Six-cylinder engine
Remove the oil pump.
Remove cover "1" of the oil intake. Pull out the mesh "2" and wash it in fuel.
Turn the drive shaft and check the ease of movement of the gears.
Check the body and cover for cracks and the gears for wear.
Remove the overload protection valve by squeezing it with special pliers and pulling out the retaining ring "4".
Note: Washer "5" is pressed by the valve spring, so it should be held with the appropriate rod or key head. Pull out the spring and piston "6".
Check the ease of movement of the piston in the housing.
Measure the length of the compression spring. The specified value of the spring length in a free state: 44±0.2 mm.
Insert the piston; press the spring and the washer with the appropriate key head and hold with screwdriver "3".
Insert the retaining ring.
Tighten the oil pump cover with a tightening torque of 9 Nm.
Install the oil pump.