Control Valve Body & Oil Pump Assemblies: Inspection

1987 Pontiac Fiero Base, AutomaticSECTION Inspection
  1. Clean all components. DO NOTΒ  clean pump seals in solvent. Check all parts for wear or damage.
  2. Replace pump shaft bearing assembly using Bearing Remover/Installers (J-28698 and J-7092-2). Drive bearing out toward case cover side. Using bearing installers, press bearing and seal assembly flush to .012" (.3 mm) below pump pocket.
  3. Measure the pump rotor and/or slide thickness. Measure on flat, undamaged surface. Use original measurement when obtaining replacement parts. Pump rotor thicknesses range from .7052-.7071" (17.912-17.962 mm) in .0005" (.013 mm) increments. Hone both sides of replacement rotor and/or slide to remove burrs.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.