Perkins 1106C-E66TAG2 Engine

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Shared across brands: Caterpillar, FG Wilson, Olympian, Perkins

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• White smoke
  Fix: Oil level too high.; Motor cold or in prolonged operation with little or no load.; Segments and/or cylinders worn out.
• Unstable tension
  Fix: Contacts malfunctioning; Irregular rotation of motor; Alternator defective
• Too little power provided by motor.
  Fix: Air filter clogged.; Insufficient fuel distribution, impurities or water in feed circuit.; Injectors dirty or defective.
• The motor does not start up
  Cause: 1) Start-up switch (I6) (where it is assembled) in incorrect position 2) Emergency button (L5) pressed 3) Preheating (where it is assembled) 4) Engine control unit or starting key faulty. 5) Battery low 6) Battery cable terminals loose or corroded 7) Start-up motor defective 8) No fuel or air in feed circuit 9) Malfunction on feed circuit: defective pump, injector blocked, etc. 10) Air filter or fuel filter clogged 11) Air in the gasoil filter. 12) Motor stopping device defective 13) Malfunction on electrical power circuit on generator control panel
  Fix: 1) Check position 2) Unblock 3) Lacking or insufficient preheating phase for sparkplugs. Malfunction in circuit: repair. 4) Replace 5) Recharge or replace. Check the battery charge circuit on motor and automatic panel. 6) Tighten and clean. Replace if corroded. 7) Repair or replace. 8) Refill tank, un-aerate the circuit. 9) Ask for intervention of Service Department. 10) Clean or replace 11) Take the air out filling the filter with gasoil. 12) Replace. 13) Check and repair.
• The motor does not accelerate. Inconstant speed.
  Cause: 1) Air filter or fuel filter clogged. 2) Malfunction on feed circuit: defective pump, injector blocked, etc.
  Fix: 1) Clean or replace 2) Ask for intervention of Service Department.
• Oil level too high.
  Fix: Eliminate excess oil.
• No-load voltage too low or too high
  Fix: Incorrect motor running speed; Voltage regulating device (where it is assembled) defective or requires calibration; Alternator defective
• Motor speed regulator defective.
  Fix: Ask for intervention of Service Department.
• Low oil pressure
  Fix: Oil level insufficient; Air filter clogged.; Oil pump defective.; Alarm malfunction.
• High temperature
  Fix: Overload; Insufficient ventilation.; Insufficient coolant liquid (Only for water cooled motors); Water radiator or oil clogged (where it is assembled); Water circulating pump defective (Only for water cooled motors); Injectors defective. Injection pump requires calibration; Alarm malfunction
• Corrected no-load voltage too low with load
  Fix: Incorrect motor running speed due to overload; Load with cos j less than 0.8; Alternator defective
• Black smoke
  Fix: Air filter clogged.; Overload.; Injectors defective. Injection pump requires calibration.
• Absence of output voltage
  Fix: Voltage switch in position 0; Voltage switch faulty; Protection tripped due to overload; Differential protection device tripped. (Differential switch, differential relay); Protection devices defective; Alternator not sparked; Alternator defective

Compiled from service & troubleshooting documentation across every generator set that uses the Perkins 1106C-E66TAG2.

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

• Oil filter: Perkins 2654A111 Donaldson P550920 Wix 57325

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

• Fg Wilson P200-2 — Generator Set

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.