On a slightly related note I just recently picked up a Thomas 'Steam and Sound' loco in a batch of loco's in need of a bit of tender care (for a very reasonable price of course). While I've fixed the other two loco's I've got a slippy gear on Thomas and I'm trying to figure out how to get the engine assembly out to no avail yet. Does anyone know what to undo/remove to get the motor unit out so I can get to the drive axle? 