Aerio L4-2.3L (2006)
If measured camshaft journal clearance exceeds limit, measure journal (housing) bore and outside diameter of camshaft journal. Replace camshaft
or cylinder head assembly whichever the difference from specification is greater.
Camshaft journal
Wear of hydraulic valve lash adjuster
Check adjuster for pitting, scratches, or damage.
If any malcondition is found, replace.
Measure cylinder head bore and adjuster outside diameter to determine cylinder head-to-adjuster clearance. If clearance exceeds limit, replace adjuster
or cylinder head.
Cylinder head bore and adjuster outside diameter
Oil relief valve
Check oil relief valve for clogging and ball for being stuck.