Photo 29.1. Removing the screws securing the rear oil pump cover.
2. Check the clearance between the teeth of the outer and inner gears and the axial clearance between the ends of the gears and the pump housing (see photo).
Photo 29.2A. Checking the gap between the teeth of the pump gears.
Photo 29.2B. Checking the oil pump gear clearance.
3. If any of the gaps are outside the acceptable limits, the defective parts must be replaced. Please note that there is a special mark on the surface of the outer gear to facilitate its correct installation.
Photo 29.3. Installation mark on oil pump gear (shown by arrow).
4. You can unscrew the pressure regulator valve from the pump housing and clean and inspect its parts (see photo).
Photo 29.4. Oil pump pressure regulator valve (engine 1.3).
5. Please note that engines of different sizes have different valves. The copper washer of the valve located on the 1.3 engine must be replaced during assembly.
b. Always replace the seal (To replace it, you can use the head of a socket wrench (see photo).
Photo 29.6. Oil pump seal.
Pic. 1.24. Pressure control valve - 1.6 engine
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