Engine Off

Valve Train Analysis - Engine Off
Static checks (engine off) are to be made on the engine prior to the dynamic analysis.

Valve Train Analysis - Engine OFF, Valve Cover Removed
Check for damaged and/or severely worn parts and correct assembly. Make sure correct parts are used with the static valve train analysis.

Valve Train Analysis - Engine OFF, Rocker Arm - 3.0L Engine (Push Rod)
1. Check for loose mounting bolts, studs and nuts.
2. Check for plugged oil feed in the rocker arm or cylinder head.

Valve Train Analysis - Engine Off - 3.0L Engine (Push Rod)
1. Check for bent push rods and restricted oil passage.

Valve Train Analysis - Engine OFF, Valve Tappets
Inspect the valve tappets for:
- excessive tappet gap.
- sticking tappet bucket.

Replace valve tappets as necessary. Refer to Mazda B-Series Engine Workshop Manual.

Valve Train Analysis - Engine OFF, Camshaft - Overhead Camshaft Engines
Inspect the camshaft for:
- scoring.
- scratches.
- excess wear on the camshaft lobes. Replace the camshaft if necessary. Refer to Mazda B-Series Engine Workshop Manual.

Valve Train Analysis - Engine OFF, Valve Springs
1. Check for broken or damaged valve springs.
2. Check valve spring strength. Refer to procedure.
Replace as necessary.

Valve Train Analysis - Engine OFF, Valve Spring Retainer and Valve Spring Retainer Keys
Check for proper seating of valve spring retainer keys on the valve stem and in the valve spring retainer.

Valve Train Analysis - Engine OFF, Valves and Cylinder Head
1. Check for plugged oil drain back holes.
2. Check for worn or damaged valve tips.
3. Check for missing or damaged valve stem seals.
4. Check for excessive valve tappet gap.
5. Check installed valve spring length; refer to the procedure.

Replace components as necessary.