I need to service the gearbox oil in my K9B engine, but having never done it before in this engine, and being unable to find any kind of a service manual, I have some questions:
1) what do I fill it with?
2) how much?
3) which plug is the fill plug? Do I use the “vent” hole? What about the two screws on the side by the clutch plates – are either of them significant – or are they just holding the case halves together?
4) is there a level screw (fill till it spills)?