Primary Cam Chain Idler Sprocket Hub

REMOVAL 

1. Remove the powertrain from the vehicle, separate the engine from the transmission and place the engine on a maintenance stand. Refer to REMOVAL AND INSTALLATION .
2. Remove the flexplate. Refer to FLEXPLATE, REMOVAL AND INSTALLATION .
3. Remove the timing chain cover and oil pump drive chain. Refer to CHAIN AND SPROCKETS, TIMING, REMOVAL AND INSTALLATION .
4. Remove the primary camshaft chain. Refer to CHAIN AND SPROCKETS, TIMING, REMOVAL AND INSTALLATION .

   Courtesy of CHRYSLER GROUP, LLC

5. Remove the bolts (1a) and the hub (1b) complete with O-ring (1c).

INSTALLATION 

1. Install a NEW  O-ring on the hub flange.

   Courtesy of CHRYSLER GROUP, LLC

   NOTE:

   To install the hub properly, align the two channels (a) with the oil ducts (b) shown in illustration.

2. Install the hub (1) with a NEW  O-ring.

   Courtesy of CHRYSLER GROUP, LLC

3. Tighten the hub bolts (1) to the proper specification. Refer to TORQUE SPECIFICATIONS  .

   Courtesy of CHRYSLER GROUP, LLC

   NOTE:

   After installation, the threaded hole (a) for securing the front bearing flange must be at the bottom as shown in illustration.

4. Install the primary camshaft chain. Refer to CHAIN AND SPROCKETS, TIMING, REMOVAL AND INSTALLATION .
5. Install the oil pump drive chain and timing chain cover. Refer to CHAIN AND SPROCKETS, TIMING, REMOVAL AND INSTALLATION .
6. Install the flexplate. Refer to FLEXPLATE, REMOVAL AND INSTALLATION .
7. Remove the engine from the maintenance stand, install the transmission to the engine and install the powertrain in the vehicle. Refer to REMOVAL AND INSTALLATION .