Removal (All Except Corvette) 1. Raise and suitably support vehicle. 2. Remove serpentine drive belt. 3. If equipped with a mechanical fan: remove radiator fan upper shroud. See Fig. 4 . Remove bolts and screws (25 and 26) from upper shroud assembly (27). Remove upper shroud assembly (27) from lower shroud assembly (28) and radiator support assembly. Remove fan. 4. Mark fan belt drive pulley to crankshaft balancer pulley, remove pulley. Mark crankshaft pulley to the hub. Remove crankshaft balancer pulley bolts/screws (46) and remove the balancer assembly (42). 5. Remove hub only if necessary. Mark crankshaft hub (45) to engine front cover assembly. DO NOT crank engine over after match-marking crankshaft hub and engine front cover assembly. Rotating crankshaft assembly will misalign installation of balancer assembly to crankshaft assembly possibly resulting in engine imbalance. 6. Remove crankshaft hub bolt/screw and washer. Pull crankshaft hub (45) using Crankshaft Hub Remover/Installer (J 39046).
NOTE: For component identification in removal and installation procedures. Refer to illustrations. See Fig. 4 and Fig. 7 . NOTE: Remove only the balancer pulley.
Saturday, January 24th, 2009 AT 9:08 AM