Part of the Yanmar Parts Manuals.
An engine comes off the stand faster than it goes back on, and the piece that stalls the job is never the big casting, it is the thrust bearing half or valve stem seal you cannot put a number on. This Yanmar parts catalog, publication YOOF2161, exists to name every one of those pieces for the 2TNV70-PTB from serial prefix E/#00155-, with the listing also covering the TB108, 4JH-DT, 4JH-DTZ, 4JH-DTZP, 4JH-DTZA, and 4JH-DTZY designations.
Across 40 pages of exploded figures it walks the complete engine: cylinder block, head and bonnet, crankshaft and pistons, camshaft and gears, injection pump, governor, injectors, fuel line, cooling and lube systems, starting motor, generator, and a full gasket set, with a numerical index to trace any part number back to its figure.
When there is no dealer counter nearby and nobody left to ask, this PDF downloads once and stays yours for the life of the engine.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4-5 | Block Assembly, Plugs, Bolts, Main Bearing Set, Thrust Bearings |
| Gear Housing | 6-7 | Gear Case, Oil Seal, Relief Valve, Oil Pump Components, Bolts |
| Flywheel Housing & Oil Sump | 8-9 | Flywheel Housing, Oil Sump, Oil Seal, Bolts, Gaskets |
| Cylinder Head & Bonnet | 10-11 | Head Assembly, Valves, Valve Springs, Rocker Arm Assembly, Gaskets |
| Air Cleaner | 12-13 | Body, Element, Unloader Valve, Clamps |
| Exhaust Manifold & Silencer | 14-15 | Exhaust Manifold, Silencer, Gaskets, Bolts |
| Camshaft & Driving Gear | 16-17 | Camshaft Assembly, Tappets, Push Rods, Idle Gear, Pump Gear |
| Crankshaft & Piston | 18-19 | Crankshaft Assembly, Pistons, Piston Rings, Connecting Rods, Bearings |
| Lub. Oil System | 20-21 | Dipstick, Oil Filter, Oil Pipe, Oil Pressure Switch |
| Cooling Water System | 22-23 | Water Pump, Thermostat, Radiator, Fan, V-Belt |
| Fuel Injection Pump | 24-25 | Fie Assembly, Plunger, Delivery Valve, Control Rack, Governor Components |
| Governor | 26-27 | Case, Control Lever, Springs, Weights, Solenoid |
| Fuel Injection Valve | 28-29 | Injection Valve, Nozzle Holder, Fuel Pipes, Return Pipes |
| Fuel Line | 30-31 | Fuel Strainer, Fuel Filter, Water Separator, Fuel Pipes, Clamps |
| Starting Motor | 32-33 | Starter Assembly, Armature, Clutch, Solenoid Switch |
| Generator | 34-35 | Assembly, Stator, Pulley, Adjuster Belt |
| Gasket Set | 36-37 | Components, Cylinder Head Gasket, Oil Pump O-Rings, Valve Stem Seals |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator Cap Pressure | 0.9 kg/cm² | p. 23 |
| Oil Pressure Switch Setting | 0.5 kg | p. 21 |
| Generator Output | 15A | p. 35 |
| Timer Setting | 1 sec | p. 35 |
| V-Belt Size | A35 | p. 23 |
