Part of the Yanmar Parts Manuals.
An engine on the stand with the crank out is a bad place to discover you ordered the wrong bearing shells. Yanmar publication Y00B5780 exists to prevent that: the factory parts catalog for the 3TNE68-NBAB industrial diesel in its B15AY specification, part of the TNE series, it puts the correct part number for every component in front of you before you spend money.
The 32 pages are organized by system, from Cylinder Block, Cylinder Head and Bonnet, and Crankshaft and Piston through the Fuel Injection Device, Governor, Cooling Water System, Starting Motor, and Generator, ending with the optional Gasket Set and tools. Each system pairs an exploded view with its numbered parts list, including undersize thrust bearings and 0.25 oversize piston assemblies for rebuilds.
The PDF is bookmarked by section, so when the head is off and you need a valve stem seal number, you are one click from the Cylinder Head pages.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 3-4 | Cylinder, Plug, Main Bearing, Thrust Bearing, Bush, Cylinder Head Gasket |
| Gear Housing | 5-6 | Gear Case, Oil Seal, Lub. Oil Pump, Gear Assy, Ball Bearing, O-Ring |
| Flywheel Housing & Lub. Oil Sump | 7-8 | Flywheel Housing, Flywheel Cover, Oil Seal, Oil Sump, Drain Plug, Seal Washer |
| Cylinder Head & Bonnet | 9-10 | Cylinder Head, Bonnet, Valve, Valve Spring, Valve Stem Seal, Rocker Arm, Glow Plug |
| Suction & Exhaust Manifold | 11-12 | Suction Manifold, Exhaust Manifold, Manifold Gasket, Bolt, Stud, Nut |
| Camshaft & Driving Gear | 13-14 | Camshaft, Camshaft Gear, Thrust Bearing, Tappet, Push Rod, Idle Gear, Ball Bearing |
| Crankshaft & Piston | 15-16 | Crankshaft, Crankshaft Gear, Fly |
| Lub. Oil System | 17-18 | |
| Cooling Water System | 19-20 | Pump Assy, C. Water, Switch, Thermo, V-Pulley, Thermostat, Fan |
| Fuel Injection Device | 21-22 | Pump Assy, F.INJECT., Plunger W/BARREL, Nozzle Assy, F.INJECT, Pipe, Fuel Inject, Fuel INJECT.VALVE As |
| Fuel Pipe | 23-24 | Pipe W/JOINT, Fuel, Joint, Pipe, Clamp, Pipe Assy, Fuel Oil, Strainer |
| Governor | 25-26 | Cover, Case, Weight Assy, Gov., Lever Assy |
| Starting Motor | 27-28 | |
| Generator | 29-30 | |
| Gasket Set (Optional) & Tool | 31-32 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Lubricating Oil Filter Quantity | 1 filter | p. 16 |
| Thrust Bearing Undersize | 0.25 US | p. 14 |
| Oil Seal Dimension | HTC456208 | p. 4 |
| O-Ring 1A P-type Dimension | 12.0 | p. 4 |
| Drain Plug Thread | M22 | p. 6 |
| Piston Assembly Oversize | 0.25 | p. 14 |
| Fan Diameter | 290 | p. 18 |
| Link Length (White) | 88.8 | p. 24 |
| Link Length (Red) | 89.0 | p. 24 |
