1996 Kubota D905-B, D1005-B, V1205-B, V1205-T-B, V1305-B, D1105-B, D1105-T-B, V1505-B, V1505-T-B Diesel Engine Workshop Manual (P/N 01090SL)

The 1996 Kubota 05 Series Workshop Manual, reprinted as Toro Part No. 01090SL, covers D905, D1005, D1105, V1205, V1305, and V1505 engines. Turbocharged coverage applies to the V1205-T-B, D1105-T-B, and V1505-T-B variants.

Text search, navigation and circuit detail: Embedded PDF bookmarks provide access to the mechanism and servicing sections and their subsections. Text search works on the cover only, not the manual pages. Small rectifier-terminal labels are best read enlarged.

• Engine repair: Cylinder-head removal, valve servicing, timing-gear inspection, piston and connecting-rod work, crankshaft bearing checks, and cylinder boring and honing.

• Troubleshooting: Symptom-based charts for starting problems, uneven running, smoke, low output, oil-pressure faults, overheating, and rapid battery discharge.

• Fuel injection: Injection-timing adjustment, pump-element and delivery-valve leakage tests, nozzle opening-pressure and spray-pattern checks, fuel-system bleeding, and fuel feed pump removal.

• Lubricating system: Oil-pressure testing, trochoid-pump clearance checks, oil filter cartridge replacement, and lubrication-flow diagrams showing the oil supply to engine components.

• Cooling system: Thermostat testing, radiator and cap leakage checks, fan-belt adjustment, and water-pump disassembly with mechanical-seal replacement.

• Electrical repair: Starter motor and magnet-switch testing, glow-plug checks, alternator servicing, IC regulator internal wiring diagrams, and rectifier circuit tests.

• Turbocharger service: Turbine and compressor leakage checks, wheel-shaft inspection, axial and radial clearance checks, housing removal, and turbocharger assembly replacement.

This manual was written for servicing personnel working on the mechanism, service, and maintenance of Kubota 05 Series engines.

Engine Architecture and Serial Differences

The mechanism section explains the tunnel-type, linerless cylinder block and cross-flow intake and exhaust ports. Construction and operating principles are separated from the disassembly and servicing procedures.

N-TVCS and E-TVCS: Serial numbers through 489290 identify N-TVCS engines; 489291 and higher identify E-TVCS engines. The later build changes cylinder-head configuration, nozzle heat seals, glow plugs, and injection-pump shims. These distinctions help identify the appropriate cylinder head and pump-shim arrangement before a repair.

The mechanism descriptions focus on E-TVCS. A separate serial break at 604087 changes the specified crankshaft end-bolt torque.

Factory Tolerances and Rebuild Specifications

The repair sections cover cylinder-head flatness and crack inspection, valve-guide replacement, valve-seat correction and lapping, and crankpin oil-clearance measurement with plastigage. Timing-gear alignment drawings accompany the gear-train assembly instructions.

Factory specifications and allowable limits cover crankshaft journals, valve guides, piston rings, and cylinder bores, with the latter listed as “Cylinder Liner” in the specification tables. Reconditioning information includes undersize crankshaft bearings, oversize thrust bearings, and oversize piston and ring selections.

Component-specific torque tables distinguish the main bearing case fasteners. Compression-pressure checks, cold valve-clearance data, and oil-pressure specifications support inspection and adjustment. The piston-installation notes warn that improper insertion can scratch the rings’ chrome plating.

Fuel Injection, Governor and Timing

The Bosch MD type mini injection pump and centrifugal mechanical governor are explained through their operating components and speed-control behavior. Automatic advance timer views distinguish timer-equipped arrangements from engines without the timer.

The injection-pump sections distinguish the earlier shims from the later soft-metal gasket shims. Pump-element replacement requires fuel-delivery adjustment on a specified test bench; routine pump removal should not be mistaken for unrestricted pump overhaul.

The fuel-system precautions address pressure release and the risk of injection injury during nozzle testing.

Cooling, Lubrication and Turbocharger Work

Water-pump coverage extends to the shaft, impeller, and mechanical seal. The manual explains the oil-pressure switch and traces low oil pressure to the strainer, filter, oil galleries, bearings, relief valve, and pump.

The periodic maintenance check list distinguishes application and oil-pan configurations. Intake and exhaust coverage includes air-cleaner servicing and muffler removal.

Turbocharger exploded and sectional views identify the turbine, compressor, floating bearings, thrust bearing, and oil seals. Service coverage includes housing removal and cleaning, but the manual specifically prohibits separating the compressor wheel and turbine shaft.

Starter and Alternator Repair

Electrical inspection goes beyond wiring diagrams: starter tests cover the armature, field coil, brushes, commutator, and overrunning clutch. Alternator checks address the stator, rotor, slip rings, brushes, rectifier, and IC regulator.

The alternator disassembly notes identify the slip rings and fan as parts that can be damaged if the rotor is dropped.

Special Tools and Test Equipment

The special tools list identifies the nozzle tester 07909-31361, flywheel puller 07916-32011, and valve seat cutter set 07909-33102. Dimensioned drawings cover additional workshop-made bushing and bearing replacement tools.

English PDF and Included Pages

Supplied as one printable, English-language 124-page PDF: 122 manual pages, one Toro cover, and one blank page. The cover and blank page are already included in the total.