Remove both snap lock rings (8).
Heating of piston should be done In an oil bath. Avoid heating directly.
Heat piston (1) and piston pin (7) to 160-180°F.
Remove piston pin (7) from piston (1).
Connecting rod (2) can now be separated from piston.
Clean connecting rod components with diesel fuel.
Inspect all connecting rod components for bending, warping, cracking, excessive wear, or any other
damage. Replace any components damaged or worn.
Check that piston pin hole ID (small end hole) of connecting rod is less than 0.752 inch (19.1 mm). Re-
place connecting rod if piston pin hole diameter exceeds wear limit.
Check that crank pin hole ID (large end hole) of connecting rod is less than 1.184 inches (30.08 mm).
Replace connecting rod if crank pin hole diameter exceeds wear limit.
Check the thrust surfaces on both ends of the connecting rod for damage. Replace connecting rod if
Check the contact surface of the crank pin bearing insert for separation, melting, seizure, etc. Replace
crank pin bearing insert if it is separated or damaged.
Figure 5-30. Check of Crankpin Bearing Insert
g. Check that clearance between crank pin and crank pin bearing insert is less than 0.004 inch (0.12 mm).
Replace crankpin bearing insert if clearance exceeds wear limit.