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Removal & Disassembly Chevrolet Astro I

Mechanical ~103 words
  1. Remove oil pan. See «OIL PAN»(ref-50103-S39853932342001011600000) under REMOVAL & INSTALLATION. Remove oil pump bolt. Remove pump and extension shaft. Remove pick-up tube (if necessary).
  2. Remove pump cover. Mark relationship between gears at a meshing point for reassembly. Remove gears. Remove pressure regulator valve retaining pin. Remove pressure regulator valve and spring.

Inspection

Inspect pump body and cover for cracks or excessive wear. Inspect pump gears for damage or wear. Check drive gear shaft for looseness in pump body. Check pressure regulator valve for fit in bore. Replace entire pump assembly if damaged. Inspect inlet tube and screen assembly for damage.

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