64. Piston, Connecting Rod, and Bearing Installation
^ Tools Required- J 41556 Connecting Rod Guide
- J 8037 Piston Ring Compressor
- J 36660 Torque Angle Meter
IMPORTANT: The piston and cylinder bore have been measured and the bore has been sized for the proper clearance. Install the piston and connecting rod assembly into the proper cylinder bore. The piston alignment mark MUST face the front of the engine block.
1. Lightly lubricate the following components with clean engine oil:
^ The piston
^ The piston rings
^ The cylinder bore
^ The bearing surfaces
2. Stagger the oil control ring end gaps a minimum of 90°.
3. Stagger the compression ring end gaps a minimum of 25 mm (1.0 inch).
4. Install the J 41556 to the connecting rod.
5. Install the J 8037 onto the piston and compress the piston rings.
IMPORTANT: The piston alignment mark MUST facing the front of the engine block.
6. Install the piston and connecting rod assembly into the proper cylinder bore.
6.1. Hold the piston ring compressor firmly against the engine block. Using a wooden hammer handle, lightly tap the top of the piston until all of the piston rings enter the cylinder bore.
6.2. Use the J 41556 to guide the connecting rod end onto the crankshaft journal.
7. Remove the J 41556.
NOTICE: Refer to Fastener Notice in Service Precautions.
IMPORTANT: Position the connecting rod cap onto the connecting rod properly.
Align the flat side of the connecting rod with the flat side of the rod cap.
8. Install the connecting rod cap, bearing and bolts.
8.1. Tighten the bolts a first pass evenly to 20 Nm (15 ft. lbs).
8.2. Tighten the bolts a final pass to 85° using the J 45059.
9. Inspect the connecting rods for proper orientation onto the crankshaft journal.
10. With the pistons and connecting rods installed, use a soft faced mallet and lightly tap each connecting rod assembly parallel to the crankpin to make sure that the rods have side clearance.
11. Measure the connecting rod side clearance using a feeler gauge or a dial indicator. Connecting rod side clearance should be within 0.11 - 0.51 mm (0.0043 - 0.02 inch).