Disassembly and Assembly

DISASSEMBLY





1. Remove the bolt and the Camshaft Position (CMP) sensor.





2. Remove the bolts, the rocker arm seats, and the rocker arms.





3. Remove the valve tappet(s).
1 Remove the valve tappet guide plate retainers.
2 Remove the valve tappet guide plates.
3 Remove the valve tappets.

NOTE: Always return the valve tappets to their original tappet bores unless they are being replaced.





4. Remove the bolts and the engine lifting eye.





5. Remove the (A) bolts and the (B) camshaft thrust plate.





6. Use Seal Remover to remove the camshaft front seal.





7. Remove the camshaft.

NOTE: The camshaft can be removed in either direction.





8. Use (A) Valve Spring Compressor to compress the valve springs. While the valve spring is compressed, remove the (B) valve spring retainer key.

NOTE: Identify all parts with respect to the cylinder from which they were removed and whether the valve is an intake valve or an exhaust valve.

9. Slowly remove the valve spring compressor tool.





10. Remove the valves valve spring retainer and the valve spring.





11. Remove the valves.





12. Remove and discard the valve stem seals.

ASSEMBLY





1. Install the valve stem seals.

NOTE: Use the seal protector provided with the replacement kit to prevent damage to the valve stem seals.





2. Install the exhaust and intake valves.

NOTE: If installing the original valves, make sure that the valves are installed in the position from which they were removed. Coat the valve stems with Super Premium SAE 5W30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G before Installation.





3. Use (A) Valve Spring Compressor to install the valve springs, valve spring retainers, and the (B) valve spring retainer keys.





4. Install the camshaft.

NOTE:
- Lubricate the camshaft lobes and bearing surfaces with heavy engine oil (SG grade).
- Inspect for the presence of a clogged oil gallery. Verify that the camshaft contains the camshaft oil flow control rod and the rear end has a cup plug installed prior to the installation of the camshaft.

5. Apply a thin film of light engine oil to the lip of the camshaft front seal.





6. Use Camshaft Seal Replacer to install the camshaft front seal.

NOTE: The seal depth should be 0.05-0.0 mm (0.002-0.04 inch) below flush with the cylinder head front face.





7. Install the (A) camshaft thrust plate and the (B) camshaft thrust plate bolts.





8. Install the engine lifting eye.





9. Install the (A) valve tappets, the (B) valve tappet guide plates, and the (C) valve tappet guide plate retainers.

NOTE:
- Lubricate the valve tappets with engine oil before installing.
- Always return the valve tappets to their original tappet bores unless they are being replaced.
- The oil feed hole in the valve tappets must face away from the oil feed hole in the cylinder head.
- Be certain the valve tappet guide plate retainer tabs are toward the rear of the cylinder head and the valve tappet guide plate tabs are toward the front of the cylinder head.





10. Install the rocker arms.





11. Install the CMP sensor.