The pressure in the lubrication system is generated by a gear oil pump installed in the engine oil sump at the front of the cylinder block and driven by a chain drive from the crankshaft

Ремонт масляного насоса и его привода Рено Дастер

The pump sucks oil from the engine oil sump through an oil receiver with a strainer and then through a full-flow oil filter with a porous paper filter element supplies it to the main oil line located in the cylinder block on the left side.

The oil supply channels to the main bearings of the crankshaft depart from the main line.

Oil is supplied to the connecting rod bearings through channels made in the crankshaft body.

From the main oil line, there is an oil supply channel to the camshafts.

To lubricate the camshaft bearings, oil from the vertical channel through the radial hole in the journal of the third bearing flows through a hollow bolt into the axial hole of the rocker arm axis, along which it is distributed between the rest of the camshaft bearings and the rocker arms of the valve drive.

The camshaft cams are lubricated with oil sprayed through the holes in the rocker arms.

Excess oil from the block head is drained into the oil sump through vertical drain channels.

Removal and installation of the oil pump

You will need tools: socket heads for 10, 13, 16, 18, Torx E8, E14, a square wrench, a set of screwdrivers, a clamp for installing a TDC, a camshaft lock, engine oil, an oil drain container.

Drain the oil from the oil pan (article - Replacing the oil and filter of the Renault Duster engine)

Remove the oil pan (article - Renault Duster engine oil pan gasket replacement)

Ремонт масляного насоса и его привода Рено Дастер

Unscrew the two bolts securing the oil pump

Ремонт масляного насоса и его привода Рено Дастер

Bolts are of different length

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

We lower the pump down a little

Remove the chain from the pump sprocket.

Install the parts in reverse order.

We tighten the bolts of the oil pump to a torque of 25 Nm.

Replacing the chain and gear wheel of the oil pump drive

We install the car on a lift or a viewing ditch

Drain the oil from the engine oil sump (article - Replacing the oil and filter of the Renault Duster engine)

Remove the accessory drive belt (article - Renault Duster accessory belt check and replacement)

We remove the timing belt (article - Checking and replacing the timing belt of the Renault Duster car)

Remove the oil pan (Renault Duster engine oil pan gasket replacement)

Remove the oil pump as described above

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

Remove the crankshaft gear

Unscrew the bolts securing the front crankshaft cover

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

Pry off the front crankshaft cover with a screwdriver

Remove the cover

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

Remove the pump drive chain

We remove the gear wheel of the drive of the oil pump

Install the parts in reverse order.

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

Before installing the front crankshaft cover, we clean the mating surfaces of the cylinder block

We clean the cover from the remnants of the sealant

We apply sealant to the mating surface of the front crankshaft cover and install the cover.

Defect detection and repair of the oil pump

You will need tools: socket heads for 10, 13, Torx E8, a square wrench, engine oil, a container for draining the oil, a special sealant, a wrench for 8, pliers, a metal ruler, a set of flat probes.

Ремонт масляного насоса и его привода Рено Дастер

We remove the oil pump, as described at the beginning of the article

Drain the oil from the pump

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

Unscrew the five bolts securing the oil pump cover

Remove the oil pump cover.

We remove the spring retainer of the pressure reducing valve

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

The pressure relief valve spring is fitted with an interference fit. Remove the retainer carefully, holding the spring stop.

Removing the spring stop

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

We take out the spring

We take out the plunger of the pressure reducing valve

We measure the radial clearance between the gears and the pump housing

Ремонт масляного насоса и его привода Рено ДастерРемонт масляного насоса и его привода Рено Дастер

The gap should be 0.110-0.249 mm.

We measure the axial clearance of the gears. It should be equal to 0.020-0.086 mm.

If the clearances measured are not within acceptable values, replace the casing or pump assembly.

We wash the pump body and parts.

We remove deposits from the internal cavities of the pump.

Ремонт масляного насоса и его привода Рено Дастер

We inspect the pump housing and cover.

In the presence of cracks, scratches, casting defects, damage to the threaded holes, we replace the casing or the pump assembly.

We check the pressure relief valve spring for residual deformation and bending.

We replace the damaged spring.

Ремонт масляного насоса и его привода Рено Дастер

We check the gears for metal chipping, scoring and tooth wear.

We assemble the pump in reverse order.