X05 EXCESSIVE OIL CONSUMPTION - Alfa - 147 - eLearn

3022761 - X05 EXCESSIVE OIL CONSUMPTION

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 Op. 1048A10 Check that there is no engine oil in the coolantCheck that the end of the exhaust pipe is not dirty with oilCheck whether there is blueish smoke in the exhaust Carry out a consumption test	Continue to Step 1	Engine oil leaks	See table X12 ENGINE OIL LEAKS
			Oil level outside the limits	Restore the correct level Op. 1084A10
			Oil in the cooling circuit	Continue to Step 2
			Exhaust tail pipe dirty with oil	Continue to Step 2
			Exhaust fumes	Continue to Step 2
			Excessive consumption	Continue to Step 2
1	SPARK PLUG CHECK	All OK	Problems met	Operation
	Check that there is no oil fouling the spark plugs	Continue to Step 2	Spark plugs fouled by oil	Continue to Step 2
2	CYLINDER BLOCK/CRANKCASE PLANE CHECK	All OK	Problems met	Operation
	Remove the cylinder head Op. 1016C10 That that the following are absent: oily dross on the valves; defects in the cylinder block/crankcase plane; defects in the cylinder head gasket;	Continue to Step 3	Cylinder block/crankcase plane defective	Reface the cylinder block/crankcase
		Continue to Step 3	Presence of oily dross on the valves	Overhaul the cylinder head Op. 1016E10
3	CYLINDER LINER/BORE CHECK	All OK	Problems met	Operation
	Check the cylinder liners/bores. In particular: no deep machining scoring; no vitrification of the liners/bores; make sure that there is no ovality or wear	Continue to Step 4	Deep scoring or excessive ovality	Replace the engine Op. 1004B10
			Cylinder liners/bore vitrified	Regrind the cylinder
			Machining grooves	Regrind the cylinder
			Seals faulty	Replace the circlips Op. 1028H60
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'