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What is Hydraulic Outboard Steering & How Does it Work?

What is Hydraulic Outboard Steering & How Does it Work?

On boats, hydraulic steering is usually used with mid to high horsepower outboard motors.

The BSA Hydraulic Outboard Motor Steering Kit suits most outboard engines on the market.

Force Outboard Suitable Models: (Year 1985 onwards Force 90HP-150HP)
Honda Outboard Suitable Models: (Year 1992 onwards Honda 30HP-90HP), (Year 1998-2009 Honda 115HP-130HP), (Year 2001 Onwards Honda 150HP), (Year 2003 Onwards Honda BF135HP), (Year 2010 Onwards Honda 115HP-150HP)
Johnson / Evinrude Outboard Suitable Models: (Year 1977-1990 Johnson / Evinrude 65HP-150HP), (Year 1991 onwards Johnson / Evinrude 40HP-150HP), (Year 1997 onwards Johnson / Evinrude 115HP FICHT), (Year 1997 onwards Johnson / Evinrude 75HP-150HP FICHT), (Year 1998 onwards Johnson / Evinrude 40HP-140HP 4-STROKE)
Mercury / Mariner Outboard Suitable Models: (Year 1984 onwards Mercury / Mariner 75HP-150HP)
Nissan Outboard Suitable Models: (Year 1990 onwards Nissan 120HP-140HP)
Suzuki Outboard Suitable Models: (Year 1986 onwards Suzuki 150HP), (Year 1996 ONLY Suzuki 115HP-140HP), (Year 1987-2002 onwards Suzuki 115HP-140HP), (Year 1990-2000 onwards Suzuki 90HP-100HP), (Year 1998 onwards Suzuki 40HP-70HP 4-STROKE), (Year 2001 onwards Suzuki 115HP-140HP 4- STROKE)
Tohatsu Outboard Suitable Models: (Year 1990 onwards Tohatsu 40HP-140HP)
Yamaha Outboard Suitable Models: (Year 1998 onwards Yamaha 40HP-50HP), (Year 1998 onwards Yamaha 60HP), (Year 1986 onwards Yamaha 70HP-90HP), (Year 1997 onwards Yamaha 80HP-150HP 4-STROKE), (Year 2000 onwards Yamaha 25HP-60HP 4-STROKE), (Year 2010 onwards Yamaha 70HP 4-STROKE), (Year 1997-2013 Yamaha 115A 4-STROKE), (Year 2014 onwards Yamaha 115B 4-STROKE)
Yanmar Outboard Suitable Models: (Year 1990 onwards Yanmar 27HP-36HP)

Hydraulic steering systems use a lightweight hydraulic hose to control the steering. This offers larger or high-powered vessels a smooth, lightweight feel when turning the steering wheel. With fewer metal parts than a mechanical system, hydraulic steering has the benefit of being more resistant to corrosion. Hydraulic systems can deal with all torque conditions and may only require fingertip effort.

There are two main parts to hydraulic boat systems – the helm and the cylinder.

Helm – made of a hydraulic pump and valves. When the steering wheel is turned the pump is activated, and a swash plate presses on small piston pumps. The helm is responsible for converting the rotating motion of the steering wheel into a push-pull action on the cable. This cable directs the rudder to move left or right to steer the boat in the skipper’s desired direction. Most helms are rotary and use gears to move the rudder.

Cylinder – moves when fluid is pumped from the helm after the wheel is turned. The cylinder acts between two points on the outboard and doesn’t exert any force on the hull or deck. The cylinder is made up of a ram, bored cylinder and hardware.

Hose – hydraulic hose carries fluid from the helm to the cylinder and back.

BSA Hydraulic Outboard Motor Steering Kit on Sale from $795.95

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