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

2429761 - 1084B18 engine oil pump, removed - check at bench

) 1. Undo the cap (1a) and remove the oil pressure relief valve (1b).2. Undo the bolts (2a) and remove the engine oil inlet duct (2b) complete with gasket (2c).

1. Undo the bolts (1a) and remove the oil pump cover (1b).2. Remove the drive gear.3. Remove the driven gear.

1. Remove the crankshaft front oil seal.

Reassembling ( Dismantling

) Check that the radial clearance between pump casing and driven gear is within the recommended limits; If not, replace the oil pump assembly

	Measurement		Value
-	Radial clearance between pump casing and driven gear (mm)		0.1 ÷ 0.23

Check that the clearance between the oil pump cover support plane and the upper side of the gears is within the recommended limits; If not, replace the oil pump assembly

	Measurement		Value
-	Clearance between pump cover support surface and top of gears (mm)		0.05 ÷ 0.075

Check that the height of the spring for the engine oil pressure relief valve is within the recommended limits; if this is not the case, replace the spring.

	Measurement		Value
-	Engine oil pressure limiting valve spring height (mm)		36.0
	Check load (daN)	5.44 ÷ 6.2

1. Refit the front crankshaft front cover oil seal (1a) using the tool (1b).

	Name	Country
1b	Fitting tool	1.860.878.000

Refit the driven gear.Refit the drive gear.Place the engine oil pump cover back in its housing and secure using the bolts.

Manually rotate the gears to check that they turn without sticking.

Place the intake duct complete with gasket in its housing and fix it using the bolts.Fit the oil pressure relief valve in its seat and tighten the cap.