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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 4.3L V6 - VIN [Z] >> Lubrication >> Oil Pump >> Disassembly

Oil Pump: Disassembly

Remove pump cover. If necessary, remove inlet tube and screen assembly. Mark relationship between gears at a meshing point for reassembly. Remove gears. Remove pressure regulator retaining pin. Remove washer (if equipped), pressure regulator valve and spring.