Piston and Connecting Rod Removal and Installation

REMOVAL
^ Tools Required
- J 5239 Guide Set, or equivalent





1. Remove the ring ridge.
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 cylinder ring ridge.
d. Turn the crankshaft so the piston is at the top of the stroke.
e. Remove the cloth.
f. Remove the cutting debris.
2. Remove the connecting rod nuts.
3. Remove the connecting rod cap.

NOTE: Place matchmarks or numbers on the connecting rods and the connecting rod caps. Assemble the connecting rod caps to the matching connecting rods.

4. Remove the connecting rod bearings.
^ Keep the bearings with the original connecting rod and connecting rod cap.
^ Wipe the oil from the bearings.
^ Wipe the oil from the crankpins.





5. Use the guide set in order to remove the connecting rod and the piston out of the top of the engine block.

INSTALLATION
^ Tools Required
- J 5239 Guide Set
- J 8037 Piston Ring Compressor
- J 36660 Torque Angle Meter
- Or Equivalents

1. Coat the following components with clean engine oil:
^ The piston.
^ The piston rings.
^ The cylinder bore.
^ The bearing surfaces.
2. Install the piston with the stamped arrow facing forward.
3. Install the piston assembly into its matched bore.
When assembled, the flanges on the connecting rod and cap should face to the front in the left bank and to the rear in the right bank.
4. Use the piston ring compressor and the guide set and to lightly tap the top of the piston with a wooden hammer handle.
^ Hold the piston ring compressor firmly against the engine block until all of the piston rings enter the cylinder bore.
^ Use the guide set in order to guide the connecting rod onto the crankshaft journal.
5. Remove the guide set.
6. Install the connecting rod cap and nuts.
a. On the first pass, tighten the nuts evenly to 27 Nm (20 ft. lbs.).
b. On the final pass, use the torque angle meter in order to tighten the nuts an additional 70°.