Ford Mustang (1999-2004) Service Manual: Piston - Pin to Bore Diameter

1. 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.

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.

Piston - Pin to Bore Diameter

 

Piston - Pin to Bore Diameter

Piston -Diameter

1. Measure the piston diameter 90 degrees from the piston pin at the point indicated.

  • If out of specification, install new components as necessary.

Piston -Diameter

Piston -to Cylinder Bore Clearance

1. Subtract the piston diameter from the cylinder bore diameter to find the piston-to-cylinder bore clearance.

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