Inspection (page 2 of 2)

9. Measure widest portion of Plastigage on each journal.

Camshaft – to – holder Oil Clearance:
Standard (New): 0.050 – 0.089mm
Service Limit: 0.15mm

10. If camshaft – to – holder oil clearance is out of tolerance:
    – And the camshaft has already been replaced you must replace the cylinder head.
    – If camshaft has not been replaced, support camshaft on V – blocks as shown. Slowly rotate camshaft and measure runout.

Camshaft Total Runout:
Standard (New): 0.03mm
Service Limit: 0.04mm

– If the total runout of the camshaft is within tolerance, replace the cylinder head.
– If the total runout is out of tolerance, replace the camshaft and recheck. If the oil clearance is still out of tolerance, replace the cylinder head.

11. Check cam lobe height wear and check for wear in areas arrowed.

Cam lobe height standard (New):
F20Z1 engine
INTAKE 38.741mm
EXHAUST 38.972mm
F20Z2 engine
INTAKE 38.095mm
EXHAUST 37.890mm