well, I know this it the price you pay for buying used boats. but here is my dilema! I got the motor out, FINALLY, with some hammer persuasion, now I am into the motor, pull of the valve covers. lots of good stuff, well, parts wise anyway. but on the pushrods and rollers rockers, there is surface rust!!!!!!!!!! yikes! recommendations???? can I just clean them up. the cam, crank, piston rods, ets., look all good. and no water in the oil!!!