W005 WHITE EXHAUST FUMES - Alfa - 159 - eLearn

939010158 - W005 WHITE EXHAUST FUMES

There is a large amount of exhaust fumes, with light coloured smoke

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check: no water or other fluids in the fuel tank engine oil level	Continue to Step 1	Presence of dirt in the fuel tank	Clean the fuel tank
		Continue to Step 1	Level too high	Top up the engine oil level
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner diagnostic equipment to the diagnostic connector and check the engine management control unit: in error mode that there are no faults	Continue to Step 2	An error is detected in the control unit	Continue following the instructions for the diagnostic equipment
2	CHECKING BLOW-BY CIRCUIT	All OK	Problems met	Operation
	Check the condition of the blow-by gases intake circuit. In particular, check that there are no obstructions in the separator or in the pipes	Continue to Step 3	Fault in the pipe from the intake to the separator	Restore the correct operation of the circuit: if necessary, replace the pipes
		Continue to Step 3	Fault in the separator	Restore the correct operation of the circuit: if necessary, replace the separator
3	CHECK ON CYLINDER COMPRESSION	All OK	Problems met	Operation
	Carry out the cylinder compression test	Continue to Step 5	Cylinder head tightening not correct	Continue to Step 4
4	CHECKING CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems met	Operation
	Remove-refit the cylinder head: Check the condition of the cylinders/piston rings the seal of the valve oil seals	Continue to Step 5	Wear on cylinders/piston rings outside tolerance	Restore the correct clearances
		Continue to Step 5	Insufficient valve oil seal	Replace the oil seals, if necessary, overhaul the head
0	PRELIMINARY CHECKS	All OK	Problems met	Operation
	Preliminarily check: if there is service information on the subject no water or other fluids in the fuel tank	Continue to Step 1	Presence of dirt in the fuel tank	Clean the fuel tank
1	ROAD TEST THE VEHICLE	All OK	Problems met	Operation
	With the engine at operating temperature and after a long period of deceleration, check when then accelerating whether the problem is considerably worse	Continue to Step 2	Increase in acceleration fumes (after deceleration) caused by oil from the piston rings or valve guides	Continue to Step 3
2	CHECKING BLOW-BY CIRCUIT	All OK	Problems met	Operation
	Check the condition of the blow-by gases intake circuit. In particular, check that there are no obstructions in the separator or in the pipes	Continue to Step 3	Fault in the pipe from the intake to the separator	Restore the correct operation of the circuit: if necessary, replace the pipes
		Continue to Step 3	Fault in the separator	Restore the correct operation of the circuit: if necessary, replace the separator
3	CHECKING CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems met	Operation
	Remove-refit the cylinder head: Check the condition of the cylinders/piston rings the seal of the valve oil seals	Continue to Step 4	Wear on cylinders/piston rings outside tolerance	Restore the correct clearances
		Continue to Step 4	Valve oil seals leaking	Replace the oil seals, if necessary, overhaul the head
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis