4. Calculate: piston-pin-to-piston-pin-bore clearance Out of specification Replace the piston pin and piston as a set. Piston-pin-to-piston-pin-bore clearance = Piston pin bore diameter b Piston pin outside diameter a Piston-pin-to-piston clearance 0.004 ~ 0.024 mm (0.0002 ~ 0.0009 in) : 0.074 mm (0.0029 in) EBS00252 INSTALLING THE PISTON AND CYLINDER 1. Install: top ring 1 2nd ring 2 oil ring expander 3 lower oil ring rail 4 upper oil ring rail 5 NOTE: _ Be sure to install the piston rings so that the manufacturer’s marks or numbers face up. 4 - 39 CYLINDER AND PISTON ENG