Rudders - Inboard Models; Rudder Angle/Position Indicator; Propeller Torque - Four winns 248 Vista Owner's Manual

age operating speed range and general rudder/outdrive
position. This is an advantage when the boat is on plane.
This can be somewhat of a disadvantage at lower speeds
in that the steering effort is not reduced to a level where it
can be wheeled "lock to lock" without a concentrated turn-
ing effort.
Steering effort can vary significantly with engine
acceleration, steering angle, trim angle, 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 G2, G3, & G4.
Rudder Alignment Procedures:
1. Dimension A must be 1/2" to 3/4" larger than dimen-
sion B.
2. Dimension A & B must be measured between the
inside faces and at the bottom of the rudders.
Figure G2: Rudder Alignment Specifications
Vista™ Owner's Manual
™
G - 4

RUDDER ANGLE/POSITION INDICATOR

A rudder angle/position indicator is a device that indicates
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 elec-
trical sending unit connected to a rudder tiller arm or the
steering assembly. See Figures G2 & G3.
The reading on the gauge can be adjusted by loosening
the three screws securing the electrical sending unit and
turning the sending unit either clockwise and counter-
clockwise slightly. The reading will vary accordingly.
Figure G3: Hydraulic Steering
G - 5

PROPELLER TORQUE

The propeller rotation of a single engine installation will
exert a directional force on the steering system. This
can cause the steering to be harder in one direction than
the other, and is call propeller torque.
Propeller torque can also cause the boat to wander (not
follow a straight line) when operated at low speeds. This
condition is normal and can be corrected only by increas-
ing engine rpm. Wind, water currents and play in steer-
ing components can cause equivalent effects.
Section G
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