wsm V3307-DI-T-E2B Workshop Manual
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wsm V3307-DI-T-E2B Workshop Manual

wsm V3307-DI-T-E2B Workshop Manual

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WORKSHOP MANUAL
DIESEL ENGINE
V3307-DI-T-E2B
KiSC issued 01, 2009 A

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Summary of Contents for wsm V3307-DI-T-E2B

  • Page 1 WORKSHOP MANUAL DIESEL ENGINE V3307-DI-T-E2B KiSC issued 01, 2009 A...
  • Page 2 TO THE READER This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of V3307-DI-T-E2B. It is divided into three parts, “General”, “Mechanism” and “Servicing”. General Information on the engine identification, the general precautions, maintenance check list, check and maintenance and special tools are described.
  • Page 3 SAFETY INSTRUCTIONS V3307-DI-T-E2B, WSM SAFETY INSTRUCTIONS SAFETY FIRST This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully. It is essential that you read the instructions and safety regulations before you attempt to repair or use this unit.
  • Page 4 SAFETY INSTRUCTIONS V3307-DI-T-E2B, WSM SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Unauthorized modifications to the engine may impair the function and / or safety and affect engine life.
  • Page 5 SAFETY INSTRUCTIONS V3307-DI-T-E2B, WSM AVOID FIRES • Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks in your working area. • To avoid sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last.
  • Page 6 SAFETY INSTRUCTIONS V3307-DI-T-E2B, WSM PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher handy at all times. • Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone. KiSC issued 01, 2009 A...

  • Page 7: Specifications

    SPECIFICATIONS V3307-DI-T-E2B, WSM SPECIFICATIONS Model V3307-DI-T-E2B Number of Cylinder Type Vertical, water-cooled, 4-cycle DI diesel engine Bore × Stroke 94.0 × 120 mm (3.70 × 4.72 in.) Total Displacement 3331 cm (203.3 cu.in.) 47.1 kW / 2600 min (rpm) ISO Net Continuous (63.2 HP / 2600 min...

  • Page 8: Performance Curves

    PERFORMANCE CURVES V3307-DI-T-E2B, WSM PERFORMANCE CURVES V3307-DI-T-E2B (1) Brake Horsepower (3) B.S.F.C. (5) Gross Intermittent Torque (7) Gross Intermittent B.S.F.C. (2) Engine Speed (4) Torque (6) Gross Intermittent B.H.P. KiSC issued 01, 2009 A...
  • Page 9 DIMENSIONS V3307-DI-T-E2B, WSM DIMENSIONS V3307-DI-T-E2B KiSC issued 01, 2009 A...

  • Page 10: Table Of Contents

    GENERAL CONTENTS 1. ENGINE IDENTIFICATION ................G-1 [1] MODEL NAME AND ENGINE SERIAL NUMBER ........ G-1 [2] E2B ENGINE..................... G-3 [3] CYLINDER NUMBER ................G-3 2. GENERAL PRECAUTIONS ................G-4 3. MAINTENANCE CHECK LIST ............... G-5 4. CHECK AND MAINTENANCE ............... G-7 [1] DAILY CHECK POINTS................

  • Page 11: Engine Identification

    G GENERAL V3307-DI-T-E2B, WSM 1. ENGINE IDENTIFICATION [1] MODEL NAME AND ENGINE SERIAL NUMBER When contacting the manufacture, always specify your engine model name and serial number. The engine model and its serial number need to be identified before the engine can be serviced or parts replaced.
  • Page 12 G GENERAL V3307-DI-T-E2B, WSM • Month of manufacture Month Engine Lot Number January A0001 ~ A9999 B0001 ~ BZ999 February C0001 ~ C9999 D0001 ~ DZ999 March E0001 ~ E9999 F0001 ~ FZ999 April G0001 ~ G9999 H0001 ~ HZ999...

  • Page 13: E2B Engine

    V3307-DI-T-E2B, WSM [2] E2B ENGINE [Example : Engine Model Name V3307-DI-T-E2B-XXXX] The emission controls that have been put into effect in various countries to prevent air pollution will be stepped up. The time to enforce the regulations differs depending on the engine output classifications.

  • Page 14: General Precautions

    G GENERAL V3307-DI-T-E2B, WSM 2. GENERAL PRECAUTIONS • During disassembly, carefully arrange removed parts in a clean area to prevent confusion later. Screws, bolts and nuts should be replaced in their original position to prevent reassembly errors. • When special tools are required, use KUBOTA genuine special tools.

  • Page 15: Maintenance Check List

    G GENERAL V3307-DI-T-E2B, WSM 3. MAINTENANCE CHECK LIST To maintain long-lasting and safe engine performance, make it a rule to carry out regular inspections by following the table below. Service Interval Every Every Every Every 1 Every Every Every Item...
  • Page 16 G GENERAL V3307-DI-T-E2B, WSM NOTE Engine Oil : • Refer to the following table for the suitable American Petroleum Institute (API) classification of engine oil according to the engine type (with internal EGR, external EGR or non-EGR) and the Fuel Type Used : (Low Sulfur, Ultra Low Sulfur or High Sulfur Fuels).

  • Page 17: Check And Maintenance

    G GENERAL V3307-DI-T-E2B, WSM 4. CHECK AND MAINTENANCE [1] DAILY CHECK POINTS Checking Engine Oil Level 1. Level the engine. 2. To check the oil level, draw out the dipstick (1), wipe it clean, reinsert it, and draw it out again.
  • Page 18 G GENERAL V3307-DI-T-E2B, WSM Checking and Replenish Coolant 1. Without recovery tank (2) : Remove the radiator cap (1) and check to see that the coolant level is just below the port. With recovery tank (2) : Check to see that the coolant level lies between FULL (A) and LOW (B).

  • Page 19: Check Points Of Initial 50 Hours

    G GENERAL V3307-DI-T-E2B, WSM [2] CHECK POINTS OF INITIAL 50 HOURS Changing Engine Oil CAUTION • Be sure to stop engine before changing engine oil. 1. Start and warm up the engine for approx. 5 minutes. 2. Place an oil pan underneath the engine.
  • Page 20 G GENERAL V3307-DI-T-E2B, WSM Checking Fan Belt Tension 1. Measure the deflection (A), depressing the fan belt (2) halfway between the fan drive pulley and alternator pulley at specified force 98 N (10 kgf, 22 lbf). 2. If the measurement is not within the factory specifications, loosen the alternator mounting screws (1) and relocate the alternator to adjust.

