Rebuilding a D1005-E4B, D1105-E4B, D1305-E4B, or V1505-E4B back to factory tolerance? This 128-page Kubota Shop Manual (OEM #9Y111-07840) is built for exactly that job. Inside: 50 pages of disassembly and servicing procedures, 24 pages of maintenance intervals from daily checks out to 3000 hours, 9 pages of servicing specs, and 7 pages of clearance data covering piston rings, governor, and boost compensator. The torque section runs 2 pages of values for general and special-use fasteners. Fuel injection pressure spec sits between 13.73 and 14.70 MPa. Top ring gap on the D1105-E4B gets replaced once the allowable limit hits 1.20 mm. Your engine is apart on the bench, so don't guess the clearance. Bookmarked PDF opens on laptop, tablet, or phone, ready next to the block while you measure.
What's Inside This Kubota D1005-E4B, D1105-E4B, D1305-E4B, V1505-E4B Manual
| System | Pages | Key Topics |
|---|---|---|
| Information | 3-17 | Safety First, Specifications, Performance Curves, Dimensions |
| General | 18-53 | Engine Identification (model name, engine serial number E4b, cylinder number), Maintenance Checklist including daily checks, initial 50 hours, every 50/100/200/400/500 hours, 1–2 months, yearly, 800/1500/3000 hours, and every 2 years, Check and Maintenance procedures, Special Tools. |
| Mechanism | 54-58 | Engine Body (Closed Breather, Half-Floating Head Cover), Governor, Boost Compensator |
| Servicing | 59-128 | Troubleshooting, Servicing Specifications, Tightening Torques (Tightening Torques For General Use Screws, Bolts and Nuts, Tightening Torques For Special Use Screws, Bolts and Nuts), Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling, Servicing) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Fuel Injection Pressure | 13.73 to 14.70 MPa (140.0 to 150.0 kgf/cm², 1992 to 2133 psi) | p. 81 |
| Replacing fuel filter element (Service Interval) | Every 400 hrs | p. 24 |
| Replacing air cleaner element (Service Interval) | Every 1 year | p. 24 |
| Glow plug (Tightening torque) | 7.9 to 14 N·m (0.80 to 1.5 kgf·m, 5.8 to 10 lbf·ft) | p. 73 |
| Glow Plug (Resistance) | Approx. 0.9 Ω | p. 71 |
| Nozzle holder assembly (Tightening torque) | 49 to 68 N·m (5.0 to 7.0 kgf·m, 37 to 50 lbf·ft) | p. 73 |
| Delivery Valve Fuel Tightness (Factory specification) | 10 seconds (13.73 → 12.75 MPa, 140.0 → 130.1 kgf/cm², 1991 → 1850 psi) | p. 70 |
| Injection pipe retaining nut (Tightening torque) | 25 to 34 N·m (2.5 to 3.5 kgf·m, 18 to 25 lbf·ft) | p. 73 |
| Valve Stem to Valve Guide Clearance (Allowable Limit) | 0.10 mm (0.0039 in.) | p. 65 |
| D1005-E4B | ||
| Piston ring gap (Top ring) - Allowable limit | 1.25 mm (0.0492 in.) | p. 114 |
| D1105-E4B, D1305-E4B, V1505-E4B | ||
| Piston ring gap (Top ring) - Allowable limit | 1.20 mm (0.0472 in.) | p. 114 |
| D1005-E4B, D1105-E4B | ||
| Lubricating Oil Capacity | 4.7 L | p. 9 |
Kubota D1005-E4B, D1105-E4B, D1305-E4B, V1505-E4B Common Problems This Manual Covers
Kubota D1105-E4B won't start, white smoke during cranking, smells like raw diesel
Test each glow plug for resistance at the terminal. Reading should be approximately 0.9 Ω per page 71. Replace any plug outside spec and torque new ones to 7.9 to 14 N·m. Bleed air from the fuel system, then crank with the stop solenoid energized.
Manual Section: Engine Does Not StartEngine lacks power under load, black smoke at the stack, governor opens but RPM sags p. 81
Pop-test each injector on a bench. Opening pressure must fall between 13.73 and 14.70 MPa (1992 to 2133 psi) per page 81. Clean or replace any nozzle below 13.73 MPa. Reinstall the holder assembly and torque to 49 to 68 N·m. Verify the air cleaner element is clean before reassembly.
