Engine Off

Valve Cover Removed
Check for damaged or severely worn parts and correct assembly. Make sure correct parts are used with the static engine analysis as follows.

Rocker Arm (Pushrod Engines)
^ Check for loose mounting bolts, studs and nuts.
^ Check for plugged oil feed in the rocker arms or cylinder head.

Cam Roller/Hydraulic Lash Adjusters (Overhead Cam Engines)
^ Check for loose mounting bolts on camshaft carriers.
^ Check for plugged oil feed in the camshaft roller followers, lash adjusters or cylinder heads.

Overhead Camshaft Engines
^ Check for broken or damaged parts.

Pushrods (Pushrod Engines)
^ Check for bent push rods and restricted oil passage.

Valve Springs
^ Check for broken or damaged parts.

Valve Spring Retainer and Valve Spring Retainer Keys
^ Check for proper seating of the valve spring retainer key on the valve stem and in valve spring retainer.
^ Check for proper seating on the valve stem.

Valves and Cylinder Head
^ Check for plugged oil drain back holes.
^ Check for worn or damaged valve tips.
^ Check for missing or damaged guide-mounted valve stem sea].
^ Check collapsed valve tappet gap.
^ Check installed valve spring height.
^ Check for missing or worn valve spring seats.
^ Check for plugged oil metering orifice in cylinder head oil reservoir (if equipped).

Static checks (engine off) are to be made on the engine prior to the dynamic procedure.