Did you get to bottom of your oil leak?i ended up pulling the same motor out,rebuilding including bearings,pistons,sleeves and new shims..only for it to leak six months later,so I pull motor out again redo crank end play run around in workshop for a week without a drop,give it back to customer and its pouring out 5mins after he jumps on it.......what the ****..these motors are a headache