Ranger 2WD V6-3.0L VIN U (1998)
Piston: Specifications
Diameter
Coded Red ........................................................................................................................................................... 88.962-88.978 mm (3.5024-3.5031 In.)
Coded Blue .......................................................................................................................................................... 88.988-89.004 mm (3.5035-3.5041 In.)
Coded Yellow ...................................................................................................................................................... 89.014-89.030 mm (3.5045-3.5051 In.)
Piston-to-Bore Clearance ......................................................................................................................................... 0.030-0.056 mm (0.0012-0.0022 In.)
Service Limit ............................................................................................................................................................................................. 0.081 mm Max.
Service Piston Selection (b)
Piston Bore Diameter ........................................................................................................................................................ Service Piston Grade Required
89.009-89.035 mm (3.5043-3.05053 In.) ................................................................................................................................................................... RED
89.035-89.060 mm (3.5053-3.5063 In.) ................................................................................................................................................................... BLUE
89.060-89.086 mm (3.5063-3.5073 In.) ............................................................................................................................................................ YELLOW
Ring Groove Width
Compression (Top) .................................................................................................................................................. 1.530-1.555 mm (0.0602-0.0612 In.)
Compression (Bottom) ................................................................................................................................................. 1.530-1.555 mm (0.602-0.612 In.)
Oil ............................................................................................................................................................................ 4.030-4.055 mm (0.1587-0.1596 In.)
(b) When replacing pistons, measure the cylinder bore, and install the indicated service piston.
