Part of the Kubota Repair Manuals.
This is the Kubota Workshop Manual for the V3800 common-rail diesel engine, a 201-page PDF covering the V3800-CR-TE4, V3800-CR-TIE4, V3800-CR-TE4C, V3800-CR-TIE4C, V3800-TIE4, and V3800-TIE4C variants. These are Tier 4 OEM engines, and the manual documents both the common-rail and after-treatment hardware.
It moves from engine identification and safety through specifications, performance curves, dimensions, and wiring diagrams, then details the engine mechanism: the cylinder block and head, piston, lubricating and cooling systems, the common rail system, the engine control ECU and sensors, and the diesel particulate filter after-treatment.
The servicing section carries troubleshooting, full servicing specifications, tightening torques, and step-by-step disassembly and assembly. Maintenance intervals from the daily checks out to the 3000-hour service are laid out, making this a complete reference for rebuilding or maintaining the V3800.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Record of Revisions | 3 | Engine Identification, Muffler Full Assembly Identification, Change of Radiator Coolant, Compression Tester Adaptor, Diesel Particulate Filter (DPF), SCV |
| Information | 4-26 | |
| General | 27-69 | Engine Identification (Model Name and Engine Serial Number, Cylinder Number, Muffler Full Assembly Identification), Maintenance Check List (Daily Check Points) |
| Engine Mechanism | 70-107 | Engine (Cylinder Block, Cylinder Head, Piston), Lubricating System (Oil Cooler), Cooling System (Thermostat, Bottom Bypass System) |
| Troubleshooting | 109-112 | |
| Servicing Specifications | 113-119 | |
| Tightening Torques | 120-122 | Tightening Torques of Screws, Bolts and Nuts for General Use, Bolts and Nuts for Special Use |
| Checking, Disassembling and Servicing | 123-200 | Engine Body and Servicing |
| Editor | 201 | Engine Service Department, Address, Phone, Fax, E-Mail, Kubota Corporation, Printed in Japan, Code Number |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| General Torque (No Mark) M6 | 7.9 to 9.3 N·m (0.80 to 0.95 kgf·m, 5.8 to 6.8 lbf·ft) | p. 120 |
| General Torque (No Mark) M8 | 18 to 20 N·m (1.8 to 2.1 kgf·m, 13 to 15 lbf·ft) | p. 120 |
| Lubricating Oil Capacity | 13.2 L (3.49 U.S.gals) | p. 10 |
| Fuel Type | Ultra Low Sulfur Diesel Fuel only < 0.0015 % (15 ppm) | p. 36 |
| Coolant Change Interval (L.L.C.) | Every 2 years | p. 34 |
| Total Displacement | 3.769 cm³ | p. 10 |
| Weight (Dry) | 324 kg | p. 11 |
| Cylinder Head Surface Flatness (Allowable Limit) | 0.05 mm | p. 113 |
| Valve Clearance (Cold, Factory Spec) | 0.23 to 0.27 mm | p. 114 |
| V3800-CR-TE4, V3800-CR-TIE4, V3800-CR-TE4C, V3800-TIE4, V3800-TIE4C | ||
| Engine Oil Change Interval | Every 500 Hrs or 1 year whichever comes first | p. 35 |
| V3800-CR-TE4, V3800-CR-TE4C, V3800-CR-TIE4, V3800-CR-TIE4C | ||
| Compression Pressure (Factory Spec) (V3800-CR-TE4, V3800-CR-TE4C, V3800-CR-TIE4, V3800-CR-TIE4C) | 3.09 to 3.28 MPa / 200 min⁻¹ (rpm) | p. 113 |
| V3800-TIE4, V3800-TIE4C | ||
| Compression Pressure (Factory Spec) (V3800-TIE4, V3800-TIE4C) | 2.95 to 3.13 MPa / 200 min⁻¹ (rpm) | p. 113 |
