3026002 - 1084B18 engine oil pump, removed - check at bench

Removing ( Refitting ) 1. Undo the cap (1a) and remove the 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 pump casing and driven gear is within the recommended limits; If not, replace the oil pump assembly

MeasurementValue
-Radial clearance between driven gear and engine oil ump casing (mm)0.080 ÷ 0.186
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

MeasurementValue
-End float between upper side of gears and engine oil pump cover support surface (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.

MeasurementValue
-Engine oil pressure limiting valve spring height (mm)36.0
Check load (daN)6.4 ÷ 7.2
1. Fit a new crankshaft front oil seal (1a) using the tool (1b).

NameCountry
1bFitting tool1.821.247.000
Fit the driven gear.Fit the drive gear.Fit the oil pump cover and tighten the bolts.
Manually rotate the gears so that they do not stick.
Fit the oil pressure relief valve and tighten the cap.