Seastar Hydraulic Steering Locked

HLongcrier

Recruit
Joined
Jan 18, 2007
Messages
5
Took the Robalo out in a local river this weekend to check it out before heading to the coast. Glad I did! Boat has standard, front mount seastar helm connected to dual cylinder setup on twin 200hp 99 model Merc Optis. Steering was fine and in a flash it locked to port side. Wheel would turn and stop to left, but free spin to the right and motors would not turn and couldn't be turned by force to starboard. In essence, they were locked to port side. We checked fluid and it was low. We filled and got nothing. We released the port bleeder valve and forced motors to straight position. We used the throttles to limp to the ramp. After adding fluid to capacity and bleeding both valves we still had nothing. Wheel just freespins to right and makes a suttle clicking noise. Someone mentioned a "hung helm" but I have no experince with these systems. I looked at seastar site and still have no ideas. Doesn't appear to be any major leaks and fluid was making it to the cylinders, but still no steering and wheel just spins and spins when turning to the right. Any help will be greatly appreciated! Thanks! Also forgot to mention that boat also has autopilot and autopilot was being used at time that problem occurred. Perhaps the autopilot gear? Thanks again
 
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baitbucket1

Cadet
Joined
Mar 2, 2008
Messages
10
Re: Seastar Hydraulic Steering Locked

Try and disengage the auto pilot. It also could be air locked. Make sure you bleed all of the air out of the lines. This happened to me with a house boat and I did bleed the lines. I had no problems with this after it.
 

HLongcrier

Recruit
Joined
Jan 18, 2007
Messages
5
Re: Seastar Hydraulic Steering Locked

Thanks bucket. I think you're right. The hydraulic system is so simple that it seems that autopilot has to be the culprit. I'm guessing that the motor that pumps fluid has locked up. I'm going to try and disengage this motor/pump and see what happens.
 

tmitchell5188

Seaman
Joined
Mar 17, 2008
Messages
73
Re: Seastar Hydraulic Steering Locked

I have the same steering system, and mine is very hard to turn. I have a sport pilot autopilot on mine, which is external to the system. Did you fix yours? I'm going to try and rebleed mine and take off the autopilot.
 

tmitchell5188

Seaman
Joined
Mar 17, 2008
Messages
73
Re: Seastar Hydraulic Steering Locked

I found the problem with mine. It was my autopilot that caused the problem.
 

tmitchell5188

Seaman
Joined
Mar 17, 2008
Messages
73
Re: Seastar Hydraulic Steering Locked

Update: I sent mine back to raymarine and upgraded to a pump system. Much nicer than the sportpilot system
 
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