Thanks in advance to anyone who can help a Mercruiser novice solve a trim problem:
Equipment: 1977 Sea Ray Cuddy with Mercruiser 888 (Ford 302) with Alpha outdrive; 3-button trim system with Arco trim pump motor;
Problem: Trim works perfectly going up, does not work at all going down (and I've tested this in the water and on a trailer, with the engine running and without). Trim motor itself appears to be working OK (judging by the correct sounds it makes) in both directions. After trying to operate the trim downward, I noticed some fluid leaking from the base of the port-side cylinder.
What I've done so far: cleaned all electrical connections, made sure that pump is full of hydraulic fluid, with the trim in the full "up" position;
Possibilities: Can the leaking cylinder be repaired, as opposed to replaced? If so, how involved is that repair job, and would I need any special tools or abilities? Is there a way to test the system with only the one non-leaking cylinder?
I've tried to provide as much detail as I can, but please post questions if it will help someone out there give me some advice on what to try next.