Piston Pin: Service and Repair

REMOVAL

Cylinder Block Exploded View:

1. After removal from cylinder block, remove snap rings from pistons.

Heating Pistons:

Pressing Wrist Pins:

2. Heat piston to 60 to 70° C (140 to 158° F) or use piston pin press stand at room temperature.
3. Remove piston pin from connecting rod.

INSTALLATION

Piston Pin Hole Snap Ring:

1. Install new snap ring on one side of piston pin hole.

CAUTION: Align the direction of piston and connecting rod.
Numbers stamped on connecting rod and cap correspond to each cylinder.

Piston And Rod Alignment:

Pressing Piston Pin:

2. Heat piston to 60 to 70° C (140 to 158° F) and assemble piston, piston pin, connecting rod and new snap ring.

CAUTION: After assembly, make sure connecting rod swings smoothly.