Injection Timing Control Diagram - Yanmar 6LY3 series Service Manual

Electronic Control System
12/05

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
Coolant
temperature
Rack position
Crank speed
Cam speed
6LY3 Service Manual
Engine load
cal.
Timer phase
target cal.
Timer phase
cal.
Figure 6-49
© 2007 Yanmar Marine International
Rmax
Engine
load =100%
Ridle
Speed
Timer phase
control cal.
FUEL SYSTEM
Input
Output
Timer solenoid
(Advance)
Timer solenoid
(Retard)
0005713
6-39