7. CYLINDER/PISTON DINK 50/125 Piston/Piston pin Measure the piston O.D. at the point (A) from the bottom and 90° to the piston pin hole. 10 mm (A) Service Limit: 52.3 mm (2.092 in) at (A): 9 mm (0.36 in) Calculate the cylinder-to-piston clearance. Measure the piston pin hole. Take the maximum reading to determine the I.D.. Service Limit: 15.04 mm (0.6016 in) Measure the piston pin O.D. at piston and connecting rod sliding areas. Service Limit: 14.96 mm (0.5984 in) Measure the piston-to-piston pin clearance. Service Limit: 0.02 mm (0.0008 in) 7-7