I have a power tilt and trim unit with a ram (cylinder) that is leaking. It is the older style Mercury external 2 ram unit on a 1980 70 hp. The leak is at the piston rod and the cylinder retainer. It occurs in both the up or down positions however it is not affecting the position of the motor when in the up position. I suspect that the slipper seal and piston are okay. My plan is to replace all of the o-rings except the slipper seal since I am not losing any motor positioning.
My question is, can I replace the o-rings without removing the piston from the liner by removing the bolt that attaches the rod and piston and leave the piston in the liner. I understand that re-installing the piston in the liner is difficult and may require a special tool.
I appreciate any input from anyone who may have expertise with these types of cylinders. Thanks for your help.
My question is, can I replace the o-rings without removing the piston from the liner by removing the bolt that attaches the rod and piston and leave the piston in the liner. I understand that re-installing the piston in the liner is difficult and may require a special tool.
I appreciate any input from anyone who may have expertise with these types of cylinders. Thanks for your help.