Reply To: 2000 Johnson 50hp 2 stroke questions.

[jeff-register]

There are single & double acting cylinders. Sounds like yours is single acting, pumps the cylinder rod out of the cylinder & gravity compresses the rod back in. A double acting cylinder pumps up one side & drains the other side. When stopped pressure is kept on either side of the ram to hold position. Like Don said, valving or ram O-ring leaking causing pressure bypass. I’ve seen O-rings get soft & flip in the bore as travel happens. Every time it dumps fluid to the other side of the ram. That would make down travel slow too as it’s having to bypass fluid again.