TABLE OF CONTENTS
4 6LY3 Operation Manual
Every 1000 Hours of Operation ................. 110
Check the Fuel Injector Spray
Pattern................................................. 110
Clean and Check the Seawater
Passages ............................................ 110
Replace Alternator Belt ....................... 110
Adjust Intake / Exhaust Valve
Clearance............................................ 110
Replace Flexible Engine Mounts......... 110
Every 2000 Hours of Operation ................. 111
Overhaul and Check Fuel Feed
Pump................................................... 111
Clean Engine Oil Cooler...................... 111
Clean Seawater and Engine
Coolant System................................... 111
Replace Rubber Fuel Hoses ............... 111
EPA Requirements........................................... 112
EPA Certification Plates ................................... 112
Conditions to Ensure Compliance with EPA
Emission Standards ......................................... 112
Inspection and Maintenance ............................ 113
Troubleshooting.......................................................... 115
Troubleshooting Chart...................................... 116
Troubleshooting Information ............................ 117
Long-Term Storage..................................................... 119
Before You Place the Engine in Long-Term
Storage ................................................................... 119
Returning the Engine to Service............................. 120
Specifications.............................................................. 121
Principal Engine Specifications ........................ 121
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