Part of the Kubota Repair Manuals.
Got a Kubota 03 Series diesel torn down on the bench? This 94-page workshop manual (OEM WSM 01092) covers all five engine variants: D1403-B(E), D1703-B(E), V1903-B(E), V2203-B(E), and F2803-B(E). Detailed specification tables lay out clearances and torque values for each model. Electrical schematics, lubrication system diagrams, and cooling system layouts follow, plus comprehensive exploded views mapping every component from cylinder head to oil pump. Step-by-step procedures cover teardown, inspection, and reassembly with clearance tables at each checkpoint. Torque the head bolts to 93.1 to 98.0 N-m, confirm thermostat opening at 69.5 to 72.5°C, and set fan belt deflection to 10 to 12 mm under 10 kgf. Bookmarked and keyword-searchable, so pull it up on any device right at the workbench.
Other edition of this manual
What's Inside This Kubota B-Series Diesel Engines Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | Safety First, Safety Servicing and Repairing, General Precautions, Danger, Warning, Caution | |
| Specifications | Engine Body, Lubricating System, Cooling System, Fuel System, Electrical System | |
| Mechanism | Features, Engine Body, Lubricating System, Cooling System, Intake and Exhaust System, Fuel System, Electrical System | |
| Disassembling and Servicing | General, Engine Body, Lubricating System, Cooling System, Fuel System, Electrical System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator cap internal pressure | 88 kPa (0.9 kgf/cm², 13 psi) | p. 18 |
| Radiator cap air leakage test | 10 seconds or more 0.9 -> 0.6 kgf/cm² | p. 39 |
| Thermostat's valve opening temperature | 69.5 to 72.5°C | p. 39 |
| Temperature at which thermostat completely opens | 85°C | p. 39 |
| Radiator water tightness test pressure | 1.4 kgf/cm² (137 kPa, 20 psi) | p. 39 |
| Cylinder Head Bolt Torque | 93.1 to 98.0 N-m | p. 32 |
| Flywheel Bolt Torque | 98.0 to 107.8 N-m | p. 32 |
| Connecting Rod Bolt Torque (Flange Bolt) | 44.1 to 49.0 N-m | p. 32 |
| Valve Clearance (Cold) | 0.18 to 0.22 mm | p. 35 |
| Fuel Injection Pressure | 13.73 to 14.71 MPa | p. 40 |
| Glow Plug Resistance | 0.8 Ω | p. 40 |
| Bore x Stroke | 80 x 92.4 mm | p. 7 |
