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Valve Stem Oil Seals

  1. Lubricate valve stem oil seal with engine oil. Assemble Valve Stem Oil Seal Installer Set (49-L012-001, 49-L012-005 and 49-L012-002).
  2. Adjust valve stem oil seal installer depth to .641" (16.28 mm) for intake valve stem oil seal or .543" (13.80 mm) for exhaust valve stem oil seal. See Fig 1.
    NOTE: Intake and exhaust valve seals are different. Exhaust valve seal has 2 ridges on top and intake valve seal has one or none. Ensure proper valve stem oil seal is used.
  3. Insert valve stem oil seal into installer. Press valve stem oil seal onto valve guide until fully seated. Remove valve stem oil seal installer.
Fig 1: Adjusting Valve Stem Oil Seal Installer
G93D02454Courtesy of MAZDA MOTORS CORP.
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