Explorer Sport Trac 2WD V6-4.0L VIN E (2002)
Piston: Specifications
Piston and Connecting Rod
Piston diameter-coded STD mm (inch) .............................................................................................................................. 100.380-100.400 (3.952-3.9528)
Piston diameter-coded 0.5 mm (inch) ............................................................................................................................................ 100.880-100.900 (3.972)
Piston diameter-coded 1.0 mm (inch) ................................................................................................................................. 101.350-101.370 (3 990-3.991)
Piston-to-cylinder bore clearance mm (inch) ............................................................................................................................. 0.030-0.060 (0.0012-0.002)
Piston top ring end gap mm (inch) ............................................................................................................................................... 0.200-0.450 (0.008-0.018)
Piston bottom ring end gap mm (inch) ......................................................................................................................................... 0.450-0.700 (0.018-0.028)
Piston top ring groove width mm (inch) ...................................................................................................................................... 1.64-1.66 (0.0645-0.0654)
Piston bottom ring groove width mm (inch) ................................................................................................................................ 1.79-1.81 (0.0705-0.0713)
Piston oil ring groove width mm (inch) ......................................................................................................................................... 3.5-3.53 (O.1378-0.1399)
Piston top ring width mm (inch) .................................................................................................................................................. 1.578-1.598 (0.062-0.063)
Piston bottom ring width mm (inch) ............................................................................................................................................... 1.728-1.74(0.068-0.069)
Piston top ring-to-groove clearance mm (inch) .......................................................................................................................... 0.050-0.082 (0.002-0.0003)
Piston bottom ring-to-groove clearance mm (inch) ...................................................................................................................... 0.050-0.082 (0.002-0.003)
Piston pin bore diameter (red) mm (inch) .......................................................................................................................................... 24.007-24.010 (0.945)
Piston pin bore diameter (blue) mm (inch) ......................................................................................................................................... 24.010-24.013 (0.945)
Piston pin diameter (red) mm (inch) .................................................................................................................................... 23.994-23.997 (0.9446-0.9447)
Piston pin diameter (blue) mm (inch) .................................................................................................................................. 23.997-24.000 (0.9447-0.9449)
Piston pin length mm (inch) ............................................................................................................................................................. 72.0-72.8 (2.835-2.866)
Piston pin-to-piston pin fit mm (inch) ........................................................................................................................................ 0.01-0.016 (0.0004-0.0006)
Piston pin-to-connecting rod clearance mm (inch) ..................................................................................... Press Fit -0.018 to -0.042 (-0.0007 to -.0017)
