6LPA Service Manual
6-1
© 2007 Yanmar Marine International
6LPA Service Manual
Section 6
FUEL SYSTEM
Page
Safety Precautions .......................................................................... 6-3
Introduction...................................................................................... 6-4
Specifications .................................................................................. 6-5
Test and Adjustment Specifications .......................................... 6-5
Special Torque Chart................................................................. 6-7
Fuel Injection Pump Specifications............................................ 6-8
Fuel Filter Replacement ................................................................ 6-10
Fuel Injection Nozzle ..................................................................... 6-12
Components ............................................................................ 6-12
Fuel Injection Nozzle Removal ................................................ 6-14
Fuel Injection Nozzle Testing .................................................. 6-15
Fuel Injection Nozzle Components.......................................... 6-16
Fuel Injection Nozzle Disassembly and Inspection ................. 6-17
Fuel Injection Nozzle Adjustment ............................................ 6-18
Checking No. 2 Opening Pressure .......................................... 6-23
Adjusting No. 1 Opening Pressure .......................................... 6-25
Fuel Injection Nozzle Installation ............................................. 6-25
Fuel Injection Pump....................................................................... 6-28
Components ............................................................................ 6-28
Fuel Injection Pump Removal.................................................. 6-29
Components ............................................................................ 6-30
Fuel Injection Pump Installation............................................... 6-34