85hp Power Trim/Tilt Sinking Feeling

[rodsailor]

I have read all the posts that I can find, and searched this site and the web, and I cannot find a source for the valve body parts, much less a parts diagram showing what the parts are. If anyone knows a source, please let me know.

From looking at the diagram in the Seloc manual, it appears there are two poppet valves, probably relief valves related to the transition from the trim to the tilt cylinders. There are also three ball type check valves, which I assume are the source of the problem.

Can I disassemble the valve body without removing the electric motor/oil reservoir? From what I see, pulling the motor means taking it apart, and I don't want to break something that is working.

Also, can I drain the cylinders of all oil, so that when I put the thing back together, I know that there is less crud in the system. If I drain the cylinders, how do I refill the system? I would assume that I put some oil in the reservoir, run it into the cylinders, repeat ad nauseum until the system is filled, then purge out the air by running it up and down with the fill plug out. Is this right, or am I missing something?

Rod

 

[RRitt]

Re: 85hp Power Trim/Tilt Sinking Feeling

the only part for sale is F17620. It is a retaining ring style check valve. Any other parts will need to be cannabalized from known good pumps.

You can not rebuild it without removing from motor.

The average home mechanic has less than a 50% chance of being able to put his pump back together, even lower that it will work, and even lower again that it won't come apart. It is not a very good DIY project.

However, if you don't lose the slider piston, don't strip out any threads, and don't lose the gears then it can always be fixed.