  • Page 21: Check Point Of Every 50 Hours

    G GENERAL V3307-DI-T-E2B, WSM [3] CHECK POINT OF EVERY 50 HOURS Checking Fuel Hoses and Clamp Bands 1. If the clamp band (2) is loose, apply oil to the threads and securely retighten it. 2. The fuel hose (1) is made of rubber and ages regardless of the period service.

  • Page 22: Check Points Of Every 250 Hours

    G GENERAL V3307-DI-T-E2B, WSM [4] CHECK POINTS OF EVERY 250 HOURS Checking Fan Belt Tension 1. Measure the deflection (A), depressing the fan belt (2) halfway between the fan drive pulley and alternator pulley at specified force 98 N (10 kgf, 22 lbf).
  • Page 23 G GENERAL V3307-DI-T-E2B, WSM Cleaning Fuel Filter (Element Type only) 1. Close the fuel cock (3). 2. Unscrew the retaining ring (6) and remove the filter cup (5), and rinse the inside with kerosene. 3. Take out the element (4) and dip it in the kerosene to rinse.

  • Page 24: Check Points Of Every 500 Hours

    G GENERAL V3307-DI-T-E2B, WSM [5] CHECK POINTS OF EVERY 500 HOURS Changing Engine Oil CAUTION • Be sure to stop engine before changing engine oil. 1. Start and warm up the engine for approx. 5 minutes. 2. Place an oil pan underneath the engine.
  • Page 25 G GENERAL V3307-DI-T-E2B, WSM Replacing Fuel Filter Cartridge (Cartridge Type) Water and dust in fuel are collected in the filter cartridge. So, change the filter cartridge every 500 hours service. 1. Remove the used filter cartridge with filter wrench. 2. Apply a thin film of fuel to the surface of new filter cartridge gasket before screwing on.
  • Page 26 G GENERAL V3307-DI-T-E2B, WSM Anti-Freeze • There are two types of anti-freeze available: use the permanent type (PT) for this engine. • Before adding anti-freeze for the first time, clean the radiator interior by pouring fresh, soft water and draining it a few times.

  • Page 27: Check Point Of Every 1000 Hours

    G GENERAL V3307-DI-T-E2B, WSM [6] CHECK POINT OF EVERY 1000 HOURS Checking Valve Clearance IMPORTANT • Valve clearance must be checked and adjusted when engine is cold. 1. Remove the high pressure pipes, glow lead, glow plugs and the cylinder head cover.

  • Page 28: Check Points Of Every 1 Or 2 Months

    G GENERAL V3307-DI-T-E2B, WSM [7] CHECK POINTS OF EVERY 1 OR 2 MONTHS Recharging CAUTION • When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery.
  • Page 29 G GENERAL V3307-DI-T-E2B, WSM Battery Specific Gravity (for Refillable Battery’s only) 1. Check the specific gravity of the electrolyte in each cell with a hydrometer. 2. When the electrolyte temperature differs from that at which the hydrometer was calibrated, correct the specific gravity reading following the formula mentioned in (Reference).

  • Page 30: Check Points Of Every 1500 Hours

    G GENERAL V3307-DI-T-E2B, WSM [8] CHECK POINTS OF EVERY 1500 HOURS CAUTION • Check the nozzle injection pressure and condition after confirming that there is nobody standing in the direction the spray goes. • If the spray from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning may be caused.

  • Page 31: Check Points Of Every 3000 Hours

    G GENERAL V3307-DI-T-E2B, WSM [9] CHECK POINTS OF EVERY 3000 HOURS Checking Turbocharger (Turbine Side) 1. Check the exhaust port (2) and inlet port (4) side of turbine housing (3) to see if there is no exhaust gas leak. 2. If any gas leak is found, retighten the bolts and nuts or replace the gasket ((1) or (5)) with new one.
  • Page 32 G GENERAL V3307-DI-T-E2B, WSM Checking Injection Timing 1. Make sure of matching the injection timing align mark (1) of the injection pump unit and the flywheel housing, as shown in the illustration. 2. Remove the injection pipes. 3. Remove the stop solenoid.
  • Page 33 G GENERAL V3307-DI-T-E2B, WSM Checking Injection Pump (Fuel Tightness of Pump Element) 1. Remove the engine stop solenoid. 2. Remove the injection pipes. 3. Install the injection pump pressure tester (1) to the injection pump. 4. Install the injection nozzle (2) jetted with the proper injection pressure to the injection pump pressure tester (1).

  • Page 34: Check Points Of Every 1 Year

    G GENERAL V3307-DI-T-E2B, WSM [10] CHECK POINTS OF EVERY 1 YEAR Changing Engine Oil CAUTION • Be sure to stop engine before changing engine oil. 1. Start and warm up the engine for approx. 5 minutes. 2. Place an oil pan underneath the engine.

  • Page 35: Check Points Of Every 2 Years

    G GENERAL V3307-DI-T-E2B, WSM [11] CHECK POINTS OF EVERY 2 YEARS Changing Radiator Coolant (L.L.C.) CAUTION • Do not remove the radiator cap (1) when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
  • Page 36 G GENERAL V3307-DI-T-E2B, WSM (Continued) (Anti-freeze) • There are two types of anti-freeze available: use the permanent type (PT) for this engine. • Before adding anti-freeze for the first time, clean the radiator interior by pouring fresh, soft water and draining it a few times.
  • Page 37 G GENERAL V3307-DI-T-E2B, WSM Replacing Fuel Hoses and Clamp Bands 1. Loosen the clamp band (2) and remove the fuel hose (1). 2. Replace new fuel hose (1) and new clamp band (2). 3. Tighten the clamp band (2). CAUTION •...

