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 on top of piston is pointed toward front of engine.
- Start piston pin in piston and rod. Using guide bar and push rod, press pin through both 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. (2268 kg) pressure with press. Ensure piston floats during pin installation operation.
NOTE:
Following procedures are with oil pan and cylinder heads removed. 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". During production, .009" undersize bearings may have been installed for close tolerances on some journals.