Intermediate shaft engines
Removal
1. Remove the pan (refer to Section Removal and installation the pallet).
2. Loosen the four pump mounting bolts and separate the pump from the cylinder block and drive gear (refer to the accompanying illustration).
3a. If necessary, loosen the two mounting bolts and remove the oil pump drive gear cover and sealing ring from the rear of the cylinder block.
3b. Remove the drive gear from the block (refer to the illustrations). Discard the sealing ring.
Inspection
1. Loosen the mounting bolts and remove the pump cover.
2. Remove the idler gear/shaft. Mark the idler gear so that it can be installed in the same position (refer to the accompanying illustration).
3. Remove the retaining clip and remove the support cup, spring, spring seat and plunger of the pressure reducing oil valve.
4. Clean the components and carefully inspect the gears, pump body and plunger for scoring and signs of wear. Replace the pump assembly if excessive wear is present.
5a. If the components are serviceable, use feeler gauges to measure the clearance between the pump body and the gears.
5b. Also measure the axial clearance of the gears and check the flatness of the end cover (refer to the illustrations). If the gaps exceed those specified in Specifications permissible deviations, the pump must be replaced.
6. If the pump is OK, reassemble all components in the reverse order of removal. Fill the pump with oil, then install the cover and tighten the bolts securely. Bleed the pump by submerging it in a container of oil and rotating the drive shaft.
Installation
1. Where necessary, install the pump drive gear into the cylinder block, correctly engaging it with the intermediate shaft. Install the drive gear cover using a new O-ring and tighten the mounting bolts securely.
2. Wipe the mating surfaces of the oil pump and cylinder block.
3. Check that the dowel pin is in the oil pump, then place the pump in the operating position. Engage the pump drive shaft with the drive gear slots. Install the pump mounting bolts and tighten them to the specified torque Specifications effort.
4. Install the tray as described in Section Removal and installation the pallet.
Engines without intermediate shaft
Removal
1. To remove only the oil pump, first remove the oil pan, refer to Section Removal and installation the pallet.
2. Loosen the two mounting bolts and remove the oil pump, tilting it to disengage the sprocket from the drive chain.
3. To remove the oil pump together with the drive chain and sprocket, first remove the oil pan (Section Removal and installation the pallet), then unscrew the crankshaft oil seal housing from the drive belt side as described in Section Replacing crankshaft seals. Note the chain guide and two mounting pins.
4. Remove the bolts securing the sprocket to the oil pump hub. Hold it in place with a screwdriver inserted through one of the holes.
5. Remove the drive sprocket from the crankshaft and the driven sprocket from the oil pump together with the chain. Note that the drive sprocket does not have a key and is secured to the crankshaft only by a bolt. Therefore, it is very important to tighten the pulley bolt correctly, otherwise there is a possibility that the oil pump will not function.
6. Unscrew the oil pump as described above.
Inspection
1. Proceed as described in Inspection for INTERMEDIATE SHAFT ENGINES.
Installation
2. Wipe the contact surfaces of the oil pump and cylinder block.
[Text published on the website: RENAULTBOOK]
3. Make sure the two dowel pins are in place in the cylinder block, then place the oil pump on them and insert the two mounting bolts. Tighten the bolts securely.
4. Place the chain on the sprockets (if deleted), then install both sprockets with the chain on the crankshaft and on the oil pump hub.
5. Align the holes, then insert the bolts and tighten them while holding the sprocket still with a screwdriver.
6. Install the oil seal housing as described in Section Replacing crankshaft seals (don't forget the chain guide and two locating pins) and a pallet (see section Removal and installation the pallet).