Combines hyd oil seeping from rotor motor mount

Its probably just an o-ring,I had the same thing,easy to replace.

Thanks for the reply. When you replaced the o-ring did you do any other work to itIJ There most be bearings and gears in there, whats your thoughts on replacing the bearings at leastIJ CostIJ Thanks

If there is any movement side to side and up and down at rotor motor then there is other problems. If not there is one 0 ring between motor and planetary on high speed planetary and 2 on high torque slow speed planetary and then there are two in planetary. Good luck Swtvid