  • Page 38: Special Tools

    G GENERAL V3307-DI-T-E2B, WSM 5. SPECIAL TOOLS Diesel Engine Compression Tester Code No : 07909-30208 (Assembly) Application : Use to measure diesel engine compression and diagnostics of need for major overhaul. (1) Gauge (7) Adaptor F (2) L Joint (8) Adaptor G...
  • Page 39 G GENERAL V3307-DI-T-E2B, WSM NOTE • The following special tools are not provided, make them referring to the figure. Injection Pump Pressure Tester Application : Use to check fuel tightness of injection pumps. Pressure gauge full scale : More than 29.4 MPa...
  • Page 40 G GENERAL V3307-DI-T-E2B, WSM Glow Plug Adapter Application : Use to check compression pressure through glow plug hole. 3.0 mm dia. (0.12 in. dia.) through hole 1.0 rad (60 °) 17.0 mm (0.669 in.) 1.0 mm (0.039 in.) 16.0 mm dia. (0.630 in. dia.) P0.5 17.0 mm (0.669 in.)
  • Page 41 G GENERAL V3307-DI-T-E2B, WSM Small End Bushing Replacing Tool Application : Use to press out and to press fit the small end bushing. [Press out] 157 mm (6.181 in.) 14.0 mm (0.5512 in.) 120 mm (4.7244 in.) 27.4 mm dia. (1.0787 in. dia.) 30.95 mm dia.
  • Page 42 G GENERAL V3307-DI-T-E2B, WSM Valve Guide Replacing Tool Application : Use to press out and press fit the valve guide. 225 mm (8.86 in.) 70 mm (2.8 in.) 45 mm (1.8 in.) 20 mm dia. (0.79 in dia.) 11.7 to 11.9 mm dia. (0.461 to 0.468 in. dia.) 6.50 to 6.60 mm dia.
  • Page 43 G GENERAL V3307-DI-T-E2B, WSM Front Cover Oil Seal Replacing Tool Application : Use to press fit the front cover oil seal. 120 mm (4.72 in.) 12.0 mm (0.472 in.) 2.90 to 3.00 mm (0.115 to 0.118 in.) 10.0 mm (0.394 in.) 80.0 mm (3.15 in.)
  • Page 44 G GENERAL V3307-DI-T-E2B, WSM Flywheel Housing Oil Seal Replacing Tool Application : Use to press fit the flywheel housing oil seal. 118 mm (4.65 in.) 12.0 mm (0.472 in.) 0.90 to 1.0 mm (0.036 to 0.039 in.) 10.0 mm (0.394 in.) 80.0 mm (3.15 in.)
  • Page 45 G GENERAL V3307-DI-T-E2B, WSM Valve Bridge Shaft Replacing Tool Application : Use to press fit the valve bridge shaft. 9.50 mm dia. (0.374 in. dia.) through hole 19.0 mm (0.748 in.) 23.2 mm (0.913 in.) 42.00 to 42.40 mm (1.654 to 1.669 in.) 12.5 mm dia.
  • Page 46 G GENERAL V3307-DI-T-E2B, WSM Crankshaft Sleeve Replacing Tool Application : Use to fix the crankshaft sleeve of the diesel engine. 1.50 mm (0.0591 in.) 33.0 mm (1.30 in.) 0.52 rad (30 °) 115 mm depth (4.53 in. depth) 34.925 to 34.950 mm dia. (1.3750 to 1.3759 in. dia.) 43.0 mm (1.69 in.)
  • Page 47 G GENERAL V3307-DI-T-E2B, WSM Engine Stand Application : Use to support engine. 107 mm (4.21 in.) 246 mm (9.68 in.) 21 mm (0.83 in.) 204 mm (8.03 in.) 102 mm (4.02 in.) 15 mm (0.59 in.) 59 mm (2.3 in.) 14 mm dia.
  • Page 48 G GENERAL V3307-DI-T-E2B, WSM Flywheel Housing Guide Application : Use to install the flywheel housing to the crankcase. 70.0 mm (2.76 in.) 8.0 mm (0.31 in.) 22.0 mm (0.866 in.) 30.0 mm (1.18 in.) 87.0 mm dia. (3.43 in. dia.) 82.036 to 82.071 mm dia.
  • Page 49 G GENERAL V3307-DI-T-E2B, WSM Injection Pump Gear Puller Application : Use for remove the injection pump gear from governor shaft. M35 x P1.5, 6.0 mm depth (0.24 in. depth) 35.0 mm dia., 12.0 mm depth (1.38 in. dia., 0.472 in. depth) 30.0 mm dia., 27.5 mm depth...
  • Page 50 G GENERAL V3307-DI-T-E2B, WSM Jig for Governor Connecting Rod Application : Use for connecting the governor connecting rod to the rack pin of the fuel injection pump assembly. 0.50 mm (0.020 in.) 5.0 mm (0.20 in.) 12.7 to 13.0 mm (0.500 to 0.511 in.) 4.0 mm (0.16 in.)
  • Page 51 MECHANISM CONTENTS 1. FEATURE ......................M-1 2. ENGINE BODY ....................M-2 [1] CYLINDER BLOCK................... M-2 [2] COOLING JACKET................... M-3 [3] HALF-FLOATING HEAD COVER ............M-3 [4] CYLINDER HEAD ..................M-4 [5] 4 SCREWS PER EACH CYLINDER ASSEMBLING STRUCTURE ..M-5 [6] CENTER DIRECT INJECTION SYSTEM (E-CDIS).......

  • Page 52: Feature

    ENGINE V3307-DI-T-E2B, WSM 1. FEATURE The 07 series DI engine are the vertical type 4-cycle diesel engine featuring the advanced performances shown below. This is a small sized, high power and environment conscious engine, which employs the four valve system, two inlet valves with double ports, and two exhaust valves with the new E-CDIS.

  • Page 53: Engine Body

    ENGINE V3307-DI-T-E2B, WSM 2. ENGINE BODY [1] CYLINDER BLOCK The 07 series DI engine employs ladder frame structure type crankcases - the crankcase 1 (1) with combustion part and the crankcase 2 (2) which supports the crankcase 1 (1). The following benefits are in the ladder frame structure.

  • Page 54: Cooling Jacket

    ENGINE V3307-DI-T-E2B, WSM [2] COOLING JACKET The 07 series DI engine employs coolant evenness distribution type cooling jacket inside crankcase 1. The coolant is evenly supplied to each cylinder through the main gallery (3) in the jacket mold core (2).

  • Page 55: Cylinder Head

    ENGINE V3307-DI-T-E2B, WSM [4] CYLINDER HEAD This engine employs four valve system, the cylinder head is provided with double intake passage in order to ensure appropriate air suction and give an optimum swirl. (1) Intake (2) Exhaust W1013336 KiSC issued 01, 2009 A...

  • Page 56: Screws Per Each Cylinder Assembling Structure

    ENGINE V3307-DI-T-E2B, WSM [5] 4 SCREWS PER EACH CYLINDER ASSEMBLING STRUCTURE The 07 series DI engine employs 4 screws per each cylinder assembling structure. The cylinder head (2) and the crankcase 2 (4) are assembled from the top and bottom to the crankcase 1 (3) with each of 10 screws.

