The YANMAR 6LYA, 6LY2, and 6LY2A Series are robust marine diesel engines designed for demanding maritime applications. These 6-cylinder, 4-cycle, water-cooled engines are engineered for reliability and performance, featuring vertical orientation and advanced systems such as turbocharging. With displacements of 5.184 L for the 6LYA-STP and 5.813 L for the 6LY2-STE and 6LY2A-STP models, these engines provide substantial power for various vessel types. Their robust construction and sophisticated engineering ensure dependable operation in challenging marine environments.
This workshop service manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of YANMAR 6LYA / 6LY2 / 6LY2A Series marine diesel engines. It covers all major engine components, including the cylinder block and head, crankshaft, camshaft, fuel injection system, lubrication system, turbocharger, and cooling water system. Additionally, the manual details procedures for the reduction gear and reversing gear systems, as well as the remote control and electrical systems such as the starter motor and instrument panel. With step-by-step instructions, diagrams, and diagnostic support, this manual is an essential resource for owners, mechanics, and technicians to ensure optimal engine performance and longevity.
YANMAR 6LYA 6LY2 6LY2A MARINE DIESEL ENGINE WORKSHOP SERVICE MANUAL
APPLICABLE ENGINE MODEL:
6LY2-STE
6LYA-STP
6LY2A-STP
ENGINE COVERED:
5.813L 6-CYLINDER, 4-CYCLE, VERTICAL WATER-COOLED 6LY2-STE DIESEL ENGINE
5.184L 6-CYLINDER, 4-CYCLE, VERTICAL WATER-COOLED 6LYA-STP DIESEL ENGINE
5.813L 6-CYLINDER, 4-CYCLE, VERTICAL WATER-COOLED 6LY2A-STP DIESEL ENGINE
CONTENTS:
GENERAL INFORMATION
BASIC ENGINE PARTS
CYLINDER BLOCK/HEAD
CONNECTING ROD/PISTON
CRANKSHAFT/MAIN BEARING
CAMSHAFT & TAPPETS
TIMING GEAR/FLYWHEEL
FUEL SYSTEM
FUEL INJECTION SYSTEM
INTAKE SYSTEM
EXHAUST SYSTEM
LUBRICATION SYSTEM
TURBOCHARGER SYSTEM
COOLING WATER SYSTEM
REDUCTION SYSTEM
REVERSING GEAR SYSTEM
REMOTE CONTROL SYSTEM
ELECTRICAL SYSTEM
STARTER MOTOR
BATTERY/ALTERNATOR
INSTRUMENT PANEL
WARNING DEVICES
DISASSEMBLY/ASSEMBLY
TROUBLESHOOTING
THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS VERSION
# ALL MAC VERSION
# YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM ADOBE ACROBAT WEBSITE
# AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM WINZIP WEBSITE
THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.
YANMAR 6LYA 6LY2 6LY2A MARINE DIESEL ENGINE WORKSHOP SERVICE MANUAL
APPLICABLE ENGINE MODEL:
6LY2-STE
6LYA-STP
6LY2A-STP
ENGINE COVERED:
5.813L 6-CYLINDER, 4-CYCLE, VERTICAL WATER-COOLED 6LY2-STE DIESEL ENGINE
5.184L 6-CYLINDER, 4-CYCLE, VERTICAL WATER-COOLED 6LYA-STP DIESEL ENGINE
5.813L 6-CYLINDER, 4-CYCLE, VERTICAL WATER-COOLED 6LY2A-STP DIESEL ENGINE
CONTENTS:
GENERAL INFORMATION
BASIC ENGINE PARTS
CYLINDER BLOCK/HEAD
CONNECTING ROD/PISTON
CRANKSHAFT/MAIN BEARING
CAMSHAFT & TAPPETS
TIMING GEAR/FLYWHEEL
FUEL SYSTEM
FUEL INJECTION SYSTEM
INTAKE SYSTEM
EXHAUST SYSTEM
LUBRICATION SYSTEM
TURBOCHARGER SYSTEM
COOLING WATER SYSTEM
REDUCTION SYSTEM
REVERSING GEAR SYSTEM
REMOTE CONTROL SYSTEM
ELECTRICAL SYSTEM
STARTER MOTOR
BATTERY/ALTERNATOR
INSTRUMENT PANEL
WARNING DEVICES
DISASSEMBLY/ASSEMBLY
TROUBLESHOOTING
THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS VERSION
# ALL MAC VERSION
# YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM ADOBE ACROBAT WEBSITE
# AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM WINZIP WEBSITE
THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.
