95 110hp Evinrude Model E115LEOC 60 degree I had the lower unit molested by a manic,two gears and the pinion were trashed teeth stripped off. The lower unit was rebuilt, the power trim didn't work when I got it back and now I have checked the grease in the lower unit and there is fine metal shaving in it. I am of the belief that I should probably flush the lower unit with diesel fuel and then put fresh grease in it. I pay cash for all my work immediately upon completion and I have become totally disgusted with quality of work that I have received on my boats, having owned about 14 so far, I had hoped that this would be the last, so I am treating it a little better than I did my first wife. This is terribly frustrating for me to pay someone to fix my stuff and get it back with a shade tree job, at a professional high quality rate of pay.(125.00 per hr) I think I will buy a service manual and do it myself, it ccannot get much worse. The question: do I flush the lower unit, can I use it maybe once before I do?