  • Page 57: Center Direct Injection System (E-Cdis

    ENGINE V3307-DI-T-E2B, WSM [6] CENTER DIRECT INJECTION SYSTEM (E-CDIS) The 07 series DI engine adopts the Center Direct Injection System (E-CDIS), in which the injection nozzle (3) is positioned upright at the center of the cylinder. This system serves to inject fuel directly at the center of the cylinder.

  • Page 58: Gear Train Configuration

    ENGINE V3307-DI-T-E2B, WSM [7] GEAR TRAIN CONFIGURATION The 07 series DI engine employs gear train located at flywheel side. The following benefits are in the rear gear train configuration. 1. Flexibility of auxiliary parts arrangement. 2. Reduction of gear chattering noise from crankshaft of torsional and bending vibration.

  • Page 59: Lubricating System

    ENGINE V3307-DI-T-E2B, WSM 3. LUBRICATING SYSTEM [1] OIL COOLER The 07 series engine has a coolant-cooled oil cooler that not only cools hot oil, but also warms the cool engine oil shortly after start up. As shown in the figure, the oil flows inside the...

  • Page 60: Cooling System

    ENGINE V3307-DI-T-E2B, WSM 4. COOLING SYSTEM [1] THERMOSTAT Conventional thermostatically-controlled valves (outlet water temperature control type) open against the flow of coolant. In this design, the pressure (steam pressure + water pump’s discharge pressure) affects the open/close performance of such valve. In other words,...

  • Page 61: Bottom Bypass System

    ENGINE V3307-DI-T-E2B, WSM [2] BOTTOM BYPASS SYSTEM Bottom bypass system is introduced in the 07 series for improving the cooling performance of the radiator. While the temperature of coolant in the engine is low, the thermostat (1) is held closed and the coolant is allowed to flow through the bypass pipe and to circulate in the engine.

  • Page 62: Fuel System

    ENGINE V3307-DI-T-E2B, WSM 5. FUEL SYSTEM [1] GOVERNOR The engine employs the separated fuel injection pump in combination with Kubota’s own small multi- function mechanical governor, which enables more dependability. It also employs the torque limiting mechanism to control the maximum peak torque so that it complies with the regulations of exhaust gas.
  • Page 63 ENGINE V3307-DI-T-E2B, WSM At Idling Turn the speed control lever (2) clockwise to idle the engine. It tensions the governor spring (7) to pull the fork lever 2 (1). When the fork lever 2 (1) is pulled, it moves the torque spring pin (3) and the fork lever 1 (5) in the direction of the arrow A to restrain the weight.
  • Page 64 ENGINE V3307-DI-T-E2B, WSM To stop engine When the stop solenoid (1) is turned off, the spring tension of the solenoid is released, the rod extrudes and the stop lever moves the control rack in the direction of the arrow B which stops the engine.

  • Page 65: Stage Di Nozzle

    ENGINE V3307-DI-T-E2B, WSM [2] 2 STAGE DI NOZZLE Exhaust and noise regulations are becoming increasingly strict, particularly in regard to the reduction of NOx (nitrogen oxides) and particulates. The two-spring nozzle holder has been developed to reduce NOx (nitrogen oxides) and particulates from direct injection diesel engine exhaust.

  • Page 66: Injection Pump With F.s.p

    ENGINE V3307-DI-T-E2B, WSM A-B : First Spring’s Set Force B-C-D : Combined Force of First and Second Springs P1 : First Opening Pressure P2 : Second Opening Pressure L : Full Needle Valve Lift l : Needle Valve Pre-lift X1 : Cam Angle (°) Y1 : Injection Rate (mm3/°)

  • Page 67: Cpv Equipped Delivery Valve

    ENGINE V3307-DI-T-E2B, WSM [4] CPV EQUIPPED DELIVERY VALVE The Constant Pressure Valve (CPV) is a mechanism that maintains uniform residual pressure in the high pressure pipe. It stabilizes overall delivery quantity characteristics especially delivery quantity characteristics at low speeds. At high fuel pressure The delivery valve (1), the steel ball (5) and the snapper valve (6) are moved up together.

  • Page 68: Intake And Exhaust System

    ENGINE V3307-DI-T-E2B, WSM 6. INTAKE AND EXHAUST SYSTEM [1] TURBOCHARGER (1) Lock Nut (2) Thrust Bearing (3) Snap Ring (4) O-ring (5) Thrust Sleeve (6) Piston Ring (7) Turbine Wheel (8) Turbine Housing (9) Actuator (10) Compressor Wheel (11) Piston Ring...
  • Page 69 SERVICING CONTENTS 1. TROUBLESHOOTING ..................S-1 2. SERVICING SPECIFICATIONS ..............S-5 3. TIGHTENING TORQUES ................S-12 [1] TIGHTENING TORQUES FOR GENERAL USE SCREWS, BOLTS AND NUTS....................S-12 [2] TIGHTENING TORQUES FOR SPECIAL USE SCREWS, BOLTS AND NUTS....................S-13 4. CHECKING, DISASSEMBLING AND SERVICING........S-15 [1] CHECKING AND ADJUSTING ...............S-15 (1) Engine Body..................S-15 (2) Lubricating System ................S-17 (3) Cooling System ...................S-17...

  • Page 70: Troubleshooting

    ENGINE V3307-DI-T-E2B, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Engine Does Not No fuel Replenish fuel G-11 Start Air in the fuel system Vent air G-11 Water in the fuel system Change fuel and – repair or replace fuel...
  • Page 71 ENGINE V3307-DI-T-E2B, WSM Reference Symptom Probable Cause Solution Page Engine Revolution Is Fuel filter clogged or dirty Replace G-13, 15 Not Smooth Air cleaner clogged Clean or replace G-12, 24 Fuel leak due to loose injection pipe retaining nut Tighten retaining nut...
  • Page 72 ENGINE V3307-DI-T-E2B, WSM Reference Symptom Probable Cause Solution Page Deficient Output Incorrect injection timing Adjust S-20 Engine’s moving parts seem to be seizing Repair or replace – Injection pump malfunctioning Repair or replace S-21, 43 Deficient nozzle injection Repair or replace...
  • Page 73 ENGINE V3307-DI-T-E2B, WSM Reference Symptom Probable Cause Solution Page High Oil Pressure Different type of oil Use specified type of G-6, 9 Relief valve defective Replace S-46, 76 Engine Overheated Engine oil insufficient Replenish G-7, 9 Fan belt broken or elongated...

