When rebuilding an engine with the original cylinder block, crankshaft, and pistons, make sure the pistons are in
stalled in the original cylinder. If replacing the piston(s), make sure the replacement piston(s) are the same grade
as the original piston. If a new cylinder block or crankshaft is used, the piston grading procedure Must be performed
to determine the proper piston grade for each cylinder.
NOTE: The connecting rod bearing shells must be installed in the original connecting rod and cap.
Install the upper bearing shell in the connecting rod with the tang of the bearing in the slot of the connecting rod.
Use clean lubricating oil to coat the inside diameter of the connecting rod bearing shell.
Install the bearing shell in the connecting rod cap with the tang of the bearing in the slot to the cap.
Use clean lubricating oil to coat the inside diameter of the bearing shell.
The four digit number stamped on the connecting rod and cap at the parting line must match and be installed on the
oil cooler side of the engine.
Install the connecting rod cap and capscrews to the connecting rod.
12 mm, Torque Wrench
Tighten the two capscrews.
Torque Value: 35 N»m [26 ft-lb]
3823495 dial indicator
Use a fine grit home to remove any burrs from the cylinder block head deck.
Zero “0 ” the dial indicator to the cylinder block head deck.
Move the dial indicator over the piston directly over the piston pin to eliminate any side-to-side movement. Do not
place the indicate tip on the anodized area.
Rotate the crankshaft to top dead center (TDC). Rotate the crankshaft clockwise and counterclockwise to find the
highest dial indicator reading.
Record the reading.
Remove the piston/connecting rod assembly from the No. 1 cylinder and install the assembly into the No. 2 cylinder.
Repeat the procedure for every cylinder using the same piston/connecting rod assembly.
Determine the grade of the piston being used by referring to the chart.
Four digits on top of piston are the last four digits of the part number.
