Explorer 4WD V8-4.6L (2008)
![background image](/ford/explorer_4wd/v8-4.6l/Page-658004.png)
Piston Ring-to-Groove Clearance
1. Inspect the piston for ring land damage or accelerated wear.
2. Measure the piston ring-to-groove clearance.
Piston Pin Diameter
1. Measure the piston pin diameter in 2 directions at the points shown. Verify the diameter is within specification.