Part of the Yanmar Parts Manuals.
An injection pump that leaks past the plunger will keep a 3TNE68 on the stand until you can put the right part number on an order form, and guessing from a cross reference is how the wrong nozzle ends up in your cylinder head. This PDF is the Yanmar parts catalog for the 3TNE68-ENBAC diesel, publication number Y00V3629-1.
Its 32 pages break the engine into fifteen systems, from the cylinder block, crankshaft and piston group through the fuel injection device, governor and cooling water system to the starting motor and generator. Each section lists the factory numbers for assemblies and individual components, including undersize thrust bearing options for a rebuild and an optional gasket set.
Whether this engine sits in a tractor, a genset, a boat or a pump, the part numbers are the same. Print the pages you need, take them to the bench, and order once instead of three times.
Complete the set for your 3TNE68-ENBAC, 3TNE68, Y00V3629
- Repair Manual: Yanmar 2TNE68-4TNE84T Industrial Engine Service Manual
- Repair Manual: Yanmar TNE Series Industrial Diesel Engine Service Manual
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 2-3 | Cylinder Block Assy, Main Bearing, Thrust Bearing, Bush, Cylinder Head Gasket, Joint PT1 |
| Gear Housing | 4-5 | Gear Case Cover Assy, Oil Seal HTC456208, Gear Case Cmp, Lub. Oil Pump Assy, Cover, Gasket, Pipe Knock, Lub. Oil Supply Cap |
| Flywheel Housing & Oil Sump | 6-7 | Flywheel Housing, Flywheel Cover Cap, Oil Seal, Oil Sump Assy |
| Cylinder Head & Bonnet | 8-9 | Bonnet Assy, Lub. Oil Supply Cap, Breather Joint, Shelter Plate, Gasket, Bonnet Gasket, Pipe 12X, Knob |
| Suc. & Exh. Manifold | 10-11 | Intake Manifold, Suction Manifold Gasket, Exhaust Manifold, Exhaust Manifold Gasket |
| Camshaft & Driving Gear | 12-13 | Camshaft Assy, Camshaft Gear, Thrust Bearing, Tappet, Push Rod, Retainer, Fuel Injection Pump Cam Assy, Fuel Injection Pump Gear |
| Crankshaft & Piston | 14-15 | Crankshaft Assy, Crankshaft Gear, Flywheel Assy, Ring Gear, V-Pulley, Piston W/ Rings, Ring Set, Connecting Rod Assy |
| Lub. Oil System | 16-17 | Dipstick Guide, Dipstick, Lub. Oil Filter, Oil Intake Pipe Assy, Lub. Oil Switch |
| Cooling Water System | 18-19 | Cooling Water Pump Assy, Cooling Water Pump Gasket, Thermo Switch, Gasket, Joint, Joint O_ring, V-Pulley, V-Belt |
| Fuel Injection Device | 20-21 | Fuel Injection Pump Assy, Plunger W/ Barrel, Retainer, Plunger Spring, Delivery Valve W/ Seat, Delivery Valve Spring, Delivery Valve Holder, Delivery Gasket |
| Fuel Pipe | 22-23 | Fuel Pipe W/ Joint, Pipe Joint, Fuel Oil Pipe Assy, Fo-T, Pipe Joint Bolt Assy, Fuel Strainer, Taper Valve Spring |
| Governor | 24-25 | Gasket, Governor Case Cover, Governor Weight Assy, Spacer, Governor Sleeve, Governor Case, Link Color, Shaft |
| Starting Motor | 26-27 | 12V- .8KW Starter, Shift Lever Kit, Pinion Stopper Set, Thrust Washer Kit, Armature, Rear Cover Assy, Brush Holder Assy, Brush |
| Generator | 28-29 | Collar, Plate Assy, Stator, Coupler, Flywheel Assy, V-Belt Adjuster, Spacer |
| Gasket Set (Optional) & Tools | 30-32 | Gasket Set, Cylinder Head Gasket, Valve Stem Seal, Nozzle Gasket, Bonnet Gasket, Suction Manifold Gasket, Exhaust Manifold Gasket, Cooling Water Pump Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Thrust Bearing Undersize | 0.25US | p. 14 |
| Lub. Oil Pressure Switch Setting | 0.5KG | p. 16 |
| V-Belt Length | 35.0 | p. 18 |
| Starter Motor Rating | 12V-0.8KW | p. 26 |
