Piston - Pin to Bore Diameter

WARNING: This page is about a different car, the 2004 Lincoln Navigator and 2004 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Cover the end of the pin bore with a hand or shop rag when removing the retainer ring, since it has a tendency to spring out. Wear eye protection.

NOTE: Piston and piston pins are a matched set and should not be interchanged.

Fig 1: Identifying Piton Pin Bore Diameter

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Directions For Measuring Piton Pin Bore Diameter

Courtesy of FORD MOTOR CO.

Measure the piston pin bore diameter in two directions on each side. Verify the diameter is within specification.
- If out of specification, install new components as necessary. Refer to the appropriate article in ENGINES for the procedure.