  • Page 74: Servicing Specifications

    ENGINE V3307-DI-T-E2B, WSM 2. SERVICING SPECIFICATIONS ENGINE BODY Item Factory Specification Allowable Limit Compression Pressure 3.92 MPa / 2.90 MPa / −1 −1 250 min (rpm) 250 min (rpm) 40.0 kgf/cm 29.6 kgf/cm −1 −1 250 min (rpm) 250 min...
  • Page 75 ENGINE V3307-DI-T-E2B, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Valve Spring (Intake and Exhaust) Setting Load / 63.5 N / 31.5 mm 45.9 N / Setting Length 6.48 kgf / 31.5 mm 31.5 mm 14.3 lbf / 1.24 in.
  • Page 76 ENGINE V3307-DI-T-E2B, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Camshaft Side Clearance – 0.10 mm 0.0039 in. Camshaft Alignment – 0.01 mm 0.0004 in. Cam Height Intake 37.50 mm 37.00 mm 1.476 in. 1.457 in. Exhaust 37.90 mm 37.40 mm...
  • Page 77 ENGINE V3307-DI-T-E2B, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Piston Ring to Piston Ring Groove Top Ring Clearance 0.050 to 0.090 mm 0.15 mm 0.0020 to 0.0035 in. 0.0059 in. Second Ring Clearance 0.090 to 0.12 mm 0.20 mm 0.0035 to 0.0047 in.
  • Page 78 ENGINE V3307-DI-T-E2B, WSM LUBRICATING SYSTEM Item Factory Specification Allowable Limit Engine Oil Pressure At Idle Speed – 49 kPa 0.50 kgf/cm 7.1 psi At Rated Speed 197 to 392 kPa 147 kPa 2.00 to 4.00 kgf/cm 1.50 kgf/cm 28.5 to 56.8 psi 21.3 psi...
  • Page 79 ENGINE V3307-DI-T-E2B, WSM FUEL SYSTEM Item Factory Specification Allowable Limit Injection Timing V3307-DI-T-E2B 0.00436 rad before – T.D.C. to 0.0218 rad after T.D.C. (0.250 ° before T.D.C. to 1.25 ° after T.D.C.) Pump Element Fuel Tightness – 18.63 MPa 190.0 kgf/cm...
  • Page 80 ENGINE V3307-DI-T-E2B, WSM ELECTRICAL SYSTEM Item Factory Specification Allowable Limit Approx. 0.95 Ω Glow Plug Resistance – Starter Commutator O.D. 32.0 mm 31.4 mm 1.26 in. 1.24 in. Mica Undercut 0.50 mm 0.20 mm 0.020 in. 0.0079 in. Brush Length 18.0 mm...

  • Page 81: Tightening Torques

    ENGINE V3307-DI-T-E2B, WSM 3. TIGHTENING TORQUES Screws, bolts and nuts must be tightened to the specified torque using a torque wrench, several screws, bolts and nuts such as those used on the cylinder head must be tightened in proper sequence and the proper torque.

  • Page 82: Tightening Torques For Special Use Screws, Bolts And Nuts

    ENGINE V3307-DI-T-E2B, WSM [2] TIGHTENING TORQUES FOR SPECIAL USE SCREWS, BOLTS AND NUTS NOTE • For “*” marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before tightening. • The letter “M” in Size x Pitch means that the screw, bolt or nut dimension stands for metric. The size is the nominal outside diameter in mm of the threads.
  • Page 83 ENGINE V3307-DI-T-E2B, WSM Item Size x Pitch N·m kgf·m lbf·ft Rocker arm bracket screw M10 x 1.25 49 to 55 5.0 to 5.7 37 to 41 *Cylinder head mounting screw M14 x 1.5 187 to 196 19.0 to 20.0 138 to 144 Injection pump gear mounting nut M16 x 1.5 -LH...

  • Page 84: Checking, Disassembling And Servicing

    ENGINE V3307-DI-T-E2B, WSM 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING (1) Engine Body Compression Pressure 1. After warming up the engine, shut it down and remove the air cleaner, the muffler, breather tube, glow lead and all glow plugs.
  • Page 85 ENGINE V3307-DI-T-E2B, WSM Valve Clearance IMPORTANT • Valve clearance must be checked and adjusted when engine is cold. 1. Remove the high pressure pipes, glow lead, glow plugs and the cylinder head cover. 2. Align the 1TC mark of flywheel and the convex of flywheel housing timing windows so that the first piston (front cover side) comes to the compression top dead center.

  • Page 86: Lubricating System

    ENGINE V3307-DI-T-E2B, WSM (2) Lubricating System Engine Oil Pressure 1. Remove the oil switch and set a pressure tester (Code No. 07916-32032). 2. Start the engine. After warming up, measure the oil pressure of both idling and rated speeds. 3. If the oil pressure is less than the allowable limit, check the following.
  • Page 87 ENGINE V3307-DI-T-E2B, WSM Fan Belt Damage and Wear 1. Check the fan belt for damage. 2. If the fan belt is damaged, replace it. 3. Check if the fan belt is worn and sunk in the pulley groove. 4. If the fan belt is nearly worn out and deeply sunk in the pulley groove, replace it.
  • Page 88 ENGINE V3307-DI-T-E2B, WSM Thermostat Valve Opening Temperature 1. Push down the thermostat valve and insert a string between the valve and the valve seat. 2. Place the thermostat and a thermostat in a container with water and gradually heat the water.

  • Page 89: Fuel System

    ENGINE V3307-DI-T-E2B, WSM (4) Fuel System Injection Timing 1. Make sure of matching the injection timing align mark (1) of the injection pump unit and the flywheel housing, as shown in the illustration. 2. Remove the injection pipes. 3. Remove the stop solenoid.
  • Page 90 ENGINE V3307-DI-T-E2B, WSM Fuel Tightness of Pump Element 1. Remove the engine stop solenoid. 2. Remove the injection pipes. 3. Install the injection pump pressure tester (1) to the injection pump. 4. Install the injection nozzle (2) jetted with the proper injection pressure to the injection pump pressure tester (1).
  • Page 91 ENGINE V3307-DI-T-E2B, WSM CAUTION • Check the nozzle injection pressure and condition after confirming that there is nobody standing in the direction the spray goes. • If the spray from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning may be caused.

