Drive Belt: Service and Repair

REMOVAL PROCEDURE





The supercharged 3800 engine uses two drive belts. The outer belt drives the supercharger. The inner belt drives the generator, power steering pump, coolant pump and air conditioning compressor. All driven accessories are rigidly mounted to the engine. Drive belt tension is maintained by the spring loaded belt tensioners. Each belt has its own tensioner.

A belt squeak when the engine is started or stopped is normal and has no effect on belt durability. The drive belt tensioner can control belt tension over a broad range of belt lengths due to stretching; however, there are limits to the tensioners ability to compensate. Using the tensioner outside of its operating range can result in poor tension control and/or damage to the tensioner. The belt should be replaced when this condition occurs.

Important: Ensure that the wood block extends past the width of the oil pan in order to avoid damage.

1. Use a jack with a block of wood on the jack under the oil pan in order to support the engine.
2. Remove the torque axis engine mount bolt at the engine mounting bracket.
3. Disconnect the electrical connector from the crank sensor.
4. Remove the engine mounting bracket lower stud. Lower the engine in order to allow the stud to clear the frame rail.





5. Raise the engine. Reinstall the bolt into the torque axis mount.





6. Lower the engine in order to remove the spacer.





7. Remove the drive belt.





8. Remove the supercharger belt.

INSTALLATION PROCEDURE





1. Install the drive belt.





2. Install the supercharger belt.





3. Install the spacer.





4. Remove the bolt from the torque axis mount. Lower the engine.
5. Install the electrical connector to the crank sensor.





6. Install the mounting bracket stud.
7. Raise the engine.

Notice: Refer to Fastener Notice in Service Precautions.





8. Install the torque axis mount bolt.
^ Tighten the torque axis mount bolt to 87 Nm (52 ft. lbs.).