Yanmar 6LY3 series - Timer Phase Detection

FUEL SYSTEM
Electronic Control System
6-40 6LY3 Service Manual
© 2007 Yanmar Marine International
Timer Phase Detection
The timer phase is detected by two pulsar gears (Figure 6-50) and is calculated by the ECU from the
deviation of two pulses. The pulsar gear of crankshaft is located on the flywheel.
Figure 6-50
Figure 6-50
Timer phase detection
Top pulseTop pulseTop pulse
Crank
pulse
Cam
pulse
360°
Crank angle
0°-360°
12 pulse
12 +1 pulse
Cam gear
Crank gear
Pulsar gear
0005714