  • Page 92: Electrical System

    ENGINE V3307-DI-T-E2B, WSM (5) Electrical System CAUTION • To avoid accidental short circuit, be sure to attach the positive cable to the positive terminal before the negative cable is attached to the negative terminal. • Never remove the battery cap while the engine is running.
  • Page 93 ENGINE V3307-DI-T-E2B, WSM Battery Specific Gravity (for Refillable Battery’s only) 1. Check the specific gravity of the electrolyte in each cell with a hydrometer. 2. When the electrolyte temperature differs from that at which the hydrometer was calibrated, correct the specific gravity reading following the formula mentioned in (Reference).
  • Page 94 ENGINE V3307-DI-T-E2B, WSM Motor Test CAUTION • Secure the starter to prevent it from jumping up and down while testing the motor. 1. Disconnect the battery negative cable from the battery. 2. Disconnect the battery positive cable from the battery.
  • Page 95 ENGINE V3307-DI-T-E2B, WSM Alternator on Unit Test (Before testing) • Before alternator on unit test, check the battery terminal connections, circuit connection, fan belt tension, charging indicator lamp, fuses on the circuit, and abnormal noise from the alternator. • Prepare full charged battery for the test.

  • Page 96: Turbocharger

    ENGINE V3307-DI-T-E2B, WSM (6) Turbocharger Turbine Side 1. Check the exhaust port (2) and inlet port (4) side of turbine housing (3) to see if there is no exhaust gas leak. 2. If any gas leak is found, retighten the bolts and nuts or replace the gasket (1) / (5) with new one.

  • Page 97: Disassembling And Assembling

    ENGINE V3307-DI-T-E2B, WSM [2] DISASSEMBLING AND ASSEMBLING (1) Draining Oil and Coolant Draining Engine Oil 1. Start and warm up the engine for approx. 5 minutes. 2. Place an oil pan underneath the engine. 3. Remove the drain plug (1) to drain oil.
  • Page 98 ENGINE V3307-DI-T-E2B, WSM CAUTION • While the engine is running and or just after it stops, the turbocharger is hot, be careful not to touch the turbocharger. NOTE • When detaching and attaching the turbocharger assembly, be very careful not to allow dust, dirt and other foreign matter in the oil pipes.
  • Page 99 ENGINE V3307-DI-T-E2B, WSM Turbocharger Assembly and Exhaust Manifold 1. Remove the cover (1) and exhaust manifold mounting screws (3). 2. Take off the turbocharger assembly (4) with exhaust manifold (2). 3. Remove the oil pipe 1 (6) and oil pipe 2 (9). (If necessary) 4.

  • Page 100: Cylinder Head And Valves

    ENGINE V3307-DI-T-E2B, WSM (3) Cylinder Head and Valves Cylinder Head Cover 1. Remove the glow lead (4) and the glow plugs (3). 2. Remove the injection pipes (1). 3. Remove the cylinder head cover (2). (When reassembling) • Check to see that the cylinder head cover gasket is not detective.
  • Page 101 ENGINE V3307-DI-T-E2B, WSM Nozzle Holder 1. Remove the overflow pipe (1). 2. Remove the nozzle holder clamps (2), nozzle holder assembly (3) and nozzle gaskets. (When reassembling) • Be sure to place the nozzle gaskets and the O-rings (4). 24 to 27 N·m Nozzle holder clamp screw 2.4 to 2.8 kgf·m...
  • Page 102 ENGINE V3307-DI-T-E2B, WSM Injection Nozzle Oil Seal (If necessary) 1. Remove the injection nozzle oil seal (2) from cylinder head cover (1). (When reassembling) • When installing the injection nozzle oil seal (2), use new one. (1) Cylinder Head Cover...
  • Page 103 ENGINE V3307-DI-T-E2B, WSM Selecting Cylinder Head Gasket Replacing the Cylinder Head Gasket 1. Make sure to note the notch (a), (b) or (c) of cylinder head gasket (1) in advance. 2. Replace the same notch (a), (b) or (c) as the original cylinder head gasket (1).

  • Page 104: Thermostat

    ENGINE V3307-DI-T-E2B, WSM Valve 1. Remove the valve spring collets (1) after compressing the valve spring (3) with the valve spring retainer (2). (When reassembling) • Wash the valve stem and valve guide hole, and apply engine oil sufficiently. • After installing the valve spring collets (1), lightly tap the stem tip to assure proper fit with a plastic hammer.

  • Page 105: Injection Pump Unit

    ENGINE V3307-DI-T-E2B, WSM (5) Injection Pump Unit Injection Pump Unit (Removing the fuel injection pump unit) 1. Detach the window cover (2) for the fuel injection pump unit from the flywheel housing and remove the oil cap (3). 2. Place the piston of the 4th cylinder at the top dead center in the compression stroke.
  • Page 106 ENGINE V3307-DI-T-E2B, WSM (Continued) (Reassembling the fuel injection pump unit) 1. Place the piston of the 4th cylinder at the top dead center in the compression stroke. Fix the flywheel with the flywheel stopper. 2. Install the injection pump unit to the crankcase 1.
  • Page 107 ENGINE V3307-DI-T-E2B, WSM Governor Housing Assembly 1. Remove the injection pump unit from the engine. (See the “Injection Pump Unit”.) 2. Remove the lubricating oil pipe (3). 3. Remove the stop solenoid (2). 4. Detach the sight cover (1) from the injection pump unit.
  • Page 108 ENGINE V3307-DI-T-E2B, WSM Governor Fork Lever Assembly 1. Pull off the governor fork lever shaft (2) with the extra bolt (Dia. : 4.0 mm (0.16 in.), Pitch : 0.7 mm (0.03 in.), Length : more than 25 mm (0.98 in.)) (1).
  • Page 109 ENGINE V3307-DI-T-E2B, WSM Governor Lever 1. Remove the spring pin (3). 2. Remove the speed control lever (2) and the return spring (1). 3. Remove the governor lever assembly (4) from the governor housing. 4. Remove the start spring (6).
  • Page 110 ENGINE V3307-DI-T-E2B, WSM Fuel Camshaft and Governor Weight 1. Separate the governor housing assembly from the injection pump unit. (See the “Injection Pump Unit”.) 2. Remove the governor sleeve (1). 3. Remove the injection pump assembly (4). 4. Remove the fuel camshaft lock screws.
  • Page 111 ENGINE V3307-DI-T-E2B, WSM (Continued) 1. Pull out the injection pump gear using gear puller (1). (Refer to “5. SPECIAL TOOLS” at “GENERAL” section.) 2. Loosen the fuel camshaft stopper mounting screws (2) and remove the fuel camshaft stopper (3). 3. Pull out the fuel camshaft (8) and bearings (9) together.
  • Page 112 ENGINE V3307-DI-T-E2B, WSM Replacing Injection Pump Assembly (If necessary) • The injection pump can be replaced with the crankshaft in whatever position. 1. Disconnect all injection pipes (4). 2. Disconnect the fuel hose (2) and fuel overflow pipe (3). 3. Disconnect the connector from the stop solenoid (5).
  • Page 113 ENGINE V3307-DI-T-E2B, WSM Installing Procedure of Injection Pump Assembly 1. Install the fuel injection pump assembly (2) in its unit (1), and tighten the mounting screws and nuts. 2. Hook the governor connecting rod (4) to the rack pin (5) of the fuel injection pump assembly (2).

