1084B18 ENGINE OIL PUMP, REMOVED - CHECK AT BENCH - Fiat - STILO - eLearn

3363566 - 1084B18 ENGINE OIL PUMP, REMOVED - CHECK AT BENCH

) Position the engine oil pump in the vice fitted with protective jaws.1. Fit the tool.

	Description	Code
1	Counter-torque/Template	1.870.799.000

2. Undo the left hand bolt (2a) and remove the oil pump drive chain assembly (2b).Remove the tool.

	Description	Code
-	Counter-torque/Template	1.870.799.000

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

Refitting ( Removing

) Check the wear of the oil pump drive chain assembly and, if necessary, replace it.Check that the radial clearance between the gears and the pump casing is within the recommended limits; if this is not the case, replace the engine oil pump.

	Measurement		Value
-	Radial clearance between gear and pump casing (mm)		0.110 - 0.180

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

	Measurement		Value
-	Endfloat between top of gears and pump casing support plane (mm)		0.016 - 0.086

Check that the height of the 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 released (mm)		49,5
	Test load (daN)	11.73 - 12.51

	Measurement		Value
-	Height of engine oil pressure relief valve spring (mm)		35
	Test load (daN)	11.96 - 12.76

	Measurement		Value
-	Diameter of wire or bar (mm)		1,8 ± 0,15

	Measurement		Value
-	Outer diameter (mm)		11,5 ± 0,10

	Measurement		Value
-	Total number of coils (-)		16

Fit the oil pressure relief valve and tighten the cap to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
-	Plug	OIL PRESSURE LIMITING VALVE	-	1,6 - 2,0

Fit the drive gear.Fit the driven gear.Fit the oil pump cover and tighten the bolts.

	Fastening	Component	Ø	Value(daNm)
-	Bolt	OIL PUMP GEARS COVER	-	0,8 - 1,2

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

Position the engine oil pump in the vice fitted with protective jaws.1. Fit the tool.

	Description	Code
1	Counter-torque/Template	1.870.799.000

2. Fit the oil pump drive chain assembly (2a) so that the references (2b) are aligned and tighten the (left hand) bolt (2c) to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
2c	Anticlockwise bolt	OIL PUMP DRIVE CHAIN ASSEMBLY	M10	4.5 - 5.5