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Home >> GMC >> 1989 >> Value Van P3500, 4.8 T, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L (305") V8 - VIN [H] >> Removal & Installation >> Oil Pump >> Disassembly

Oil Pump: Disassembly

Remove pump cover. If necessary, remove inlet tube and screen assembly. Mark gears at a meshing point, so they may be reassembled with same gear teeth indexing. Remove gears. Remove pressure regulator retaining pin. Remove washer (if equipped), pressure regulator valve and spring.