Connecting Rod: Service and Repair
Tool Required, or equivalent:^ J5239 Connecting Rod Bolt Guide Set
^ J8037 Piston Ring Compressor
^ J36660 Torque Angle Meter
REMOVAL
1. Remove the oil pan.
2. Remove the oil pump.
3. Remove the cylinder head.
4. Remove the ring ridge as follows:
a. Turn the crankshaft until the piston is at the bottom of the stroke.
b. Place a cloth on top of the piston.
c. Use a ridge reamer to remove the ring ridge.
d. Turn the crankshaft so the piston is at top of the stroke.
e. Remove the cloth and cutting debris.
CAUTION: 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 Connecting Rod Bolt Guide Set.
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.
INSTALLATION
1. Coat the following parts with engine oil:
^ he piston
^ The piston rings
^ The cylinder bore
^ The bearing surfaces
2. Install the piston into its original bore using the Connecting Rod Bolt Guide Set and the Piston Ring Compressor.
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 Piston Ring Compressor 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.
8. Install the connecting rod nuts.
^ On the first pass, tighten the nuts evenly to 27 Nm (20 ft. lbs.).
^ On the final pass, use the Torque Angle Meter in order to tighten the nuts an additional 55 degrees.
9. Install the cylinder head.
10. Install the oil pump.
11. Install the oil pan.