Yanmar 6BY2 - Page 4

TABLE OF CONTENTS
iv BY Service Manual
© 2009 Yanmar Marine International
Tightening Torques for Standard Bolts and Nuts .......................... 3-23
Tightening Fasteners............................................................... 3-23
Hexagon Bolts and Nuts.......................................................... 3-23
Hose Clamps........................................................................... 3-23
Prepare Engine for Long-Term Storage........................................ 3-24
Abbreviations and Symbols........................................................... 3-25
Abbreviations........................................................................... 3-25
Symbols................................................................................... 3-25
Unit Conversions........................................................................... 3-26
Unit Prefixes............................................................................ 3-26
Units of Length ........................................................................ 3-26
Units of Volume....................................................................... 3-26
Units of Mass........................................................................... 3-26
Units of Force.......................................................................... 3-26
Units of Torque........................................................................ 3-26
Units of Pressure..................................................................... 3-26
Units of Power......................................................................... 3-26
Units of Temperature............................................................... 3-26
Periodic Maintenance ......................................................................... 4-1
Safety Precautions .......................................................................... 4-3
Introduction...................................................................................... 4-3
The Importance of Periodic Maintenance.................................. 4-3
Performing Periodic Maintenance ............................................. 4-3
Yanmar Replacement Parts ...................................................... 4-3
Required EPA Maintenance ...................................................... 4-3
EPA Requirements.......................................................................... 4-3
Conditions to Ensure Compliance with
EPA Emission Standards .......................................................... 4-3
Inspection and Maintenance ..................................................... 4-4
Periodic Maintenance Schedule...................................................... 4-5
Periodic Maintenance Procedures .................................................. 4-9
After Initial 50 Hours of Operation............................................. 4-9
Every 50 Hours of Operation................................................... 4-10
Every 250 Hours of Operation................................................. 4-11
Every 500 Hours of Operation................................................. 4-15
Every 1000 Hours of Operation............................................... 4-17
Every 2000 Hours of Operation............................................... 4-17
Engine .................................................................................................. 5-1
Safety Precautions .......................................................................... 5-3
Introduction...................................................................................... 5-3
Specifications .................................................................................. 5-4
General Information................................................................... 5-4
Test and Adjustment Specifications .......................................... 5-4
Repair Specifications................................................................. 5-5
Special Torque Chart ...................................................................... 5-8
Special Service Tools.................................................................... 5-11