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Home >> Ford >> 2007 >> Edge SEL Plus, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 451 (Engine - 6.0L (99P F450/550) Diesel -- F250-F550 Super Duty) >> General Procedures >> Oil Pump Rotor Inspection >> Clearance Test

Clearance Test

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the oil pump for excessive metal particles.
  2. Inspect the oil pump for gouging, cracks or deep scratches.
  3. Inspect the oil pump inner and outer gear rotors for damage or excessive wear.
  4. Using a straightedge and the Feeler Gauge, measure the height clearance between the oil pump housing and the inner and outer rotors. If the measurement does not meet specifications, install new gerotors as a set.
    Fig 1: Measuring Height Clearance Between Oil Pump Housing And Inner And Outer Rotors
    G04648330Courtesy of FORD MOTOR CO.
  5. Using the Feeler Gauge, measure the clearance between the outer rotor and the oil pump housing. If the measurement does not meet specifications, install new gerotors as a set.
    Fig 2: Identifying Oil Pump Housing Specification
    G04648331Courtesy of FORD MOTOR CO.
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