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Camshaft Journal to Bearing Clearance

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  1. Inspect the 5 camshaft bushings for wear and correct running clearance.
  2. Use a telescoping gauge and a 50-75 mm (2-3 in) micrometer to measure the camshaft bushing inside diameter with the bushings installed in the crankcase.
    Fig 1: Measuring Camshaft Bushing Inside Diameter Using Micrometer
    G08593061Courtesy of FORD MOTOR CO.
  3. To determine running clearance, subtract previous camshaft journal diameter readings from camshaft bushing inside diameter readings.
  4. If maximum allowable running clearance is exceeded, install new camshaft bushings. For additional information, refer to SPECIFICATIONS .