Piston Pin Bore Diameter

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to the appropriate Engine for the specification.

WARNING: Since the retainer ring has a tendency to spring out, cover the end of the pin bore with a hand or shop rag when removing the ring. Wear eye protection. Failure to follow these instructions may result in serious personal injury.

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

Fig 1: Identifying Piston Pin Retainer Ring

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Directions Fro Measuring Piston Pin Bore Diameter

Courtesy of FORD MOTOR CO.

Measure the piston pin bore diameter in 2 directions on each side. Verify the diameter is within specification.