Tools Required

1. Remove the oil pan. Refer to Oil Pan Replacement .
2. Remove the oil pump. Refer to Oil Pump Replacement .
3. Remove the cylinder head. Refer to Cylinder Head Replacement .



4. Remove the ring ridge as follows:

4.1.	Turn the crankshaft until the piston is at the bottom of the stroke.

4.2.	Place a cloth on top of the piston.

4.3.	Use a ridge reamer to remove the ring ridge.

4.4.	Turn the crankshaft so the piston is at top of the stroke.

4.5.	Remove the cloth and cutting debris.





Important: Place the numbers on connecting rods and the connecting rod caps. The connecting rod caps must be assembled to their original connecting rods.

5. Remove the connecting rod nuts and the connecting rod cap.
6. Remove the connecting rod and the piston out of the top of the engine block using the J 5239 .
7. Clean the cylinder bores with hot water and detergent or with a light honing.
8. Swab bores with the engine oil and a clean, dry cloth.

1. Coat the following parts with engine oil:

•	The piston

•	The piston rings

•	The cylinder bore

•	The bearing surfaces




2. Install the piston into its original bore using the J 5239 and the J 8037 .



3. Lightly tap the top of the piston with a wooden hammer handle.
4. When installing the piston and the connecting rod, the stamped arrow on the piston must point to the front of the engine while the flange on the connecting rod must face toward the front of the piston on the lefthand and face toward the rear of the piston on the righthand.
5. Hold the J 8037 firmly against the engine block until all the piston rings have entered the cylinder bore.
6. Install the connecting rod caps onto their original connecting rods.
7. Align the numbers placed on the connecting rod and the connecting rod cap during removal.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

8. Install the connecting rod nuts.

Tighten

•	On the first pass, tighten the nuts evenly to 27 N·m (20 lb ft).

•	On the final pass, use the J 36660-A in order to tighten the nuts an additional 55 degrees.

9. Install the cylinder head. Refer to Cylinder Head Replacement .
10. Install the oil pump. Refer to Oil Pump Replacement .
11. Install the oil pan. Refer to Oil Pan Replacement .