Part of the Kubota Repair Manuals.
This is the Kubota Workshop Manual for the V2003-T-B, F2503-T-B, and V2203-DI-B diesel engines, a 174-page factory service document (publication 9Y011-01082). It covers all three engines in one book, including the turbocharged variants, from mechanism through servicing.
The manual is organized into General Information, Mechanism, and Servicing. The Mechanism part explains the engine body, lubricating system, cooling system, intake and exhaust, fuel system, electrical charging system, and the turbocharger. The Servicing part gives the checks, factory specifications, and allowable limits for compression pressure, valve clearance, injection pressure, and more.
With it a mechanic or engine rebuilder can measure cylinder head flatness, set valve clearance, test injection nozzles, check the turbo bearing and seals, and service the alternator and IC regulator. Torque values are called out per fastener. It downloads as a searchable PDF for use at the bench or in the field.
Other edition of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | Engine Identification, Safety Instructions, Daily Check Points, Periodic Maintenance Schedule, Special Tools | |
| Mechanism: Engine Body | Cylinder Block, Cylinder Head, Crankshaft, Piston and Piston Rings, Connecting Rod, Rocker Arm, Camshaft, Flywheel | |
| Mechanism: Lubricating System | Oil Pump, Relief Valve, Oil Filter Cartridge, Oil Pressure Switch | |
| Mechanism: Cooling System | Water Pump, Thermostat, Radiator, Radiator Cap | |
| Mechanism: Intake/Exhaust System | Air Cleaner, Muffler | |
| Mechanism: Fuel System | Injection Pump, Injection Nozzle, Fuel Filter, Governor | |
| Mechanism: Electrical System | Charging System, Alternator, Ic Regulator | |
| Mechanism: Turbo Charger System | Turbine, Compressor, Bearing, Seals (Piston Rings) | |
| Servicing: Engine Body | Compression Pressure, Cylinder Head Flatness, Valve Clearance, Piston Ring Gap, Crankshaft Alignment, Cylinder Bore Wear | |
| Servicing: Lubricating System | Engine Oil Pressure Check, Oil Pump Rotor Clearance, Oil Pump End Clearance | |
| Servicing: Cooling System | Fan Belt Tension, Thermostat Opening Temperature, Radiator Leakage, Water Pump Assembly | |
| Servicing: Fuel System | Injection Timing, Fuel Tightness of Pump Element, Nozzle Injection Pressure, Nozzle Spraying Condition | |
| Servicing: Electrical System | Starter Motor Test, Magnet Switch Test, Glow Plug Resistance, Alternator Servicing, Ic Regulator Servicing |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| V2003-T-B, F2503-T-B | ||
| Fan drive pulley mounting nut torque | 137.3 to 156.9 N-m (14.0 to 16.0 kgf-m, 101.3 to 115.7 ft-lbs) | p. 18 |
| Cylinder head screws torque | 93.2 to 98.1 N-m (9.5 to 10.0 kgf-m, 68.7 to 72.3 ft-lbs) | p. 6 |
| Injection Pressure (V2003-T-B, F2503-T-B) | 13.73 to 14.71 MPa | p. 91 |
| V2203-DI-B | ||
| Engine Oil Capacity (90 mm oil pan), V2203-DI-B | 7.6 L | p. 8 |
| Engine Oil Capacity (124 mm oil pan), V2203-DI-B | 9.8 L | p. 8 |
| Injection Pressure, V2203-DI-B | 22.4 to 23.4 MPa | p. 8 |
| Compression Pressure (Factory Spec) | 2.94 to 3.24 MPa | p. 16 |
| V2003-T-B | ||
| Engine Oil Capacity (90 mm oil pan), V2003-T-B | 8.3 L | p. 11 |
| Engine Oil Capacity (124 mm oil pan), V2003-T-B | 10.2 L | p. 11 |
| F2503-T-B | ||
| Engine Oil Capacity (124 mm oil pan), F2503-T-B | 12.7 L | p. 11 |
| All Models | ||
| Cylinder Head Screws Torque | 93.2 to 98.1 N-m | p. 18 |
| Connecting Rod Screws Torque | 36.3 to 41.2 N-m | p. 18 |
