The oil pump housing is a single casting with the front cover of the cylinder block
If the pump needs to be replaced, replace the cover assembly.
To complete the work, you will need tools: keys for 10, 12, 14, 17, 32; socket heads for 12, 16, a set of screwdrivers, a wrench for unscrewing the oil filter, pliers, a container for draining the oil, oil-resistant sealant.
We prepare the car for the job. We install the car on a viewing ditch.
We drain the oil from the engine (article - Changing the oil and oil filter GAZelle Next).
We drain the coolant from the cooling system.
Removing the radiator
Remove the charge air cooler (intercooler)
We unscrew the support from the axis and remove the viscous coupling with a fan.
Disconnect the wiring block from the crankshaft position sensor connector.
Remove the accessory drive belt (article - Replacing the Cummins ISF2.8 accessory drive belt).
We unscrew and remove the oil sump (article - Replacing the crankcase seals Cummins ISF2.8 GAZelle Next).
We unscrew the bolt-fitting securing the tip of the oil supply hose to the turbocharger bearing.
Disconnect the hose from the front cover body
We loosen the tightening of the pipe clamp from the cooler to the inlet pipe, disconnect the pipeline and take it to the side
Squeeze the bent ears of the heater hose clamp, move the clamp and disconnect the hose from the front cover fitting
We squeeze the ears of the hose clamp from the expansion tank, move it and disconnect the hose from the fitting
Disconnect the wiring block from the emergency oil pressure drop sensor connector
Unscrew the three bolts securing the crankshaft pulley
Remove the washer and pulley
We unscrew ten fastening bolts
Remove the front cover assembly by pulling it forward
When removing the front cover, you need to move it strictly along the engine axis, otherwise the front crankshaft oil seal may be damaged.
Branch pipe 7, Figure 1, connections with the jacket of the cooling system of the cylinder block is sealed with a rubber ring and inserted into the hole of the block with an interference fit, therefore, to remove it, force must be applied.
Remove the front cover gasket.
Install the front cover in reverse order.
Before installing a new gasket, apply a thin coat of oil resistant sealant to both sides of the lower ends of the gasket.
We install a new O-ring on the connection pipe with the jacket of the cooling system of the cylinder block and thoroughly clean the walls of the hole in the block
Before installing the cover, lubricate the rubber O-ring on the cover body and the walls of the hole in the block with coolant.
Pour clean engine oil through channel 9, Figure 1, before installing the cover on the cover block.
We turn the pump gears by the hexagon of the internal gear so that the oil flows into the internal cavities of the pump.
To facilitate the installation of the oil seal on the crankshaft, lubricate the working surface of the front end of the shaft with engine oil.
Install the front cover and other parts in reverse order.
We tighten the bolts securing the front camshaft gear cover to the cylinder block in the order shown in the figure. Tightening torque 24 Nm.
Fill the engine lubrication system with oil.