194002100 - W005 WHITE EXHAUST FUMES

A high level of pale-coloured exhaust fumes is noted
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
First of all, check for water or other fluids in the fuel tankMove on to Step 1Presence of dirt in the fuel tankClean the fuel tank
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check that there are no faults in the engine management control unitMove on to Step 2Error detected in the control unitContinue following the instructions for the diagnostic equipment
No communication with the control unitRestore the connection between the engine management control unit and the diagnostic connector See    See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT
2ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Connect the diagnostic equipment (Examiner or other instruments) and carry out the active diagnosis of the injectorsMove on to Step 3Injector connection faultyRestore the connection for the injectors with the control unit See    See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT
Injector faultReplace the injector Op.    Op. 1056B70 INJECTOR (ONE) - R + R WITH FUEL MANIFOLD PIPE REMOVED - INCLUDES SEAL REPLACEMNT
3CYLINDER HEAD GASKET CHECKAll OKProblems encounteredOperation

Check:

  • That the cylinder head is correctly tightened;
  • The seal of the gasket
Move on to Step 4Cylinder head tightening incorrectRestore correct tightening
Gasket damagedReplace the gasket Op.    Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET
4BLOW-BY CIRCUIT CHECKAll OKProblems encounteredOperation
Check the condition of the blow-by gas intake circuit. In particular, check for obstructions in the separator or pipesMove on to Step 5Fault in the blow-by circuitRestore circuit to working order: replace the pipes if necessary
5CHECK CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom
A high level of pale-coloured exhaust fumes is noted
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation

First, check:

  • if there is sevice information on the subject
  • that there is no water or other liquids in the fuel tank
Move on to Step 1Presence of dirt in the fuel tankClean the fuel tank
1CARRY OUT ROAD TESTAll OKProblems encounteredOperation
With the engine at operating temperature check after a long deceleration that there is not a considerable deterioration in the problem after subsequent accelerationMove on to Step 2Increase in the fumes during acceleration (after deceleration) as a result of oil passing through the piston rings or valve guidesMove on to Step 3
2BLOW-BY CIRCUIT CHECKAll OKProblems encounteredOperation
Check the condition of the blow-by gas intake circuit, in particular check that there are no obstructions in the separator or in the pipesMove on to Step 3Fault in the pipe from separator to intakeRestore circuit to working order: change the pipe if necessary
Fault in the separatorRestore circuit to working order: replace the separator if necessary
3CHECK THE CAUSE OF THE INSUFFICIENT COMPRESSIONAll OKProblems encounteredOperation

R.R. cylinder head:

  • Check condition of cylinders/piston rings
  • the seal of the valve oil seals
Move on to Step 4Cylinder/ring wear outside tolerancesRestore correct operating clearances
Valve oil seals insufficientReplace the oil seals, if necessary, overhaul the head
4CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the fault is no longer presentEnd of diagnosis