Section V - Specifications - Group 18 Component Specifications and Torque Values M11 Page V-25 Component or Assembly (Procedure) Ref.No./Steps Metric U.S. Piston Ring Groove Width Use a new ring and a 0.15 mm [0.006 inch] feeler gauge. If the feeler gauge enters the groove without resistance the piston must be replaced. Piston Pin Bore I.D. Articulated Crown 54.040 mm MIN 2.1276 in 54.055 mm MAX 2.1281 in Articulated Skirt 54.007 mm MIN 2.1263 in 54.015 mm MAX 2.1266 in Piston Pin Length 101.700 mm MIN 4.0039 in 102.000 mm MAX 4.0157 in Piston Pin O.D.
53.997 mm MIN 2.1259 in 54.003 mm MAX 2.1261 in Piston Ring Gap Top 0.46 mm MIN 0.018 in 0.71 mm MAX 0.028 in Intermediate 0.76 mm MIN 0.030 in 1.14 mm MAX 0.045 in Oil 0.25 mm MIN 0.010 in 0.64 mm MAX 0.025 in Gear Housing Bearing Bore I.D.
Hydraulic Drive 41.967 mm MIN 1.6522 in 41.992 mm MAX 1.6532 in Water Pump Drive 36.967 mm MIN 1.4553 in 36.992 mm MAX 1.4564 in Accessory Drive 45.100 mm MIN 1.7756 in 45.125 mm MAX 1.7766 in Hydraulic Pump Needle Bearing Installed Depth 0.25 mm MIN 0.010 in 0.76 mm MAX 0.030 in Water Pump Needle Bearing Installed Depth The bearing must be installed with the part number side of the bearing against the installation tool to prevent bearing damage during installation. Use bearing driver kit, Part No. 3824117, to install to the correct specification.