2. Unscrew the plug and remove the parts of the pressure reducing valve.
3. Clean the parts.
4. Insert the gears so that the marks on them face the pump and check all the gaps indicated in the Technical Data (photo).
5. If the clearances are out of specification, replace the pump.
6. Check the condition of the pressure reducing valve, replace if necessary.
15.1 Oil pump parts
1. Shaft; 2.4 - Gasket; 3. Housing; 5. Gears (leading and led); 6. Lid; 7. Plug; 8. Washer; 9. Spring; 10. Valve; 11. Pressure reducing valve
15.4 Checking the gear mesh clearance (1), the gap between the driven gear and the pump housing (2), axial play (3) and deformation of the hull plane (4)