Disassembly and Assembly of Sub-Assemblies
Piston-Pin Connecting Rod, Press FitSpecial Tools:
Special Tool(s)
Disassembly
1. NOTE: Use a suitable ring expander to remove piston rings to prevent damage.
Remove the piston rings one at a time starting with the top compression ring and finishing with the lower oil control ring.
2. NOTE: Take note of piston connecting rod assembly and mark the piston and the connecting rod to make sure of correct orientation during reassembly.
Using the special tool, press the piston pin out of the piston and connecting rod assembly.
3. Remove the connecting rod from the piston.
4. Clean and inspect the piston and the connecting rod.
Assembly
1. Lubricate the piston pin and piston pin bore with clean engine oil.
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 clean engine oil.
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 the piston ring end gap and ring-to-groove side clearance.