Fan Idler Pulley - Rebuild (8-06) Section 8 - Cooling System - Group 08 M11 Page 8-34 Remove the cover plate and o-ring from the idler pulley. Discard the o-ring. Install the pulley shaft in a vise with brass jaws. Remove the capscrew (1) and washer (2) from the pulley shaft. Remove the idler pulley from the shaft. Remove the front bearing (1) from the idler pulley. Remove the bearing spacer (2) from the idler pulley.