"Jim" wrote in message
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"Eisboch" wrote in message
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"HK" wrote in message
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Who told me that? A "techie" guy on a real boating discussion board, who
backed up what he said with a quote from the manual.




Your "techie" is full of it.

Hydraulic systems are capable of very fine and repeatable positioning due
to the non-compressibility of the fluid.
They are used often over cable or pneumatic systems when fine
positioning control is required because they overcome the "sticky" nature
of pneumatics and the stretching of cables. In the business I was in we
used air over oil hydraulic systems to precisely move and locate 500 lb
objects to within thousands of an inch.

If the hydraulic steering system has not been purged of all air, or if
there is a leak, I can accept the helm position non-repeatability. But,
if leak-free and purged of all air, it should be perfectly repeatable.

It's the cross wind.

Eisboch

To be sure, if you see Krause's name anywhere in a thread, you will be
seeing a lot of horse **** being thrown around.
Cross wind will cause you to have to adjust helm position to maintain a
straight course but I don't think that is the complaint. the issue is that
when the boat is at rest and the engine is centered, the wheel position
has changed from it's original position.
I just took a peek at the Sea Star Web site. It seems there check valves
and pressure relief valves built into the system. A leak in a check valve
or operation of a pressure relief valve could be the cause of what these
guys are seeing. No? Not to mention seal leakage. I don't think these are
precision devices like the ones Eisboch is used to dealing with. The
subject has been beat to death and if anyone doesn't like the fact that
the suicide knob wont stay at 11 O' Clock, they should contact Teleflex
for relief. Or they could have Eisboch's old company design and build a
precision $500,000 helm.

Sorry, banana breath, but there's no good reason for a new hydraulic
steering system to leak or suck in air. check valves or not.
Cost is not an issue.

Eisboch