X05 EXCESSIVE OIL CONSUMPTION - Alfa - GT - eLearn

125000721 - X05 EXCESSIVE OIL CONSUMPTION

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
	Preliminarily check: Whether there is service information on the subject Possible leaks	Continue to Step 1	Obvious oil leaks	Continue as instructedSee table See table X12 ENGINE OIL LEAKS
1	CYLINDER HEAD OIL PENETRATION CHECK	All OK	Problems met	Operation
1.9 JTD 16V2.0 JTS	Remove the cylinder head [PR_1016C10] and check: That there are no carbon deposits in the combustion chambers and on the inlet valves That the valve stems are not worn	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 Op. Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
3.2 V6	Remove the cylinder head [PR_1016D11] and check: That there are no carbon deposits in the combustion chambers and on the inlet valves That the valve stems are not worn	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 Op. Op. 1016E26 CYLINDER HEADS - OVERHAUL
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 Op. Op. 1028H60 PISTON, PIN SET - REPLACE
		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 condition of the surfaces and dimensions (ovality/taper) of the cylinder liners/bores; Piston - liner/bore fitting clearance;	Continue to Step 4	Liner/bore surfaces non-compliant	Grind the cylinder liners/bores
			Dimensions outside of the tolerance	Grind the cylinder liners/bores
			Fitting clearance incorrect	Replace the pistons, pins and seals, respecting the fitting clearances Op. Op. 1028H60 PISTON, PIN SET - REPLACE
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	.