22 · Diagnostics

Excessive oil consumption

Make: Lancia
Model: Ypsilon Factory Service Manual
Year: 2003–2011
Section: Consumption /leaks/ wear › Excessive oil consumption

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Fault diagnosisExcessive oil consumption

EXCESSIVE OIL CONSUMPTION

1.4 16v

The engine is running smoothly, but the oil consumption is higher than previously recorded during the life of the vehicle;

High consumption during the first few thousand kilometres is considered normal

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check that the level of the engine oil is not high Check that there are no fluid leaks Check that there is no engine oil in the coolant. Check that the end of the exhaust pipe is not dirty with oil No blueish exhaust fumes	Continue to Step 1	Fluid level not correct	Restore the correct level
			Engine oil leaks	Eliminate leak
			Oil in the cooling circuit	Continue to Step 1
			Exhaust tail pipe dirty with oil	Continue to Step 2
			Blueish exhaust fumes	Continue to Step 2
1	CHECKING CYLINDER HEAD	All OK	Problems met	Operation
	Remove the cylinder head; That that the following are absent: Wear of the valve stem with excessive clearance between the valve stems and valve guides and between the valve stems and oil seals Oily dross on the valves; Defects in the cylinder block/crankcase plane; Defects in the cylinder head gasket	Continue to Step 2	Excessive clearance between the valve stem and valve guide and between the valve stem and oil seal	Replace the damaged/worn components
			Presence of oily dross on the valves	Overhaul the cylinder head Op. 1016E10
			Cylinder block/crankcase plane defective	Reface the cylinder block/crankcase
			Cylinder head gasket faulty	Check that the planarity between the head/crankcase matching planes is correct and replace the head gasket
2	ENGINE OIL PENETRATION CHECK	All OK	Problems met	Operation
	Check the piston seals, in particular: that they are not broken or damaged that the actual rings are correctly fitted that there is no seizing or sticking in the grooves	Continue to Step 3	Piston seals damaged or seized	Replace pistons, pins and seals
		Continue to Step 3	Piston seals not correctly fitted	Fit the seals correctly
3	CYLINDER LINER/BORE CHECK	All OK	Problems met	Operation
	Check the cylinder liners/bores. In particular: That there are no grooves and/or vitrification Dimensions of the liners/bores, in particular that there is no ovality/taper/wear Correct piston - liner/bore fitting clearance	Continue to Step 4	Liners/bores with grooves and/or vitrified	Grind the cylinder liners/bores
			Dimensions outside the tolerance: presence of ovality/taper/wear	Grind the cylinder liners/bores
			Fitting clearance incorrect	Replace the pistons, pins and seals, following the fitting clearances
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'

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