Contents Wiring diagrams Section: Mechanical All sections

Removal & Disassembly Buick LeSabre VII

Remove front cover. See FRONT COVER under REMOVAL & INSTALLATION. Remove oil filter adapter, gasket, pressure regulator and valve from front cover. Remove pump cover bolts, cover and gears from front cover.

Inspection

  1. Inspect components for damage. Measure gear end clearance. Measure housing gear pocket depth and diameter. Measure tip clearance between gears. Measure outer gear-to-housing clearance.
  2. Check clearance between pressure regulator valve and bore. Replace components or pump assembly if measurements are not within specification. See «OIL PUMP SPECIFICATIONS»(ref-50089-S23302426262001011600000) table.