Engine oil pump, removed - check at bench

Operation 1084B18 · Engine oil lubrication circuit

1.6 TS

Removing

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

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

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

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.

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

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.

2.0 TS

Removing

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.

Prise up and remove the crankshaft front oil seal.

Take care not to damage the oil seal seat during removal.

Refitting

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

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

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.

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

Refit the driven gear.

Refit the drive gear.

Place the complete engine oil pump cover back in its housing and secure using the bolts, ensuring it is centred.

Turn the gears by hand to check they do not bind.

Fit the oil pressure relief valve and tighten the cap.

3.2 V6

Removing

1. Remove the intake wire gauze.

2. Remove the circlip.

3. Remove the engine oil pressure relief valve.

4. Undo the bolts (4a) and separate the pump cover (4b) from the pump casing (4c).

5. Remove the gasket.

6. Remove the drive gear.

7. Remove the driven gear.

Refitting

Check that the gears do not show signs of wear or binding. If not, replace the oil pump assembly

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

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.

Refit the driven gear.

Refit the drive gear.

Place the gasket back in its housing.

Place the pump cover back in its housing and secure it tightening the bolts to the recommended torque.

Place the engine oil pressure relief valve back in its housing.

Refit the retaining ring.

Place the intake wire gauze back in its housing.

1.9 JTD 8V

Dismantling

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

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

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

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.

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.

1.9 JTD 16V

Dismantling

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).

5. Remove the crankshaft front oil seal.

Reassembling

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

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

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.

Fit the oil pressure relief valve in its seat and tighten the cap.

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.