main hinge pin is seized in up position, with nothing connected, i can barely force it down even with the relief valve open? what iws a suggestion to free it up? Thanks
Assuming you are talking about the pin that allows the engine to tilt up or down? Regardless, if it’s based upon corrosion then you’ve got a dilemma as such corrosion is quite stubborn. One option is repeated heat and cold break up the corrosion. That can help but here is a WTF solution if room exists. Clean as much corrosion as possible where threads are accessible then heat that area with a torch... then while hot drip melted candle wax over the threads. Let it cool and repeat. I know sounds crazy but it just worked for me when separating a lower unit in an older outboard. Found this in an old timers site. Best wishes!!