Rod, Piston And Connecting: Removal
- Remove the oil pan and windage tray. Refer to PAN, OIL, REMOVAL .
- Remove the cylinder head. Refer to REMOVAL
.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.
- Mark connecting rod and bearing cap positions (1) using a permanent ink marker or scribe tool.
- 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.
- Remove the connecting rod cap bolts (2) and the connecting rod cap (1) with lower half-bearing. Discard the cap bolts (2).NOTE:
Special care is necessary when handling the joint (1) separating upper and lower halves of the connecting rod. This fractured surface is sensitive and easily damaged, preventing proper reassembly of the cap to the rod. Avoid touching the fractured surfaces and contact with any other work surfaces. Under no circumstances should these surfaces be brushed. It is critical that the joint not be altered in any way during disassembly and assembly.
CAUTION:Care must be taken not to nick crankshaft journals, as engine damage may occur.
- Install the (special tool #8189, Guide Pins) (1) on the connecting rod being removed.
- Remove the piston (1) and connecting rod from the cylinder bore.
- Immediately after piston and connecting rod removal, reinstall the bearing cap on the mating connecting rod to prevent damage to the fractured cap and rod surfaces.
- Repeat the previous steps for each piston and connecting rod being removed.