Piston - Diameter

WARNING: This page is about a different car, the 2003 Lincoln Navigator and 2003 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Measure the piston diameter 90 degrees from the piston pin at the point indicated. Refer to SYSTEM & COMPONENT TESTING - GASOLINE for the procedure.
- If out of specification, install new components as necessary. Refer to REMOVAL & INSTALLATION - BLACKWOOD, EXPEDITION, F150 PICKUP & NAVIGATOR - GASOLINE for the procedure.
  
  Fig 1: Measuring Piston Diameter
  Courtesy of FORD MOTOR CO.