Fan Hub (Belt Driven) - Rebuild (8-04) Section 8 - Cooling System - Group 08 M11 Page 8-28 Visually check the grease seal contact area on the flange. The grease seal contact area must not be grooved more than 0.25 mm [0.010 inch] deep on the flange. If the groove is deeper than specified, the flange must be replaced. Measure the outside diameter (1) and inside diamter (2) of the flange. Flange O.D. and I.D. Point mm in 1 48.975 49.000 MIN MAX 1.9281 1.9291 2 34.849 34.875 MIN MAX 1.3720 1.3730 Assembly Position the hub in an arbor press with the fan side of the hub facing up. NOTE: If a spacer without slots is used, either end of the spacer can be installed against the retaining ring.
If a slotted spacer is used, install the slotted end of the spacer against the retaining ring. Install the large bearing spacer into the front of the hub.