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Doosan P222LE-1 EAYOB/QB Engine

The Doosan P222LE-1 EAYOB/QB is a 21.93 L 12-cylinder turbo charged & intercooled engine rated at 1800 rpm, producing up to 553 kW. It powers generator sets from Doosan, including the P222LE.

Also known as: DOOSAN P222LE-1 EAYOB/QB

21.927 L
Displacement
12
Cylinders
1800 rpm
Rated speed
553 kW
Gross power

Engine specifications

Displacement21.927 L
Cylinders12
Aspirationturbo charged & intercooled
Rated speed1800 rpm
Gross power553 kW

Service intervals

16
ItemActionHoursMonthsNotes
Fuel injection timingCheck200 hrWhen necessary
Fuel strainer of fuel feed pumpClean200 hrClean every engine oil replacement; also after every 200 hours
Fuel-water separatorDrain200 hrDrain water in separator; section 2.2.10 states every 1,200 hours
Injection nozzlesCheck200 hrWhen necessary
Lubricating oilChange200 hrFirst service — First oil change at 50 hr operating
Oil filter cartridgeReplace200 hrFirst service — Replace simultaneously with engine oil change; first at 50 hr
Fuel filter elementReplace400 hrSection 2.2.23 states every 400 hours
Air cleaner elementClean600 hrRenew every two years or 4,000 hours; clean up to 5 times
Intercooler air finsClean600 hr
Compression pressureCheck800 hrWhen necessary
Fuel tankDrain800 hrRemove sediment from fuel tank
Coolant waterChange2000 hrChange the coolant water
RadiatorClean2000 hr
TurbochargerClean2000 hr
V-belt tensionAdjust2000 hrSection 5.8 states V-belt tension checked after every 2,000 hours
Intake/exhaust valve clearanceAdjustFirst service — First at break-in; then when necessary

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

56
TypeItemValueUnitCondition
ClearanceCamshaft axial end play0.20~0.90mm
ClearanceCrankshaft end play (standard / limit)0.190~0.322 / 0.452mm
ClearanceCylinder head lower face warpage (standard / limit)0.05 or less / 0.2mm
ClearanceCylinder liner inner diameter (standard / limit)φ127.990~φ128.010 / φ128.16mm
ClearanceMain bearing oil gap (standard / limit)0.066~0.132 / 0.166mm
ClearancePiston ring gap 2nd ring (standard / limit)0.40~0.60 / 1.5mm
ClearancePiston ring gap oil ring (standard / limit)0.40~0.70 / 1.5mm
ClearancePiston ring gap top ring (standard / limit)0.35~0.55 / 1.5mm
ClearancePiston to cylinder liner clearance0.233~0.271mm
ClearanceRocker arm bearing clearance (standard / limit)0.015~0.068 / 0.25mm
ClearanceTappet clearance (standard / limit)0.035~0.077 / 0.25mm
GapMagnetic speed sensor to ring gear air gapnot smaller than 0.020 in (0.45 mm)mmengine stopped
GapTacho sensor gapabout 1.0mmtolerance limit 27° (gap ± 0.1 mm)
PressureBypass for entire oil filter valve opening pressure4.5 ± 0.2kg/cm2
PressureBypass for filter element valve opening pressure2.1 ± 0.3kg/cm2
PressureCompression pressure28kg/cm2at 200 rpm, water temperature 20°C
PressureCompression pressure limit24kg/cm2
PressureFuel injection pressure (new nozzle holder)300 + 8kg/cm2
PressureFuel injection pressure (used nozzle holder)285 + 8kg/cm2
PressureOil pressure at idling0.9~3.0bar
PressureOil pressure at rated speed / full load3.0~6.5bar
PressureOverflow valve operating pressure of injection pump1.3~1.8bar
PressureRelief valve opening pressure8.5~10kg/cm2
SpeedSpeed control unit governor speed range1K~7.5KHzcontinuous
TemperatureCoolant temperature during operation80~95°C
TemperatureOil temperatureless than 110°C
TemperatureThermostat open wide at85°C
TemperatureThermostat opens at71°C
TorqueAlternator bracket (M14)12kg.m
TorqueBearing cap side bolt (M12 x 1.5)8kg.m
TorqueCam shaft timer (M10)9kg.m
TorqueConnecting rod cap bolt (M16 x 1.5)Initial 10 kg.m + rotating angle 90°kg.m
TorqueCooling fan (M8)2.2kg.m
TorqueCounterweight (M16 x 1.5)21kg.m
TorqueCrankshaft pulley (M16 x 1.5)21kg.m
TorqueCylinder head bolt (M15 x 2, strength 12.9)8 kg.m + 15 kg.m + angle 90° + angle 90°kg.m
TorqueCylinder head bolt (after repair, angle-of-rotation method)10 N.m -> 80 N.m -> 150 N.m -> 90° -> 90°N.mengine cold
TorqueCylinder head cover (M8)2.2kg.m
TorqueExhaust manifold (M10)5.0kg.m
TorqueFlywheel (M16 x 1.5)26kg.m
TorqueFlywheel housing cover bolt (M8)7.5kg.m
TorqueFlywheel housing tightening bolt (M12 x 1.5)10kg.m
TorqueFuel filter (M12 x 1.5)8kg.m
TorqueFuel injection nozzle holder (M28, CK60)7 ± 0.5kg.m
TorqueFuel injection pipe (M14 x 1.5)2.5kg.m
TorqueFuel injection pump to cylinder block (M10)6.5kg.m
TorqueInjection pump drive gear fixing bolt (M8)2.2kg.m
TorqueIntake manifold (M8)2.2kg.m
TorqueLock nut (adjusting screw) (M12 x 1)5kg.m
TorqueMain bearing cap bolt (M18 x 2)Initial 30 kg.m + rotating angle 90°kg.m
TorqueOil pan plug (M26 x 1.5)8kg.m
TorqueRocker arm bracket (M10)6.5kg.m
TorqueStarting motor (M12 x 1.5)8kg.m
TorqueVibration damper (M10)6kg.m
Valve clearanceExhaust valve clearance0.4mmcold
Valve clearanceIntake valve clearance0.3mmcold

