Part of the Kubota Repair Manuals.
This Kubota Workshop Manual covers the OC60-E4 and OC95-E4 diesel engines, the compact single-cylinder units used across Kubota-powered equipment. Running 107 pages, it is the factory service documentation, organised into Information, General, Engine Mechanism, and Servicing sections that carry specifications, performance curves, maintenance schedules, and full overhaul procedures.
You can work to Kubota's published figures: valve clearance of 0.14 to 0.18 mm, compression of 35.0 to 40.0 kgf/cm², rated oil pressure of 147 to 490 kPa, and engine oil capacities of 1.3 L for the OC60-E4 and 1.7 L for the OC95-E4. Tightening torques, troubleshooting charts, and step by step checking and disassembly let an owner or mechanic diagnose starting faults, low oil pressure, and lost compression, then rebuild the engine correctly.
It is delivered as a searchable, printable PDF download.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Information | 3-15 | |
| General | 16-36 | Engine Identification (Model Name and Engine Serial Number), E4 Engine, Lubricants, And Fuel, Maintenance Check List |
| Engine Mechanism | 37-52 | Feature, Engine Body (Cylinder Head, Crank Case and Cylinder Liner, Unaxial Balancer System), Lubricating System (General, Oil Strainer, Oil Pump, Oil Pressure Switch) |
| Servicing | 53-107 | Troubleshooting, Servicing Specifications, Tightening Torques (General Use Screws, Bolts and Nuts, Special Use Screws, Bolts and Nuts), Checking |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Tightening Torque (M8, No-grade or 4T) | 18 to 20 N·m (1.8 to 2.1 kgf·m, 13 to 15 lbf·ft) | p. 63 |
| Tightening Torque (M8, No-grade or 7T) | 24 to 27 N·m (2.4 to 2.8 kgf·m, 18 to 20 lbf·ft) | p. 63 |
| Valve Clearance (Cold) | 0.14 to 0.18 mm | p. 57 |
| Compression Pressure | 35.0 to 40.0 kgf/cm² | p. 57 |
| Engine Oil Pressure (At Idle Speed) | 49 kPa | p. 61 |
| Engine Oil Pressure (At Rated Speed) | 147 to 490 kPa | p. 61 |
| Cylinder Head Mounting Screw Torque (M8) | 18 to 20 N-m | p. 63 |
| Cylinder Head Mounting Screw Torque (M10) | 40 to 45 N-m | p. 63 |
| OC60-E4 | ||
| Engine Oil Capacity, OC60-E4 | 1.3 L | p. 22 |
| Fuel Tank Capacity, OC60-E4 | 3.5 L | p. 22 |
| OC95-E4 | ||
| Engine Oil Capacity, OC95-E4 | 1.7 L | p. 22 |
| Fuel Tank Capacity, OC95-E4 | 5.5 L | p. 22 |