  • Page 114: Water Pump And Oil Cooler

    ENGINE V3307-DI-T-E2B, WSM (Continued) 1. Move the stop lever (1) and visually check to see if the fuel injection pump control rack comes smoothly back to the start position by the counter force of the start spring. 2. If the control rack fails to move back smoothly, remove the start spring and the lock nut, take the above steps from 2 of the former page again.

  • Page 115: Front Cover

    ENGINE V3307-DI-T-E2B, WSM Oil Cooler 1. Remove the water pipe (2). 2. Remove the oil filter cartridge (1) and the oil cooler joint screw (3). 3. Remove the oil cooler (4). 40 to 44 N·m Tightening torque Oil cooler joint screw 4.0 to 4.5 kgf·m...

  • Page 116: Flywheel And Timing Gears

    ENGINE V3307-DI-T-E2B, WSM (8) Flywheel and Timing Gears Side PTO (Option) 1. Remove the PTO cover 2 (2) from the flywheel housing (1). 2. Remove the PTO cover 1 (3) with PTO gear assembly (5) from the flywheel housing (1).
  • Page 117 ENGINE V3307-DI-T-E2B, WSM Flywheel 1. Install the stopper (1) to the flywheel (2) so that the flywheel (2) does not turn. NOTE • Do not use an impact wrench. Serious damage will occur. • There is one positioning pin in the crankshaft gear and it is installed in the flywheel (2).
  • Page 118 ENGINE V3307-DI-T-E2B, WSM Flywheel Housing 1. Remove the outside flywheel housing mounting screws (2). 2. Remove the inside flywheel housing mounting screws (4). 3. Remove the flywheel housing (3). (When reassembling) • Apply engine oil to the flywheel housing oil seal (6).
  • Page 119 ENGINE V3307-DI-T-E2B, WSM Camshaft and Idle Gear 1. Rotate the cylinder head side of the engine crankcase to the lower side. 2. Remove the camshaft set screws (7) and draw out the cam gear (4). 3. Remove the idle gear mounting screws (8) and draw out the idle gear (2).

  • Page 120: Piston And Connecting Rod

    ENGINE V3307-DI-T-E2B, WSM (9) Piston and Connecting Rod Oil Pan and Oil Strainer 1. Unscrew the oil pan mounting screws (1) and remove the oil pan (2). 2. Unscrew the oil strainer mounting screws (4), and remove the oil strainer (5).
  • Page 121 ENGINE V3307-DI-T-E2B, WSM Connecting Rod Cap 1. Remove the connecting rod screws (1) from connecting rod cap. 2. Remove the connecting rod caps. (When reassembling) • Align the marks (a) with each other. (Face the marks toward the injection pump.) •...
  • Page 122 ENGINE V3307-DI-T-E2B, WSM Piston Ring and Connecting Rod 1. Remove the piston rings using a piston ring tool. 2. Remove the piston pin (7), and separate the connecting rod (6) from the piston (5). (When reassembling) • Be sure to fix the crankpin bearing I.D.color (B) and the connecting rod I.D.color (A) are same colors.

  • Page 123: Crankshaft And Crankcase

    ENGINE V3307-DI-T-E2B, WSM (10) Crankshaft and Crankcase Crankshaft and Crankcase 1. Remove the crankcase 2 mounting screw and crankcase 2 flange screw in the order of Z to A. 2. Remove the crankcase 2 (1) from the crankcase 1 (2).
  • Page 124 ENGINE V3307-DI-T-E2B, WSM (Continued) (When reassembling) • Make sure the crankcase 1 (4) and 2 (1) are clean. • Reassemble the crankshaft bearing (3) into crankcase 1 (4) and 2 (1). • Reassemble the thrust bearing (2), with the oil groove facing outside, into both flywheel housing edge journal side of the crankcase 1 (4) and 2 (1).

  • Page 125: Starter

    ENGINE V3307-DI-T-E2B, WSM (11) Starter Disassembling Motor 1. Disconnect the solenoid switch (3). 2. Remove the 2 through screws (9) and the 2 brush holder lock screws. Take out the rear end frame (13) and the brush holder (12). 3. Disconnect the armature (10) and the yoke (11). Remove also the ball (7) from the tip of the armature (10).
  • Page 126 ENGINE V3307-DI-T-E2B, WSM Pulley 1. Hold the rotor (base of the claw) in a vise. Loosen the lock nut using a M24 box wrench. 58.4 to 78.9 N·m Tightening torque Alternator pulley nut 5.95 to 8.05 kgf·m 43.1 to 58.2 lbf·ft...
  • Page 127 ENGINE V3307-DI-T-E2B, WSM Reassembling the Brush 1. Fit the brush with its sliding face in the clockwise direction when viewed from front. IMPORTANT • Be sure to keep the 2 brushes deep in the brush holder. Otherwise the rotor and the rear section can not be fitted into the position.

  • Page 128: Servicing

    ENGINE V3307-DI-T-E2B, WSM [3] SERVICING (1) Cylinder Head and Valves Top Clearance 1. Remove the cylinder head (remove the cylinder head gasket completely). 2. Bring the piston to its top dead center, fasten fuse wires (Dia. : 1.5 mm (0.059 in.), long : 5.0 to 7.0 mm (0.20 to 0.28 in.)) (1) to 3 to 4 spots on the piston top with grease so as to avoid the intake and exhaust valves and the combustion chamber ports.
  • Page 129 ENGINE V3307-DI-T-E2B, WSM Cylinder Head Flaw 1. Prepare an air spray red check. 2. Clean the surface of the cylinder head with the detergent (2). 3. Spray the cylinder head surface with the red permeative liquid (1). Leave it five to ten minutes after spraying.
  • Page 130 ENGINE V3307-DI-T-E2B, WSM Clearance between Valve Stem and Valve Guide 1. Remove carbon from the valve guide section. 2. Measure the valve stem O.D. with an outside micrometer. 3. Measure the valve guide I.D. of the cylinder head at the most wear part as shown in the figure below with a small hole gauge.
  • Page 131 ENGINE V3307-DI-T-E2B, WSM Correcting Valve and Valve Seat NOTE • Before correcting the valve and seat, check the valve stem and the I.D. of valve guide section, and repair them if necessary. • After correcting the valve seat, be sure to check the valve recessing.
  • Page 132 ENGINE V3307-DI-T-E2B, WSM Valve Spring Setting Load 1. Place the valve spring on a tester and compress it to the same length it is actually compressed in the engine. 2. Read the compression load on the gauge. 3. If the measurement is less than the allowable limit, replace it.
  • Page 133 ENGINE V3307-DI-T-E2B, WSM Replacing Valve Bridge Shaft 1. Remove the used valve bridge shaft (2). 2. Clean the valve bridge shaft mounting hole. 3. Using valve bridge shaft replacing tool (3), press in the new shaft. (Refer to “5. SPECIAL TOOLS” at “GENERAL” section.) (1) Valve Bridge Arm A : 31.1 to 31.7 mm (1.23 to 1.24 in.)