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
CoolantSoft water + antifreeze 40% + rust preventive additive (DCA4) 3~5%20.0 literEngine only: P158LE 20 L, P180LE 21 L, P222LE 23 L. Antifreeze % by ambient: over -10°C 15%, -10°C 20%, -15°C 27%, -20°C 33%, -25°C 40%, -30°C 44%, -40°C 50%
Engine oilSAE 15W40API CD or CE (initial factory fill high quality break-in oil for API Service CH-4)21.0 literOil pan capacity P158LE/PU158TI 21 L; P180LE/PU180TI 35 L; P222LE/PU222TI 40 L (max/min 21/17, 35/28, 40/33)
FuelASTM No.1-D / No.2-D / DIN 51601Cetane number min 45; sulfur max 0.5 wt%Cloud point should be 12°C (10°F) below the lowest expected fuel temperature; water & sediment max 0.05%

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

12
Checking and adjusting injection timing adjustment
  1. Remove plug screw in case cover on injection pump drive gear.
  2. Turn crank pulley so mark on injection pump pointer coincides with matching mark (FB) on drive gear flange.
  3. Check V-type edge of flywheel housing sight hole coincides with injection timing degree on flywheel.
  4. To adjust, loosen fixing bolts (M8) of injection pump driving gear.
  5. Turn crank pulley clockwise until V-groove of sight hole aligns with injection timing degree.
  6. Coincide mark on injection pump pointer with FB mark by turning flange in oblong holes.
  7. Tighten bolt (M8) to 2.2 kg.m and recheck fuel delivery start point.
Valve clearance adjust procedure adjustment

Tools: Feeler gauge (60.99901-0027), Spanner, Screwdriver

  1. Turn crankshaft to bring #1 cylinder piston to compression top dead center.
  2. Loosen lock nuts of rocker arm adjusting screws.
  3. Push feeler gauge of specified value between rocker arm and valve stem.
  4. Adjust clearance with adjusting screw and tighten with lock nut.
Installation of injector installation

⚠ Injection lines are designed for high operating pressures and should be handled with particular care.

