Hi all, new to this so please be gentle.
We have a Scimitar with the Cummins diesel conversion in pretty good condition, but the starter motor won't push its cog out onto the gear ring. When we toggle the starter, there is a healthy thunk indicating the relay is switching, but nothing else. When you manually lever the cog out onto the ring gear, the starter motor spins and the engine starts nicely.
There is a "low power" circuit in the starter motor which is supposed to throw the cog out to engage, then this closes a circuit which provides full power to the starter motor to start the engine.
There are 3 inputs, one large which I assume is the main +ve for powering the starter motor, and 2 others which I don't understand.
Suggestions/help gratefully received.