Disassembly and Assembly of Sub-Assemblies

Special Tools:

Disassembly





1. CAUTION: Use a suitable ring expander to remove piston rings to prevent damage.

Remove the top compression ring.





2. Remove the second compression ring.





3. Remove the first oil control ring.





4. Remove the oil control spacer ring.





5. Remove the second oil control ring.





6. CAUTION: Do not re-use the piston or pin if removed or damage to the engine may occur.

Note: Take note of piston connecting rod assembly and mark the connecting rod and piston to make sure of correct orientation during reassembly.

Using the special tool, press the piston pin out of the piston connecting rod assembly.





7. Remove the connecting rod from the piston.
8. Clean and inspect the connecting rod.

Assembly

1. Lubricate the new piston pin and new piston's pin bore.
- Use Super Premium SAE 5W-30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.





2. Note: During assembly the small end of the connecting rod must be heated to 232° - 316°C (450° - 600°F).

Using the special tool, press the piston pin into the piston and the connecting rod.





3. Note: Lubricate the piston and the piston rings with Super Premium SAE 5W-30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.

Note: Use a suitable ring expander to install the piston rings. Make sure ring end gaps are equally spaced around the circumference of the piston for all piston rings.

Install the second oil control ring.





4. Install the oil control spacer ring.





5. Install the first oil control ring.





6. Install the second compression ring.





7. Install the top compression ring.
8. Check piston ring end gap and ring-to-groove side