Seastar Pro is for high-performance boats with single non-power-assisted
outboards up to 300 HP, especially those capable of speeds over 60 MPH, which
demand maximum steering control and comfort. Suitable for use with
high-performance propellers and jack plates.
Patented steering lock valves
Low friction hydraulic steering system
4.25 turns lock-to-lock
Compact helm with a 4-7/16" footprint, needs only 3" dash hole
Packaged with helm, cylinder, fittings, oil, bleeder kit, cut-to-fit tubing, and
detailed instructions
Standard 3/4" tapered steering shaft
Model
SeaStar Pro Steering Kits Gen. 4
The package include
HH5770-4 Front Mount Helm pump
HC6345-4 Pro Front Mount Outboard Cylinder
HA5430H Hydraulic Steering Fluid Qty 2
Single Engine Applications
|
ENGINE
Manuf. |
Year
|
Model
|
Cylinder
|
Notes |
FORCE |
1985 TO DATE |
90-150HP |
HC5345 |
|
|
HONDA |
1996 TO DATE
1998 TO DATE
1998 TO DATE
2001 TO DATE
2003 TO DATE
|
75-90HP
115-130HP
30-50HP
135-225HP 4-STROKE
BF135HP |
HC5345
HC5347
HC5345
HC5345
HC5345 |
See Note 1
|
|
JOHNSON /
EVINRUDE |
1977 TO 1990
1988 TO 1997
1991 TO DATE
1996 TO DATE
1998 TO DATE
2000 TO DATE
2002 TO DATE
2005 TO DATE
|
65-300HP
250-300HP V8
40-250HP
75-250HP FICHT
40-140HP 4-STROKE
115HP FICT
200-225HP 4-STROKE
E250 DPX VINDICATOR |
HC5348
HC5342
HC5345
HC5345
HC5358
HC5358
HC5345
HC5348
|
Inc. ETech Engines
See Note 1
See Note 1 |
|
MERCURY |
1984 TO 1994
1989 TO DATE
1996 TO DATE
1998 TO DATE
2003 TO DATE
|
2.4/2.5HP EFI
75-300HP
75-225HP 4-STROKE
30-60HP
250-300HP XS |
HC5345
HC5345
HC5345
HC5345
HC6345 |
See Note 2
See Note 1
See Note 3 |
|
NISSAN |
1990 TO DATE
|
90-140HP
|
HC5345
|
|
|
SUZUKI |
1986 TO DATE
1986 TO 2002
1986 TO DATE
1996 ONLY
1998 TO DATE
2003 TO DATE
|
100HP
115-140HP
150-300HP 2 & 4 STROKE
115-140HP
40-140HP 4-STROKE
90HP 4-STROKE |
HC5345
HC5345
HC5345
HC5348
HC5358
HC5358 |
NOT 1996
See Note 1
See Note 1 |
|
US MARINE |
1996 TO DATE |
90-120HP |
HC5345 |
|
|
YAMAHA |
1990 TO 2003
1986 TO DATE
1997 TO DATE
2000 TO DATE
2002 TO DATE
2003 TO DATE
2007 TO DATE
2010 TO DATE
|
40-90HP
100-250HP 2-STROKE
80-225HP 4-STROKE
150-250 HPDI
300 HPDI
25-60HP 4-STROKE
F300–F350
70HP 4-STROKE
|
HC5345
HC5345
HC5345
HC5345
HC5358
HC5348
HC5345
HC5348
|
See Note 5
See Note 5
See Note 1
See Note 4 |
|
YANMAR |
1994 TO DATE |
90-120HP |
HC5345 |
|
|
NOTES: |
1. |
Requires kit HO5090. |
2. |
May require extensive cowling modifications. |
3. |
MUST use High Strength Tiller bolt, part # HA5822.
Refer to the NOTICE below identifying the high strength bolt. |
4. |
Optional
cylinder part # HC5358. Slight interference may occur when
using the HC5358, with the engine in the full tilt position. |
5. |
Cylinder part #
HC5358 may also be used in these single engine applications. |
|
|
Revision
Date: June 29th 2010 |
|
|
High Strength Tiller
bolt, part# HA5822.
ALL cylinders shipped after June 1st, 2007 will have this bolt
included in the cylinder package. |
|
How it Works
The SeaStar
Hydraulic System
High-horsepower/high-speed boating is here and steering systems must perform
at maximum capacity. The SeaStar Hydraulic Steering System is designed to
provide that extra margin of muscle when needed and easily handles Outboard,
Sterndrive and Inboard engines in boats up to 50 feet.
System selection,
installation and service is substantially simplified with just three major
components – helm, cylinder and tube or hose. SeaStar has a comprehensive
range of available cylinders to handle a variety of Outboard, Sterndrive and
Inboard steering applications. These are suitable for both pleasure and
commercial applications. Extra steering stations and/or autopilots are easily
added.
SeaStar hydraulic
steering is a total commitment to quality, performance and simplicity.
SeaStar, the
hydraulic steering system that is:
Easy to
install…
Only three components: helm, cylinder & tube or hose
Compact and attractive helm design
Variety of helm mounting configurations
Simple tube/hose fitting connections
Clear, complete installation instructions
Easy to fill
and purge…
Engineered bleed fittings on the cylinders
A helm and lock valve design that enhances air removal
A no-mess filler device
A filling and purging time of normally less than 30 minutes
Easy to check for proper installation
Easy purging check via filler device
No searching for difficult-to-find air leaks
Easy to turn…
Anti-friction piston points
Designed to
provide many years of service…
Precision built
Heavy-duty bearings instead of bushings
All metal construction
No corrosive materials exposed to marine environment
Field replaceable helm and cylinder shaft seals
A no-hassle warranty – 2 years for pleasure use – 1 year for commercial use
System Components
SeaStar manual hydraulic steering systems are simple and efficient. The basic
system consists of three main components:
1. the helm pump,
2. the cylinder, and
3. the hose or tubing required to connect the cylinder to the helm pump.
These basic components are necessary in all applications. However as the system
variables increase (e.g.: multiple engines, rudders, steering stations and
autopilots), additional components may be required.
1. The Helm Unit
The SeaStar
helm pump is an axial piston pump specifically designed for manual steering. It
has a built-in lock valve to prevent the steering load from feeding back to the
driver. The lock valve will not allow the rudder or drive unit to move until you
move it with the steering wheel. The lock valve section of the helm also
includes a relief valve. This relief valve provides over-pressure protection for
mechanical components and hydraulic hoses and fittings.
2. The Cylinder
The most
important differences between the variety of SeaStar steering systems available
is the cylinder selection. The SeaStar system has a cylinder for most steering
applications.
3. Hoses and
Tubes
Required to
provide a path for the fluid to flow under pressure from the helm pump to the
cylinder.
How it Works
The SeaStar system is a two-line system. This makes operation very simple
1. The steering wheel, which is attached to the helm pump, is rotated in
the desired direction (i.e.: a turn to starboard or clockwise rotation).
2. Oil is pumped out the corresponding port from the rear of the helm into
the starboard line and then into the cylinder.
3. This causes the cylinder rod, which is attached to the vessels rudder
or drive unit, to move (i.e.: rod moves to port) thus causing the vessel
to alter course.
4. Oil displaced from the opposite end (i.e.: the port end) of the
cylinder flows (i.e.: into the port line) back to the helm pump.
5. For steering in the opposite direction, simply turn the helm the other
way.
6. When no course corrections are required, the integral lock valve holds
the rudder or drive unit stationary.