Yanmar 6BY2 - Page 8

TABLE OF CONTENTS
viii BY Service Manual
© 2009 Yanmar Marine International
Repair.............................................................................................. 9-6
Remove Turbocharger ............................................................. 9-6
Install Turbocharger ................................................................. 9-6
Starter Motor...................................................................................... 10-1
Safety Precautions ........................................................................ 10-3
Introduction.................................................................................... 10-3
Starter Motor Specifications .......................................................... 10-3
General Specifications ............................................................ 10-3
Special Torque Chart .............................................................. 10-3
Starter Motor Troubleshooting....................................................... 10-4
Remove and Install Starter Motor.................................................. 10-5
Alternator........................................................................................... 11-1
Safety Precautions ........................................................................ 11-3
Introduction.................................................................................... 11-4
Specifications ................................................................................ 11-4
General Specifications ............................................................ 11-4
Special Torque Chart .............................................................. 11-4
Repair............................................................................................ 11-5
Replace Alternator Belt ........................................................... 11-5
Remove and Install Alternator................................................. 11-5
Remove and Install Alternator Belt Tensioner......................... 11-6
Electrical and ECU ............................................................................ 12-1
Safety Precautions ........................................................................ 12-3
Introduction.................................................................................... 12-3
Specifications ................................................................................ 12-3
Special Torque Chart .............................................................. 12-3
Function Description - Engine Management System .................... 12-4
Component Locations ............................................................. 12-4
Electrical Panel Connector (X1) Connections ......................... 12-8
Engine Control Unit (ECU) Assignments............................... 12-10
Component Tests........................................................................ 12-12
Relays ................................................................................... 12-12
Oil Pressure Sensor .............................................................. 12-14
Fuel Injector........................................................................... 12-14
Engine Coolant Temperature Sensor.................................... 12-15
High-Pressure Fuel Regulator............................................... 12-15
Water-in-Fuel Sensor ............................................................ 12-16
Crankshaft Speed Sensor ..................................................... 12-16
Glow Plug / Control Unit........................................................ 12-17
Fuel Temperature Sensor ..................................................... 12-18
Fuel Volume Regulator.......................................................... 12-18
Charge Air Temperature Sensor ........................................... 12-19
Charge Air Pressure Sensor ................................................. 12-19
High-Pressure Fuel Rail Pressure Sensor ............................ 12-20
Camshaft Speed Sensor ....................................................... 12-20