Ford Mustang (1999-2004) Service Manual: Crankshaft - Connecting Rod Journal Taper, Out of Round

1. Measure the crankshaft connecting rod journal diameters in two directions perpendicular to one another at each end of the connecting rod journal. The difference in the measurements from one end to the other is the taper. Verify measurement is within the wear limit.

• Refer to the appropriate section in Group 303 for the procedure.
• If out of specification, install new components as necessary. Refer to the appropriate section in Group 303 for the procedure.

Cylinder Bore -Taper

1. Measure the cylinder bore at the top, middle, and bottom of piston ring travel in two directions as indicated. Verify the cylinder bore is within the wear limit. The difference indicates the cylinder bore taper. Bore the cylinder to the next oversize.

• Refer to the appropriate section in Group 303 for the procedure.

Cylinder Bore -Out-of-Round

1. Measure the cylinder bore in two directions. The difference is the out-of-round. Verify the out-ofround is within the wear limit and bore the cylinder to the next oversize limit.

• Refer to the appropriate section in Group 303 for the procedure.