Manuale Officina LGW 523-627 - lombardini service

2TECHNICAL INFORMATIONTROUBLE SHOOTINGTHE ENGINE MUST BE STOPPED IMMEDIATELY WHEN:1) - The engine rpms suddenly increase and decrease;2) - A sudden and unusual noise is heard;3) - The colour of the exhaust fumes suddenly darkens;4) - The oil pressure indicator light turns on while running.TABLE OF LIKELY ANOMALIES AND THEIR SYMPTOMSThe following table contains the possible causes of some failures which may occur during operation.Always perform these simple checks before removing or replacing any part.TROUBLEPOSSIBLE CAUSEEngine does not startEngine starts but stopsNo accelerationNon-uniform speedBlack smokeWhite smokeOil preassure too lowOil level increaseExcessive oilconsumptionOil and fuel drippingfrom the exhaustEngine overheatsInadequateperformanceHigh noise levelClogged fuel pipesClogged fuel filterAir or water in the fuel circuitFUELCIRCUITTank cap breather blockedFaulty fuel pumpLack of fuelGlow plug fuse burnedFaulty glow plug control relayELECTRICSYSTEMMAINTENANCESETTINGS REPAIRSFlat batteryUnclear or mistaken cable connectionFaulty starter switchFaulty starting motorFaulty glow plugsClogged air filterProlonged operation at idleIncomplete run-inOverloaded engineExcessive valve clearancesAbsence of valve clearancesIncorrect speed governor leveragesSpeed governor spring broken or disengagedIdle lowWorn out or stuck ringsWorn out cylindersWorn out valve guidesBad valve sealBearing shells of bearing cap - piston rod -rocker worn outE.G.R. valve blocked openGovernor leverages not runningCylinder head gasket damagedFaulty timing systemSupplementary starter spring broken ordisengaged- 12 - FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06