GENERAL SERVICE INFORMATION
Engine Piping Diagrams
3-8 BY Service Manual
© 2009 Yanmar Marine International
ENGINE PIPING DIAGRAMS
4BY2
Figure 3-5Fuel Flow
Figure 3-5
1 – Fuel Inlet from Tank
2 – Fuel Fine Filter
3 – Fuel Feed Pump
4 – Inlet Fuel Temperature Sensor
5 – High-Pressure Fuel Pump
6 – High-Pressure Fuel Supply Line
7 – High-Pressure Fuel Common Rail
8 – Fuel Injection Line
9 – Fuel Injector
10 – Fuel Injector Return Hose
11 – Common Rail Return Line
12 – Return Fuel Tee with Back Pressure Valve
13 – Return Fuel to Fuel Tank with Over Pressure
Valve
14 – High-Pressure Fuel Rail Pressure Sensor
15 – High-Pressure Fuel Regulator
(ECU-Controlled)
16 – Fuel Volume Regulator (ECU-Controlled)
0006494
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