Part of the Yanmar Operator Manuals.
Rocker cover off, feeler gauges out, and the one number you need is the cold valve lash. This 39 page Yanmar operator manual for the 6LY(M)-UTE, 6LY(M)-UTEHD, and 6LY(M)-STE diesel engines has it, along with the cylinder head bolt torque, fuel injection start pressure, and the lube oil pressure the gauge should hold once everything is back together.
The manual walks through engine specifications, fuel and lube oil selection, first start of a new engine, daily operation, marine gear handling, and a full schedule of periodical checks and service. An easy troubleshooting guide and system diagrams close it out, so a rough idle or a climbing temperature gauge does not cost you an afternoon of guessing.
It is the factory publication (499613-02061), delivered as a PDF download in English. Print the pages you need and keep them at the bench while the engine is apart.
Complete the set for your 6LY(M)-UTE, 6LY(M)-UTEHD, 6LY(M)-STE…
What's Inside This Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Name of Parts | 9 | Lube Oil Cooler, Lube Oil Filter, Fuel Oil Filter, Inter Cooler, Turbocharger, Seawater Pump |
| Engine Specifications | 10 | Type, No. of Cylinders, Continuous Rating Output, Max. Rating Output, Fuel Injection Timing, Cooling System |
| Precautions | 11-15 | Fuel Oil, Lube Oil, Cooling Water, Exhaust Gas, Battery, Turbocharger |
| Fuel and Lube Oil | 16 | Selection of Fuel, Handling of Fuel, Selection of Lube Oil |
| Initial Operation of New Engine | 17-22 | Fuel Supply, Lube Oil Supply, Cooling Water Supply, Bleeding Air, Remote Control Unit, Instrument Panels |
| Operation | 23-26 | Engine Starting, Remote Control, Cooling Water, Exhaust Smoke, Clutch Lever, Engine Stopping |
| Handling the Marine Gear | 27-28 | Clutch Lever, Emergency Bolts, Lube Oil System, Bearings, Friction Plate, Remote Control Cable |
| Periodical Checks and Service | 29-36 | Fuel System, Lube Oil System, Cooling Water System, Electrical Parts, Turbocharger, Marine Gear |
| Easy Troubleshooting Guide | 37 | |
| System Diagrams | 38-39 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head bolt torque | 206 ± 9.8 N·m (21 ± 1kgf-m) | p. 32 |
| Nozzle fastening nut torque | 3.9~4.9 Nm (0.4-0.5 ± 1kgf-m) | p. 32 |
| Fuel injection valve securing nut torque | 0.7~0.9 kg-m | p. 14 |
| Fuel filter element replacement interval | 250 service hours | p. 11 |
| Engine fresh water volume | 24 l | p. 10 |
| Subtank fresh water volume | 0.8 l | p. 10 |
| Fresh water operating temperature (new engine) | 75°C to 85°C | p. 24 |
| Fresh water operating temperature (general) | not rise above 90°C | p. 24 |
| Engine Lube Oil Capacity (Oil pan Full/Effective) | 20 l / 8 l | p. 10 |
| Clutch Lube Oil Capacity (Full/Effective) | 3.5 l / 0.3 l | p. 10 |
| Engine Fresh Water Capacity | 24 l | p. 10 |
| Idling Speed | 700 ± 25 rpm | p. 10 |
