Four winns 358 VISTA, Owner'S Manual

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Owner’s Manual Page 71 Steering Systems - Section G
effort is not reduced to a level where it can be
wheeled “lock to lock” without a concen trated turning
effort.
Ste ering ef fort can vary sig nifi cant ly with
en gine ac cel era tion, stee ring an gle, trim an gle,
and sea condition. Be prepared for additional
steering loads at all times.
G - 3 RUDDERS - Inboard Models
On inboard models, the dual V-drives have two
rudders. These are coupled together at the tiller arms
by a tie bar. The rudders are toed-in at the front to
provide maximum stability on straight ahead runs and
proper tracking through corners. Rudder alignment is
preset at the Four Winns factory. Further alignment
adjustments should not be necessary unless the
rudder or steering system incurs damage. See
Figures G-2, G-3, & G-4.
Rudder Alignment Procedures:
1. Dimension A must be 1/2” to 3/4” larger than
dimension B.
2. Dimension A & B must be measured between the
inside faces and at the bottom of the rudders.
Figure G--2: Rudder Alignment Specifications
G - 4 RUDDER ANGLE/POSITION
INDICATOR
A rudder angle/position indicator is a device that
indi cates the location of the rudders relative to the
straight ahead position. Such a unit is provided on
the inboard Vista
®
models and consists of a gauge
on the dash and an electrical sending unit connected
to a rudder tiller arm or the steering assembly.
See Figures G-2 & G-3.
The reading on the gauge can be adjusted by loosen-
ing the three screws securing the electrical sending
unit and turning the sending unit either clockwise and
counterclockwise slightly. The reading will vary
accordingly.
Figure G-3: Hydraulic Steering
G - 5 PROPELLER TORQUE
The propeller rotation of a single engine operation will
exert a directional force on the steering sys tem. This
can cause the steering to be harder in one direction
than the other, and is called propel ler torque.
Propeller torque can also cause the boat to wan der
(not follow a straight line) when operat ed at low
speeds. This condition is normal and can be corrected
only by increasing engine rpm. Wind, water currents
and play in steering compo nents can cause equivalent
effects.
G - 6 STEERING SYSTEM MAINTENANCE
A periodic inspection of all stern drive steering cables,
linkage and helm assemblies should be made. With
inboard models a periodic inspection of the helm
pump and reservoir, hydraulic hoses, the hydrau lic
cylinder, tie bar assembly, bearing, seals, rudder
angle sender and rudder should be made. See
Figures G-4 - G-6. Signs of corrosion, cracking,
loosening of fastenings, excessive wear, or deteriora-
tion should be imme di ately corrected. Failure to do so
could lead to steering system failure and correspond-
ing loss of control.