Fitting Piston Pins: Installation

Check piston-to-cylinder bore clearance before assembling piston and pin to rod. Ensure oil hole in rod aligns with oil hole in bearing and arrow or notch on top of piston is pointed toward front of engine.
Start pin in piston and rod. Using guide bar and push rod, press pin through piston and rod until pilot hub bottoms on support fixture and/or pin is centered in piston. After pilot hub bottoms, DO NOT exceed 5000 lbs. (2275 kg) pressure with press. Make certain piston floats during pin installation operation.
NOTE: Main and rod bearing size is indicated by letter stamped into bearing tang or actual bearing size stamped opposite of tang. Bearing marks are as follows: A - .0005", B - .0010", and C - .0015".