Tilt ram cylinder cap/top thing. 1986 Mercury 75hp. I have a cheapo adjustable pin spanner wrench, but it’s not cutting it. Need to get these new seals and o-rings in there. Help!
That cap has been on there a long time. The threads can corrode pretty solid. A good spanner and a tap of the hammer may be required to break it loose.
You might see what a new one costs, in case of trouble.