Piston And Connecting Rod - Removal

REMOVAL

Special Tools:










1. Remove the oil fill cap (1).
2. Remove the engine cover (2).





3. Disconnect and isolate the negative battery cable (3).
4. Remove the engine from the vehicle Engine - Removal.
5. Place the engine on a suitable engine stand.






NOTE: The oil pump pickup tube, windage tray and oil pan is one assembly. When the oil pan is removed, a new oil pan gasket and pickup tube O-ring must be installed. The old gasket and O-ring cannot be reused.

6. Remove the engine oil dipstick.
7. Using the sequence shown, remove the oil pan retaining bolts.
8. Remove the oil pan and discard the oil pan gasket and pickup tube O-ring.
9. Clean the sealing surfaces as necessary.





10. Remove the ignition coil retaining bolts (3).
11. Remove the ignition coils (2).





12. Using the sequence shown, remove the cylinder head cover retaining bolts.
13. Remove the cylinder head cover (2).






NOTE: The cylinder head cover gasket (1) may be used again, provided no cuts, tears, or deformation have occurred.

14. Inspect the cylinder head cover gasket (1), replace if necessary.




Right cylinder head shown, left cylinder head similar.

NOTE: The rocker arms and push rods must be installed in their original location as removed.

15. Remove the rocker arms and push rods. Note their location to ensure installation in their original locations as removed Valve Rocker Arm - Removal.




Right cylinder head shown, left cylinder head similar.
16. Using the sequence shown, remove the cylinder head bolts.
17. Remove the cylinder head(s) and discard the cylinder head gasket(s).
18. If necessary, remove the ridge on top of the cylinder bores with a reliable ridge reamer before removing the pistons from the cylinder block. Be sure to keep the tops of the pistons covered during this operation.






CAUTION: Do not use a number stamp or a punch to mark connecting rods or caps, as damage to connecting rods could occur.

NOTE: Connecting rods and bearing caps are not interchangeable and should be marked before removal to ensure correct reassembly.

19. Mark the connecting rod and bearing cap positions using a permanent ink marker or scribe tool.






CAUTION: Care must be taken not to damage the fractured rod and cap joint face surfaces, as engine damage may occur.

CAUTION: Care must be taken not to nick crankshaft journals, as engine damage may occur.

NOTE: Pistons and connecting rod assemblies must be removed from the top of cylinder block. When removing the piston and connecting rod assemblies from the engine, rotate the crankshaft so each connecting rod is centered in the cylinder bore.

20. Perform the measure bearing clearance procedure Measuring Bearing Clearance Using Plastigage.
21. Remove the connecting rod cap, install the Connecting Rod Guides (1) and carefully remove the piston from the cylinder bore, repeat this procedure for each piston being removed.





22. Immediately after removing the piston and connecting rod, install the bearing cap on the mating connecting rod to prevent damage to the fractured cap and rod surfaces.
23. Perform the piston and connecting rod inspection Piston And Connecting Rod - Inspection.
24. Perform the piston fitting procedure Piston And Connecting Rod - Piston Fitting.
25. Carefully remove the piston rings from the piston(s), starting from the top ring down.
26. Perform the cylinder bore honing procedure Cylinder Bore Honing.