3239082 - 1084b18 engine oil pump, removed - check at bench

Dismantling ( Reassembling ) 1. Undo the bolts (1a) and remove the oil pump cover (1b).2. Remove the drive gear.3. Remove the driven gear.4. Undo plug (4a) and remove oil pressure relief valve (4b).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)		0.080 - 0.186

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

	Measurement		Value
-	End float. between pump cover support plane (mm)		0.025 - 0.070

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
-	Check load (daN)		11.73 - 12.51
	Height (mm)	35

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

	Name	Country
1b	Fitting tool	1.821.247.000

Fit the oil pressure relief valve and tighten the plug.Fit the driven gear.Fit the drive gear.Fit the oil pump cover and tighten the bolts.

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