Thanks for the complement Kcassells!
Today I rebuilt the trim / tilt rams. I found a pretty good video on YouTube about them. He showed breaking them down, but not really the putting back together part. I used a full kit, including the seals, pressure tube and new valve body. I wouldn't try to reuse the valve body, but you can get a kit without it. I wish the video would have shown how to install the valve body....Mercrusier's instructions were detailed except for the valve body. You have the ram the body goes in a vice, vertical position for this operation. Valve goes on the very top. The directions are something like this:
- Hold valve body upright and carefully remove the bolt nut and lower washer that are holding it together (its shipped with a bolt washers and nut that secure the springs and check valves)
- B find the TINY spring and check ball, that we didn't mention, that falls out the bottom. Do this while trying to keep the other springs and check balls in the top from falling out. Once you find said tiny spring and ball, try to figure out which of the 6 holes it fell out of. Reinsert spring and check ball, proceed on to next step.
- Place sealing washer under tiny spring, check ball and valve body. Install over stud on ram.
- Install lock nut and torque to 8-10 ft lbs.
I added step 1.B by the way.....second one was easier after I figured out to hold it sideways, place the sealing washer on it, with the bolt still in it, then slide it over the stud. Sorry I didn't get a lot of shots, it was just an oily mess. I was trying not to hose my phone.
Here are the new parts, valve body on the left.
This is they cylinder partially disassembled. It comes apart fairly easily.
You can see the valve body in this one at the end of the ram.
This part seals the cylinder where the ram and body slide. Both of them were fairly nasty. There are two o-rings inside the body that seal the assembly from the outside elements. The outer O-ring on both cylinders was toast.