably right in that it was a tight gearbox shaft bearing. It also appears not to be the engine.

As it turned over OK after freeing up, I have tried kicking it occasionally over the last couple of days and each time it has turned over easily – I therefore expect that it was a bearing freeing (rather than being a broken tooth which would give a problem when it next lined up).

Concerning oil for the gearbox I used SAE 40 engine oil as the Book of the Scott says “Lubrication of the Three-speed Gear Box. This is designed for lubraiction with the same oil as used in the engine, and thicker oil is not advised”. I therefore assumed tthat SAE 40 was the closest to engine oil of the 1950’s.