1084B18 ENGINE OIL PUMP, REMOVED - CHECK AT THE BENCH - Lancia - THESIS - eLearn

505994 - 1084B18 Engine oil pump, removed - Check at the bench

) 1. Remove the intake net.2. Remove the circlip.3. Remove the engine oil pressure relief valve.4. Undo the bolts (4a) and separate the pump cover (4b) from the pump casing (4c).5. Remove the seal.6. Remove the drive gear.7. Remove the driven gear.

Refitting ( Removing

) - Check that the gears show no signs of wear or seizing; if this is not the case, replace the oil pump assembly.- Check that the radial clearance between the driven gear and the pump casing is within the recommended limits; if this is not the case, replace the oil pump assembly.

	Subject	Value
.	Oil pump	-
-	Radial clearance between gears and pump casing	0.025 - 0.075

- Check that the height of the engine oil pressure relief valve spring is within the recommended values; if not, replace the spring.

	Subject	Value
.	Oil pump
-	Height of engine oil pressure relief valve spring with test load	15.9 - 16.9 daN
-	-		33.3 mm

	Subject	Value
.	Oil pump
-	Height of engine oil pressure relief valve spring with test load	13.8 - 14.8 daN
-	-		36 mm

- Fit the driven gear.- Fit the drive gear.- Fit the seal.- Fit the pump cover on the pump casing and secure it using the bolts.

	Value - daNm	Fastening	Component	Ø
.	0,9 - 1,1	Bolts	OIL PUMP CASE	-

- Fit the engine oil pressure relief valve.

	Value - daNm	Fastening	Component	Ø
.	3,4 - 3,6	-	PRESSURE RELIEF VALVE ENGINE OIL PUMP	-

- Fit the circlip.- Fit the intake net.