DISASSEMBLY OF PISTON AND CONNECTING ROD ASSEMBLY 1. CHECK FIT BETWEEN PISTON AND PIN Rock the piston back and forth on the piston pin. If any movement is felt, replace the piston and pin. 2. REMOVE PISTON RINGS Using a piston ring expander, remove the piston rings. Keep the rings for each cylinder separated. 3. DISCONNECT CONNECTING ROD FROM PISTON (a) Using needle-nose pliers, remove the snap rings from the piston. (b) Heat the piston in hot water to approx. 60°C (140°F). (c) Using a plastic-faced hammer and driver, tap the pin lightly to remove the pin from the piston. NOTE: • The piston and pin are a matched set. • Keep the piston, piston pin and rings and connecting rod together for each cylinder. INSPECTION OF PISTON AND CONNECTING ROD ASSEMBLY 1. CLEAN PISTON (a) Scrape any carbon from the piston top. (b) Using a grooved cleaning tool or broken ring, clean the ring grooves. (c) Using a brush and solvent, clean the piston thoroughly. CAUTION: Do not use a wire brush.