Piston Ring: Service and Repair

REMOVAL
^ Using a piston ring expander, remove two compression rings and oil ring from piston.

INSTALLATION
1. Oil ring to piston head.
2. Compression rings to piston head using a piston ring expander.

NOTE:
^ The compression rings have an R, RN, or T identification mark stamped on one side. When installing these rings to the piston, direct marked side of each ring toward the top of the piston.
^ The upper compression ring differs from the lower compression ring in thickness, shape, and color of cylinder wall contact surface. When installing the oil ring, install the spacer first and then the two rails.
^ Offset the end gap of each ring as shown.