1981 galixy merc l6 1978 , havent started motor in 8wks last time it ran just fine no problems,today was going to go out so hooked muffs up, started motor no oil presure,ran motor about 45 seconds hoping for change,gauge started to move a very little bit but never got past 5lbs if that. while it was stored i had bow raised up high and drain plug out , to keep water out . is there any glimmer of hope left or is pump shot? thanks for looking, george.