Governor System - Westerbeke 12C-TWO Operator's Manual

GOVERNOR SYSTEM
Leaving the dial gauge set, its condition unvaried, depress the
spring stopper and slide over the torque spring set support
spring case. Read the deflection of the dial gauge which cor-
responds to the projection of the spring stopper from the
spring case (Measurement should be made repeatedly for an
accurate measure). For the models which do not require any
torque spring action, set the projection to a value in the range
ofO to -0.4.
After making the adjustment tighten the locknut to a torque
of 5.8 - 9 ft-lb (0.8 - 1.2kg-m).
TORQUE SPRING SET
SEALING CAP
Tum in this Torque Spring
Set until the engine's speed
drops about 50 rpm from
high idling speed.
(STAKE AFTER SETTING)
Adjust to specified
number of loosening
tums:
=2.2 TURNS
SPECIFIC
TORQUE SPRING SET
NOTE:
The illustration shows the early version of the Torque
Spring Set. The current version is a solid unit.
25
TORQUE SPRING SET INSTALLATION
NOTE:
This adjustment is done at engine overhaul with no
generator installed or with the leads removed from the
generator capacitor.
Use the following procedure to install and adjust the Torque
Spring Set.
1. Set the speed control to the high idling speed (3200 rpm)
position by adjusting the high speed set bolt.
2. Tum in the torque spring set until the engine speed drops
about 50 rpm from the high idle speed.
3. From this position, tum back the torque spring set by the
specified number of turns (N). Lock the torque spring set
at that position with the special nut.
N = 2.2 turns
4. Install the torque spring set sealing cap and stake the cap
to prevent further loosening.
FUEL RUN SOLENOID
The fuel run solenoid is mounted on the engine block aft of
the fuel injection pump. The solenoid's plunger pushes
against the fuel rack on the fuel injection pump. When this
solenoid de-energizes, it shuts down the engine. See
ENGINE ADJUSTMENTS for assembly instructions.