Hello, I have a 1978 80hp Mercury outboard without the power tilt and trim. I have to manually raise and lower the motor by hand....my question is, should it be hard to raise and lower the motor? it feels like the shock absorbers are not doing anything...i would think they would assist in raising and lowering the motor kinda like opening a hatch back or something...i dont see any oil or anything but these things are like 30 years old...i guess im just not sure if they are actually suppose to be hydraulic and assist or not...any help would be great thanks