Camshaft Bearing Journal Diameter

Camshaft Bearing Journal Diameter
1. Determine the diameter of the camshaft journals.
^ Using a micrometer measure the diameter at 90° intervals to determine if the journals are out-of-round.
^ Measure at two different points on the journal to determine if there is any tapering.
^ If the measurements are out of the specified range, install a new camshaft.





Camshaft End Play

1. NOTE: Make sure that the camshaft is to specification.

Using the special tool, measure the end play.
^ Slide the camshaft in both directions. Read and note the maximum and minimum values on the dial indicator gauge. End play = maximum value minus minimum value.
^ If the measurement is out of specification, install new components.





Camshaft Lobe Lift
1. Measure the diameter (1) and diameter (2) with a vernier caliper. The difference in measurements is the lobe lift.