old style Tilt (and trim?) for 1978 Merc 1150 inline 6 has blown another gasket o-ring same one as before). I was playing with what I thought was the trim on this motor (underway), and nothing seemed to be happening. later, when trying to raise the motor to put on the trailor, motor wont come up, and a quart of oil in the bilge. <br /><br />after the fact, I thought I remembered something I read in here about this being a tilt motor only, and that the engine locks on the trim bar when in gear. anybody confirm this? if thats the case, Im sure I blew the 0-ring trying to raise the motor against the locks. if its not the case, Ive got a recurring blown o-ring, and I cant see the reason. Also, am I supposed to turn the knob to release the pressure in the lines when out of the water? <br /><br />as usual, thanks. now, anybody want to come clean my bilges and carpet?