⚠ Do not bend pipes to permanent deformation.

  1. Clean seat in cylinder head.
  2. Insert nozzle holder with new seal ring.
  3. Tighten union nut with 120 N.m.
  4. Install injection lines free of constraint.
  5. Install leak fuel lines and screw delivery pipe at nozzle holder and injection pump.
Air removal of fuel system maintenance
  1. Loosen the air removing screws of the cartridge filter.
  2. Operate the manual pump of the fuel supply pump until bubbles disappear.
  3. Suction chamber is continuously bled via relief valve during operation.
Cleaning filter elements (air cleaner) maintenance

⚠ Never use steam sprayers, petrol, alkalis or hot liquids to clean the filter elements.

Tools: Air gun, Goggles

  1. Clean by compressed air using an air gun with a 90° bent nozzle extension.
  2. Blow out element from inside at maximum 500 kPa (5 bar) until no more dust comes out.
  3. Or wash: preclean with compressed air, soak in lukewarm solvent 10 minutes, agitate 5 minutes.
  4. Rinse thoroughly in clean water, shake out and dry at room temperature.
  5. Check cartridge for damage before reinstalling.
Draining of coolant maintenance
  1. Do this when cooling system has cooled down.
  2. Remove cover from filler neck of radiator.
  3. Remove drain plug in the cylinder block.
Filling-in of coolant maintenance

⚠ Do not put cold coolant into an engine which is warm from operation.

⚠ If the cap with working valves is opened it may not close tightly again.

  1. Only when engine has cooled down, fill in the coolant slowly.
  2. Make sure that all air can escape from the cooling system.
  3. Run engine briefly and check coolant level once more.
  4. Add coolant at the filler neck only.
  5. Ensure the ratio of water to antifreeze is correct.
Replacement of fuel filter maintenance

⚠ Mechanical over tightening can distort thread or damage the filter element seal.

  1. Clean the area around the fuel filter head.
  2. Remove the fuel filter and the thread adapter seal ring.
  3. Clean gasket surface of filter head with clean lint free cloth.
  4. Install new thread adapter seal ring supplied with the new filter.
  5. Lubricate filter seal with clean oil and fill new filter with clean fuel.
  6. Install filter on head and tighten until gasket contacts head surface.
  7. Tighten an additional one-half to three-fourths of a turn.
Tensioning and changing V-belts maintenance

Tools: V-belt tension tester

  1. Remove fixing bolts and lock nut.
  2. Adjust bolt until V-belts have correct tension.
  3. Retighten lock nut and fixing bolts.
  4. To change belts, loosen mounting bolts and lock nut and push tension pulley inwards by adjusting bolt.
Operation of a new engine (Break-In) operation
  1. Run engine at fast idling until temperature reaches normal operating condition.
  2. Avoid overload or continuous high speed operation.
  3. Prevent high speed operation with no load.
  4. Avoid abrupt start and stop of the engine.
  5. Keep engine speed under 70% of its maximum speed.
  6. Check oil level, oil pressure warning lamp and water temperature gauge frequently.
  7. At end of break-in (first 50 hours) remove break-in oil and replace oil filter.
Shutting down operation

⚠ Ensure that the engine can not be started by unauthorized persons.

  1. Cut off the main circuit breaker of the generator control panel to stop.
  2. After high load operation, do not shut down immediately; allow to idle about 5 minutes so temperatures equalize.
  3. Remove key from starting lock.
Starting operation
  1. Insert key in starting lock.
  2. Move control lever to idle speed.
  3. Rotate key switch clockwise; do not operate longer than 10 seconds.
  4. After ignition, take hands off key switch and adjust control lever for desired speed.
  5. If engine fails to start, release key, wait about 1 minute, then operate starter again.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the displacement of the Doosan P222LE-1 EAYOB/QB?

The Doosan P222LE-1 EAYOB/QB has a displacement of 21.927 liters with 12 cylinders.

Which generators use the Doosan P222LE-1 EAYOB/QB engine?

The Doosan P222LE-1 EAYOB/QB powers 1 generator set(s), including Doosan P222LE.