Boat Repair: Steering Issue, sterndrive engineering, cavitation plate

31 Янв 2014 | Author: | No comments yet »
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Boat Repair / Steering Issue

Expert: Al Doyle — 6/2/2006


Followup To

Question —

Hi Al,

I own a 1989 Sea Ray 160 with a 3.0 Mercruiser (3rd owner). Along with an extensive tune-up, I’ve recently had a Sterndrive Engineering outdrive installed and the boat, since Mid-April has been running great. During the Memorial Day weekend I began experiencing a steering problem such that when I release the wheel the boat will take an immediate left turn. As an aside, I’ve not noticed any performace related problems with the boat, ie. trim, throttle. At this point, I am not sure what to look for to tell if something is damaged. Any assistance that you could provide would be greatly appreciated. My son is anxiously awaiting the point in time in which I can begin to pull him on his wake board. Thank you in advance for your help.

Rinker 232 Captiva

Answer —

Darrin, If your engine does not have power steering then most likely you have a trim fin (torque tab) out of adjustment. This is the little fin that extends below the cavitation plate. it is designed to counteract prop torque. It is adjusted with a 3/8 allen wrench through the little hole above it. The rule of thumb is if the boat pulls right, then you move it to the right. it will take a few small adjustments and test runs to get it right. Did you purchase your SEI unit from us (dockpartner)? The name sounds familiar. If so please let me know how it is working out for you.

Hi Al, Yes, I did purchase my SEI outdrive from Dockpartner sometime in late March or early April. What a coincidence! The boat/outdrive have been operating/running great. My boat does have power steering. Is this something to focus on? The steering tab has been in the same position since install. If no prior steering issues why would the tab suddenly need to be adjusted? Could the beaching issue be a problem? Nothing appears to be out of order/damaged and it runs great! Do I need to worry about the drive, gimble etc. Thanks for your time recommedations thus far.


Maybe your power steering is not working as it should. Normally, the power steering will hold the drive in place and not allow prop torque to steer the drive. if your power steering is not working properly (out of fluid perhaps) then prop torque will take over. This does not sound at all like a problem with the engine, drive, universals, etc. When the boat is at the dock with the motor running, is the steering easier one way compared to the other?

Rinker 232 Captiva
Rinker 232 Captiva
Rinker 232 Captiva
Rinker 232 boat
Rinker 232 boat

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