Valve Train Analysis - Static
ROCKER ARMSCheck the following:
1. Visually inspect rocker arms, rocker arm shafts, and valve tappets for damage.
2. Check for plugged oil feeds in the rocker arms, rocker arm shafts, valve tappets, and cylinder head.
3. Check for loose mounting bolts on rocker arm shaft(s).
CAMSHAFT-OVERHEAD CAMSHAFT ENGINES
Visually inspect the camshaft for pitting in the lobe area, wear, or damage.
VALVE SPRINGS
Check for broken or damaged parts.
VALVE SPRING RETAINER AND VALVE SPRING RETAINER KEY
Check for proper seating of valve spring retainer keys on the valve stem and in the valve spring retainer.
VALVES AND CYLINDER HEAD
1. Visually inspect the cylinder head for damage.
2. Check the head gasket for proper installation.
3. Check for plugged oil drain-back holes.
4. Check for worn or damaged valve tips.
5. Check for missing or damaged guide-mounted valve stem seals.
6. Check for missing or worn valve seats.
7. Check all oil passages for blockage.