Piston And Connecting Rod - Removal

REMOVAL

Special Tools:










1. Disconnect and isolate the negative battery cable.
2. Remove the oil pans, engine timing cover and cylinder heads Cylinder Head - Removal
3. Remove the engine oil pump Engine Oil Pump - Removal
4. Remove the eight main bearing cap bolts from the windage tray in the sequence shown and remove the windage tray (1).





5. If necessary, remove the top ridge of the cylinder bores with a reliable ridge reamer before removing the pistons from the engine block. Be sure to keep the tops of pistons covered during this operation. Pistons and connecting rods must be removed from the top of the engine block. When removing piston and connecting rod assemblies from the engine, rotate the crankshaft CW so that each connecting rod is centered in the cylinder bore.

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 removing to ensure correct reassembly.

6. Mark connecting rod and bearing cap positions (1) using a permanent ink marker or scribe tool.






NOTE: Typical V6 engine configuration shown.

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

7. Remove the connecting rod cap bolts (5) and the connecting rod cap (4). Discard the cap bolts.

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

8. Remove the plastic guide plates (3) from the Guide Pins (7) and install the Guide Pins to the connecting rod being removed.

CAUTION: Avoid contact with the piston oil cooler jet(s). Positioning of the oil cooler jet(s) is critical for proper engine operation.

9. Remove the piston and connecting rod (1) from cylinder bore.
10. Repeat the previous steps for each piston being removed.
11. Immediately after piston and connecting rod removal, reinstall the bearing cap (4) on the mating connecting rod to prevent damage to the fractured cap and rod surfaces.
12. If required, remove the piston rings Piston Ring(s) - Removal
13. Repeat the previous steps for each piston being removed.