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Home >> Ford >> 2000 >> Excursion 7.3 F, RWD >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine - 7.3L (99F E Series & 99F F450/550) V8 Turbo Diesel - VIN F >> Engine Oiling >> Oil Cooler Assembly >> Oil Cooler Leakage Test

Oil Cooler Leakage Test

  1. Using NEW gaskets, install Oil Cooler Leakage Tester (014-00726) on oil cooler assembly. Apply 40 psi (2.8 kg./cm2 ) air pressure on fitting on coolant side of oil cooler front header.
  2. Inspect for air leakage at plastic tubes and at oil cooler front and rear header cover plates. If no air leakage exists, place a cup of water up to plastic tubes, and check for bubbles.
  3. If no bubbles exist, no internal leak exists and oil cooler is okay. If bubbles exist, an internal leak exists in oil cooler. If internal leak exists, disassemble oil cooler assembly and replace oil cooler.
  4. Release air pressure. Remove oil cooler leakage tester.
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