  • Page 134: Timing Gears

    ENGINE V3307-DI-T-E2B, WSM (2) Timing Gears Timing Gear Backlash 1. Set a dial indicator (lever type) with its tip on the gear tooth. 2. Move the gear to measure the backlash, holding its mating gear. 3. If the backlash exceeds the allowable limit, check the oil clearance of the shafts and the gear.
  • Page 135 ENGINE V3307-DI-T-E2B, WSM Replacing Idle Gear Bushing (When removing) 1. Using an idle gear bushing replacing tool, press out the used bushing. (Refer to “5. SPECIAL TOOLS” at “GENERAL” section.) (When installing) 1. Clean a new idle gear bushing and idle gear bore, and apply engine oil to them.

  • Page 136: Piston And Connecting Rod

    ENGINE V3307-DI-T-E2B, WSM Oil Clearance between Camshaft Journal and Cylinder Block Bore 1. Measure the camshaft journal O.D. with an outside micrometer. 2. Measure the cylinder block bore I.D. for camshaft with an inside micrometer. 3. If the clearance exceeds the allowable limit, replace the camshaft.
  • Page 137 ENGINE V3307-DI-T-E2B, WSM Oil Clearance between Piston Pin and Small End Bushing 1. Measure the O.D. of the piston pin where it contacts the bushing with an outside micrometer. 2. Measure the I.D. of the piston pin bushing at the connecting rod small end with a cylinder gauge.
  • Page 138 ENGINE V3307-DI-T-E2B, WSM Piston Ring Gap 1. Insert the piston ring into the lower part of the liner (the least worn part) with the piston. 2. Measure the ring gap with a feeler gauge. 3. If the gap exceeds the allowable limit, replace the piston ring.

  • Page 139: Crankshaft

    ENGINE V3307-DI-T-E2B, WSM (4) Crankshaft Crankshaft Side Clearance 1. Set a dial indicator with its tip on the end of the crankshaft (1). 2. Measure the side clearance by moving the crankshaft (1) to the front and rear. 3. If the measurement exceeds the allowable limit, replace the thrust bearings.
  • Page 140 ENGINE V3307-DI-T-E2B, WSM Oil Clearance between Crankpin and Crankpin Bearing 1. Clean the crankpin and crankpin bearing (4). 2. Put a strip of plastigage on the center of the crankpin. 3. Install the connecting rod cap (1) and tighten the connecting rod screws (2) to the specified torque, and remove the cap again.
  • Page 141 ENGINE V3307-DI-T-E2B, WSM Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1. Clean the crankshaft journal (2) and crankshaft bearing. 2. Put a strip of press gauge on the center of the journal. IMPORTANT • Never insert the press gauge into the oil hole of the journal.
  • Page 142 ENGINE V3307-DI-T-E2B, WSM Replacing Crankshaft Sleeve 1. Remove the used crankshaft sleeve (2). 2. Set the sleeve guide (3) to the crankshaft gear (1). 3. Heat a new crankshaft sleeve (2) to a temperature between 150 and 200 °C (302 and 392 °F), and fix the sleeve to the crankshaft as shown in figure.

  • Page 143: Cylinder

    ENGINE V3307-DI-T-E2B, WSM Replacing Front Cover Oil Seal 1. Remove the used front cover oil seal (2). 2. Clean a new front cover oil seal (2) and apply engine oil to it. 3. Install the new oil seal (2) using the front cover oil seal replacing tool (1).

  • Page 144: Oil Pump

    ENGINE V3307-DI-T-E2B, WSM Correcting Cylinder (Oversize) 1. When the cylinder is worn beyond the allowable limit, bore and hone it to the specified dimension. 94.500 to 94.522 mm Cylinder I.D. (Oversize) Factory spec. 3.7205 to 3.7213 in. 94.65 mm Maximum wear Allowable limit 3.726 in.

  • Page 145: Relief Valve

    ENGINE V3307-DI-T-E2B, WSM (7) Relief Valve Free Length of Relief Valve Spring 1. Measure the free length (A) with vernier calipers. If the measurement is less than the allowable limit, replace it. 2. Check the entire surface of the spring for scratches. Replace it, if any.
  • Page 146 ENGINE V3307-DI-T-E2B, WSM Commutator and Mica 1. Check the contact face of the commutator for wear, and grind the commutator with emery paper if it is slightly worn. 2. Measure the commutator O.D. with an outside micrometer at several points.

  • Page 147: Alternator

    ENGINE V3307-DI-T-E2B, WSM Armature Coil 1. Check the continuity across the commutator and armature coil core with an ohmmeter. 2. If it conducts, replace the armature. 3. Check the continuity across the segments of the commutator with an ohmmeter. 4. If it does not conduct, replace the armature.
  • Page 148 ENGINE V3307-DI-T-E2B, WSM Stator 1. Measure the resistance across each lead of the stator coil with resistance range of circuit tester. 2. If the measurement is not within factory specification, replace it. 3. Check the continuity across each stator coil lead and core with resistance range of circuit tester.
  • Page 149 EDITOR : KUBOTA FARM & INDUSTRIAL MACHINERY SERVICE, LTD. 64, ISHIZU-KITAMACHI, SAKAI-KU, SAKAI-CITY, OSAKA, 590-0823, JAPAN PHONE : ( 81 ) 72-241-1129 : ( 81 ) 72-245-2484 E-mail : ksos-pub@kubota.co.jp KUBOTA Corporation Printed in Japan 2008. 11, S, EI, EI, e Code No.9Y111-03160...

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