ENGINE OIL PUMP, REMOVED - CHECK AT BENCH

Operation 1084B18 · ENGINE OIL LUBRICATION CIRCUIT

3.2 JTS

Removing

1. Undo the bolts (1a) and separate the cover (1b) from the engine oil pump casing (1c).

2. Remove the drive gear.

3. Remove the driven gear.

4. Remove the circlip, remove the plug (so that it is "destroyed") and extract the engine oil pressure relief valve components.

Refitting

- Check that the gears show no signs of wear or seizing; if this is not the case, replace the oil pump assembly.

- 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.

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

- Place the engine oil pressure relief valve components in their housing, fit a new plug using a suitable tool and fit the circlip.

- Place the driven gear in position.

- Place the drive gear in position.

- Fit the cover on the oil pump and tighten the bolts.

2.2 JTS

Removing

1. Undo the cap (1a) and remove the engine oil pressure relief valve (1b).

2. Undo the bolts (2a) and remove the pump cover (2b).

3. Remove the drive gear.

4. Remove the driven gear.

Refitting

- 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.

- Place the engine oil pump cover back in its housing and secure it using the bolts.

Manually rotate the gear to check that it does not stick.

- Place the oil pressure relief valve in position and tighten the cap.

2.4 JTD 20v

Removing

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

1. Fit the tool.

2. Undo the (left hand0 bolt (2a) and remove the oil pump drive chain assembly (2b).

Remove the tool.

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

Check the oil pump drive chain assembly for wear 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.

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.

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

Fit the oil pressure relief valve and tighten the nut.

Fit the drive gear.

Fit the driven gear.

Fit the oil pump cover and tighten the fixing bolts to the recommended torque.

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.

2. Fit the oil pump drive chain assembly (2a) and tighten the (left hand) bolt (2c) to the recommended torque.