Manual Section: Deficient OutputBlue smoke from exhaust at idle, oil consumption climbing, dipstick drops between services p. 114
Pull the pistons and measure top ring end gap with a feeler gauge in the bore. Allowable limit is 1.20 mm on the D1105, D1305, and V1505. Check oil ring side clearance against the 0.15 mm limit on page 115. Replace any rings out of spec and stagger the new ring gaps 120 degrees apart.
Manual Section: Abnormal Exhaust Gas ColorRough running and surging after the 400 hour service, fuel flows but engine hunts at idle
Bleed the fuel system at the filter housing and injection pump bleed screw until clear fuel runs without bubbles. Confirm the fuel filter element was replaced at the 400 hour interval shown on page 24. Verify delivery valve tightness: pressure must hold from 13.73 to 12.75 MPa for 10 seconds per page 70. Replace the valve if it bleeds down faster.
Manual Section: Engine Revolution Is Not SmoothHard cold start, extended cranking below 5 °C, no smoke until engine finally catches
Disconnect the glow plug bus bar and probe each plug to ground. Resistance should read approximately 0.9 Ω on page 71. Swap any open plug and torque to 7.9 to 14 N·m. Confirm battery voltage holds above 10 V during cranking and inspect cables for corrosion at both ends. Switch to winter grade diesel if ambient temperature drops below the fuel cloud point.
Manual Section: Engine Does Not StartLow oil pressure warning at idle, gauge drops after engine reaches operating temperature p. 73
Drain the sump and refill with the correct grade oil. Run the engine to full temperature and read pressure at rated speed: spec is 294 to 441 kPa. If pressure stays low, drop the pan and clean the oil strainer screen. Inspect the relief valve spring and seat for debris. Measure crankshaft bearing clearance against the limits in the clearance section on page 68 before condemning the oil pump.
Manual Section: Abnormal Oil PressureFrequently Asked Questions
How to fix a Kubota D1005 that will not start?
For a no-start, first confirm fuel is in the tank and bleed air from the fuel system. If that doesn't solve it, the fuel filter may be clogged and need cleaning or replacement (page G-16). Other causes include incorrect injection timing, which requires adjustment per page 1-S19, or a failing injection pump that may need repair or replacement.
What are the torque specs for a Kubota V1505 cylinder head?
Cylinder head screws on the V1505 torque to 64 to 68 N·m, equivalent to 6.5 to 7.0 kgf·m or 47 to 50 lbf·ft. Follow the tightening sequence shown in the manual to avoid warping the head or crushing the gasket.
How do you test the fuel injectors on a Kubota D1105 engine?
Connect the D1105 injector to a nozzle tester and slowly work the handle to measure the pressure at which fuel begins to spray. Factory spec sits between 13.73 and 14.70 MPa (1992 to 2133 psi). Anything outside that range means the injector needs adjustment or repair.
Why is my Kubota D1305 smoking excessively?
Smoke color narrows the cause. Black or dark gray exhaust usually points to engine overload, low-grade fuel, or a clogged fuel filter that needs replacing (page G-16). White or blue smoke usually means excessive oil is reaching the combustion chamber, so drop the level back to the dipstick mark.
How do you test the pressure settings on Kubota injectors?
Use a nozzle tester. Injection pressure spec is 13.73 to 14.70 MPa (1992 to 2133 psi). For leak testing, raise pressure to 12.75 MPa (1849 psi) and hold 10 seconds. Any fuel weep at the valve seat means the nozzle piece has to be replaced.
What format is this Kubota D1005-E, V1505-E manual in?
Immediate download of the full 128-page searchable Shop Manual. Open it on any device, whether that's a laptop at the desk or a phone out in the field.
Can I print this Kubota D1005-E, V1505-E manual?
No restrictions. The PDF is DRM-free, so print whatever sections you need for the shop. Standard letter or A4 paper works fine.
Document Quality
This is a native digital PDF, not a scan, and the full text is searchable and can be copied. The text is consistently crisp and easy to read, while the diagrams are a mix of sharp line drawings and clear photos with readable labels. All pages are clean and free of any marks or scan artifacts, though you will find a few intentionally blank pages that serve as section dividers.
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