1084B18 ENGINE OIL PUMP, REMOVED - CHECK AT BENCH - Alfa - GT - eLearn

125001156 - 1084B18 ENGINE OIL PUMP, REMOVED - CHECK AT BENCH

) 1. Undo the cap (1a) and remove the engine oil pressure relief valve (1b).2. Undo the bolts (2a) and remove the oil pump cover (2b).3. Remove the drive gear.4. Remove the driven gear.Remove the crankshaft front oil seal.

Refitting ( Removing

) 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.

	Measurement		Value
-	Radial clearance between driven gear and engine oil pump casing (mm)		0.080 ÷ 0.186

Check that the clearance between the pump cover support plane and the top of the gears is within the reocmmended values; if this is not the case, replace the oil pump assembly.

	Measurement		Value
-	Endfloat between top of gears and engine oil pump casing support plane (mm)		0.025 ÷ 0.070

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

	Measurement		Value
-	Height of engine oil pressure relief valve spring (mm)		36.0
	Test load (daN)	6.4 ÷ 7.2

1. Fit a new crankshaft front oil seal (1a) using the tool (1b).

	Description	Code
1b	Fitting tool	1.821.247.000

Fit the driven gear.Fit the drive gear.Fit the oil pump cover and secure it by tightening the bolts.

Manually rotate the gears to check that they do not stick.

Fit the oil pressure relief valve and tighten the cap.