Draining oil from the engine (see Change of oil).
Removing the engine crankcase (see Replacing the oil pan).
key «at 13» Remove the two oil pump mounting bolts...
...and remove it from the engine. A gasket is installed between the pump and the cylinder block.
key «on 10» unscrew the three mounting bolts and remove the nozzle from the pump.
We remove the pressure reducing valve with a spring from the nozzle...
...and a thrust washer.
Remove the cover from the pump.
We take out the leading...
...and the driven gear.
In case of severe wear of the housing, cover and gears, we replace the pump.
We assemble and install the pump in the reverse order, lubricating its parts with engine oil.