hyd steering problem

[obxer]

I installed an upper station on my boat using a Sea Star and everything works just fine till I get up to speed. Then turning to the right gets screwey. Most times it takes 6 0r reveloutions of the wheel before the steering picks up and turns the boat. sometimes it works ok for a few turns. Turning to the left works fine. Turning at a slow plan or off plane works fine. No sign of fluid leak. Ran a compensation line and have a vented fill cap on the top. Blead it again yesterday, same problem. Any ideas?? Thanks

[welder]

You have Air in the system, you need to bleed it again and take your time doing it.

[Chisox]

Dual station installs, as well as dual cylinders, take a LOOONNNGGG time to bleed. Be very patient. When properly bled, any movement of the wheel will cause the motors to move. If this isn't the case, bleed again. Time consuming, yes. But, in reality, it allows you to have a few more brewskis!

[Cuzwecud]

I agree with 250 Osprey & Welder....Bleed em good!

[thudpucker]

Can you use an automotive Vacuam pump to bleed those lines. Similar to bleeding Hyd Brake lines in a Car.

YOu attatch the vacuam pump at the remote, highest part of the system and pull vacuam till no more air comes through.

[OReely]

Generally, if there is air in the system the steering will be mushy in both directions and all speeds.

You say the problem is only when you turn right at speed. Is it only in the upper station or at both the upper and the lower? If it's only at the upper it may be a problem with the helm pump. There a small valves that open and close on demand and if you get some contamination in the system it may not allow the valves to operate correctly.

[noelm]

correct, air in the system does not only affect one way, you have a problem, what it is will require some fooling around (or a trip to the shop) any dirt at all in the oil/system will be diaster and can cause symptoms similar to what you mention, but it is very difficult to fully clean out the entire system.