Yanmar 6LY3 series - Injection Timing Control Diagram

FUEL SYSTEM
Electronic Control System
12/05
6LY3 Service Manual
6-39
© 2007 Yanmar Marine International
Injection Timing Control Diagram
Injection timing is controlled as a timer phase, which is the torsion angle between the pump camshaft and
pump drive gear. The ECU injection timing control diagram is shown in Figure 6-49.
Figure 6-49
Figure 6-49
Input
Output
Coolant
temperature
Rack position
Crank speed
Cam speed
Timer solenoid
(Advance)
Timer solenoid
(Retard)
Timer phase
target cal.
Timer phase
control cal.
Engine load
cal.
Timer phase
cal.
Rack position
Speed
Rmax
Ridle
Engine
load =100%
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