Crankshaft Pulley and Hub Installation

Tools Required 

J 29113  Crankshaft Pulley Hub Installer

1. Coat the front cover seal contact area with engine oil.
   Fig 1: Coating Front Cover Seal Contact Area With Engine Oil

   Courtesy of GENERAL MOTORS CORP.
2. Apply RTV sealer GM P/N United States 12346192, GM P/N Canada 10953476 to the keyway in the crankshaft.
3. Install the key into the keyway on the crankshaft.
   Fig 2: Installing Key Into Keyway On Crankshaft

   Courtesy of GENERAL MOTORS CORP.
4. Install the pulley hub into position over the key on the crankshaft.
   Fig 3: Installing Pulley Hub Into Position Over Key On Crankshaft

   Courtesy of GENERAL MOTORS CORP.
5. Install the J 29113  through the hub and into the crankshaft so that at least 6 mm (0.24 in) of thread are engaged.
6. Pull the crankshaft pulley hub into position against the J 29113  .
7. Remove the J 29113  from the crankshaft.
8. Make sure that the hub is seated against the crankshaft.
   Fig 4: Installing Hub

   Courtesy of GENERAL MOTORS CORP.
9. Position the crankshaft pulley over the crankshaft pulley hub.
   NOTE: Refer to FLEX DECOUPLER NOTICE in Cautions and Notices.
10. Install the crankshaft pulley bolts.

    Tighten 

    Tighten the crankshaft pulley bolts to 50 N.m (37 lb ft).

11. Install the crankshaft pulley to hub bolt.

    Tighten 

    Tighten the crankshaft pulley to hub bolt to 105 N.m (77 lb ft).

    Fig 5: Installing Crankshaft Pulley

    Courtesy of GENERAL MOTORS CORP.