Transcription of Diesel Engine Basics
1 Diesel Engine Basics4 Stroke Cycle EngineIntakeCompressionCombustionExhaust AIR HEATS WHEN COMPRESSEDC ompression Temperature & Auto Ignition TemperatureA: Diesel Fuel Auto IgnitionTemperatureB: Air TemperatureInitial 32 FC: Air TemperatureInitial 100 F1428435542649856971145213 CompressionPressure ( psi )Temperature( F )322123925727529321112A:Fuel Injection TimingB:End of Injection1:Ignition Delay Period2:Pre-flame3:Diffuse Combustion4:After BurningTDC-20-402040420psi850psi1280psiC ombustion PressuresKubota Engine ReviewENGINE MODEL IDENTIFICATION How to read the model name Ex.: V1505-E V=Number of CylindersE= Eine; 1 cylinder engineZ= Zwei; 2 cylinder engineD= Drei; 3 cylinder engineV= Vier; 4 cylinder engineF= Funf; 5 cylinder engineS= Sechs; 6 cylinder engineENGINE MODEL IDENTIFICATION How to read the model number Ex: V1505-E 1505=Approximate Displacement (cc.)662= 656 cc722= 719 cc1105= 1123 cc1505= 1498cc1903= 1857 cc2203= 2197 cc3300= 3318ccENGINE MODEL IDENTIFICATION How to read the model number Series of engines:-NSM: Z482, D662, D722(68 mm stroke)-03 Series: D1703, V2203( mm stroke)-05 Series: D905, V1205( mm stroke) -05 Series: D1105, V1505( mm stroke) Engine MODEL IDENTIFICATION How to read the model number Ex: V1505-E E=for Environmental / Ecological [Clean Engine ] Being Regulated : CARB; ULGE Reg.
2 Below 25HP :EPA; SI Reg. Below 25HP :EPA; Non-road CI Reg. 19 to 37kW :EPA; Non-road CI Reg. 37 to 75kW JAPAN: MOC; Tunnel Construction to 260kW EU: Non-road CI Reg. Exc. to 75kW Under Consideration JAPAN: EA; Special Vehicles 19 kW & AboveINTERCHANGEABILITY New Super Mini Series(68 mm stroke) Z482/D662/D722 05 Series( mm stroke) D905/D1005/V1205/V1305. D1105/V1505 03 Series( mm stroke) D1403/D1703/V1903/V2003-T/V2203 Note:All Engine parts will not be interchangeable within an Engine stroke family, but approximately 88% will be interchangeable. This benefit allows for parts to be stocked for many popular engines, with lower investment expense. HOW to Read Serial NumberThe SERIAL NUMBER is an identified number for the is marked after the model Serial No. has been applied since January , indicates month & year of manufacture as of manufactureYear1998199920002001200220032 00420052006200720082009 CodeWXY123456789 month of manufacture Serial 0001 9999 ACEGJLNQSUWY 0001 9999(actually 10000 19998)BDFHKMPRTVXZ D722-WA0001 W indicates 1998 and A indicates January.
3 So ,WA indicates that the Engine was manufactured on January , CurvesPower CurvesHp = (t x rpm) / 5252 Torque = (hp x 5252) / rpmTypical Kubota EngineHigh Mounted CamshaftInjectionPump In BlockTwo Types of Oil Pump Mounting for Kubota EnginesLarge Main Bearing Cases for Tunnel Block DesignCylinderLinerMain JournalWater Jacket Tunnel type CrankcaseV3300-Split Crankcase1) Crankcase 12) Crankcase 23) Oil PanCrankshaftCrankshaftMain Bearing split typeCrankshaftSleeveMain Bearingsolid typeThrust BearingCylinder HeadValveGuideHead GasketCylinder HeadNozzleIntakeExhaustDI and IDIcombustion types DI03 seriesI D I70mm and 82mm familiesE-TVCSGlow PlugNozzleThree VortexFan-shaped ConcaveValve RecessCombustion ChamberV3300 -3 Valves per Cylinder 2 Intake Valves per Cylinder 2 Intake Ports per Cylinder for reduced turbulence in ports Significant increase in combustion efficiencyV3300 -Modified E-TVCSP iston & Piston RingTop RingSecond RingOil RingFan-Shaped ConcaveValve RecessScuff ResistanceGroovesValve MechanismCamshaftPush RodTappetIn/Ex ValveValve SpringRocker ArmI D I70mm and 82mm familiescombustion chamber capsReplacement caps70mm stroke series15261-03142(D650 15281-03142)
4 82mm stroke series15521-03143D1402, V1902, S280015291-03143Z751, Z851, D1101, D1301D1102, D1302, V1502,V1702, S2200, S2600 EngineOverhaul MarksMain Bearing Cases:Marked Flywheel on flywheel side of caseConnecting Rod:Numbers must line up, and must be installed toward injection pump sidePistons: Indentation on piston must be toward injection pump side of Engine .
