2001 Yanmar 6LY2 Series Marine Diesel Engine Service Manual
Field service reference for the 2001 Yanmar 6LY2-STE, 6LY2A-STP, and 6LYA-STP marine diesel engines. Includes maintenance, troubleshooting, and repair procedures. Ref: HINSI-H8-011-1
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Models Covered & Key Technical Specifications
Yanmar 6LY2 Series Marine Diesel Engine Service Manual: 6LY2-STE / 6LY2A-STP / 6LYA-STP (HINSI-H8-011-1) – 2001 Covers 6LY2-STE / 6LY2A-STP / 6LYA-STP (2001) | Marine Diesel Engine Edition.
- Designated Specifications: 357 (350)/3100 is the continuous rating output at the specified engine speed.
- Key Tank Capacity: For optimal operation, 20 L establishes the fresh water cooling capacity.
- Primary Adjustment Range: The adjustment range for the fuel injection pump is 1.4-2.6 mm, ensuring precise fuel delivery.
- Baseline Performance Specs: The engine offers a maximum output of 309(420)/3300 kW(hp)/rpm for peak performance.
- Designated Generation Capacity: The charge system provides a nominal output of 12V/80A for reliable electrical supply.
- Key Tightening Data: For the fuel injection pump bolts, the tightening torque is specified as 2.6-2.8 kgf·m to ensure secure assembly.
Professional Workshop Service Manual & Technical Specifications
Multi-System Shop Workshop Manual: Yanmar 6LY2 Series Marine Diesel Engine Service Manual: 6LY2-STE / 6LY2A-STP / 6LYA-STP (HINSI-H8-011-1) – 2001
Operational-Scope: Yanmar // System-Coverage: Marine Diesel Engine / Sterndrive Logic // Operational-Scope: Service Manual.
| Service-Nexus | Technical-Path | Architecture |
|---|---|---|
| General | Exterior Views, Specifications, Performance Curves, Dimensions, Wiring Diagrams, Piping Diagrams | Engine Components |
| Basic Engine Parts | Cylinder Block, Cylinder Head, Pistons and Piston Pins, Connecting Rod, Crankshaft and Main Bearing, Camshaft and Tappets, Timing Gear, Flywheel | Core Mechanical Systems |
| Fuel Injection Equipment | Fuel Injection Pump Construction, Fuel Injection Pump Specifications, Fuel Supply System, Fuel Injection Nozzle, Fuel Feed Pump, Governor, Fuel Injection Pump, Pre-stroke, Injection timing, Delivery valve pressure test, Governor adjustment, Torque rise adjustment, Angle adjustment, Smoke cut spring, Relief spring, Delivery valve pressure test | Fuel Delivery and Control Systems |
| Intake and Exhaust System | Construction and Function, Maintenance, Procedures, Troubleshooting | Airflow and Emission Control |
| Lubrication System | Lubrication System, Lube Oil Pump, Lube Oil Filter, Oil Pressure Control Valve, Lube Oil Cooler, Piston Cooling Nozzle, Rotary Waste Oil Pump | Lubrication and Cooling & |
| Oil Management | ||
| Cooling Water System | Cooling System, Sea Water Pump, Fresh Water Pump, Fresh Water Cooler, Pressure Cap and Sub Tank, Thermostat, Kingston Cock | Thermal Management and Fluid, |
| Circulation Systems | ||
| Reduction and Reversing Gear | Specification and System, Reassembly and Disassembly, Disassembling supports, Disassembling valve body, Cautions for Reassembly, Tightening Torque | Drive Train and Power Transfer |
| Remote Control (Optional) | Remote Control System, Remote Control Installation | Control Interface Systems |
| Electrical System | System Diagram, Battery, Starter Motor, Alternator, Instrument Panel, Warning Devices, Tachometer | Electrical and Control Systems |
| Disassembly and Reassembly | Disassembly and Reassembly Precautions, Tools, Special Handtools, Measuring Instruments, Other material, Disassembly, Reassembly, Bolt/tightening torque, Test running | Component Servicing and. |
| Rebuilding Procedures |
Integrated service sections encompass diagnostics, repair, and maintenance for the 6LY2-STE, 6LY2A-STP, and 6LYA-STP models. This document provides a Comprehensive guide to engine systems, including fuel injection, lubrication, cooling, and electrical systems, as well as detailed disassembly and reassembly procedures for key components like the turbocharger and reduction gear. It also details troubleshooting steps to identify and resolve common engine issues.
Safely requiring thorough attention to detail, this manual documents torque specifications for critical components to ensure proper vibration dampening and long-term reliability.
This Service Manual provides detailed information on the construction, function, and maintenance of the Yanmar 6LY2 Series marine diesel engines. It covers all major systems including the fuel injection, lubrication, cooling, and electrical systems. Additionally, it offers step-by-step procedures for disassembly and reassembly, along with troubleshooting guidance. The manual is intended for qualified mechanics and technicians.
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