Further information on QM gearboxes.... I sat down and waded through all the parts
diagrams for the Q series Yanmars. What I've concluded is that the 3QM30, the 2QM and 3QM share common gearboxes and bell housings etc. The 2Qm20
has its own unique bellhousing but there are also two variations of the of the KBW10 gearboxes, or at least the cases are different. One has ribs at 90 degrees to shaft and the other on same plane.The 2QM15 which I have requires a unique bell housing (transmission flange) which mates the KBW10 to the engine
. So my next challenge is to find the right part 177080-02030. Any leads will be much appreciated (in Aus or NZ). Would consider bell-housing and gearbox
or just bell-housing.