How to torque dapner puller in car

## How to Torque a Damper Pulley on a Car

### Introduction

A damper pulley is a critical component in a car’s engine, as it helps to reduce vibrations and noise caused by the crankshaft’s rotation. Over time, the damper pulley may become loose or worn, which can lead to a variety of problems, including reduced engine performance and increased noise. In this guide, we will provide detailed instructions on how to properly torque a damper pulley on a car.

### Materials and Tools Required

Before you begin, you will need to gather the following materials and tools:

– Torque wrench
– Damper pulley wrench
– Wrench or socket set
– Thread locker (optional)

### Safety Precautions

Before performing any work on your car, it is important to take the following safety precautions:

– Park your car on a level surface and engage the parking brake.
– Allow the engine to cool down before starting any work.
– Disconnect the negative terminal of the battery.
– Wear appropriate safety gear, including gloves and eye protection.

### Step-by-Step Instructions

1. Remove the Serpentine Belt

– Locate the serpentine belt tensioner.
– Use a wrench or socket to loosen the tensioner pulley.
– Remove the serpentine belt from the pulley.

2. Remove the Damper Pulley Bolt

– Use a damper pulley wrench to hold the pulley in place.
– Use a socket wrench to loosen and remove the damper pulley bolt.

3. Inspect the Damper Pulley

– Once the bolt is removed, carefully remove the damper pulley from the crankshaft.
– Inspect the pulley for any damage or wear.
– If the pulley is damaged or worn, it should be replaced.

4. Apply Thread Locker (Optional)

– If desired, apply a small amount of thread locker to the threads of the damper pulley bolt.
– This will help to prevent the bolt from loosening over time.

5. Install the Damper Pulley

– Place the damper pulley on the crankshaft and hand-tighten the bolt.
– Use the damper pulley wrench to hold the pulley in place.

6. Torque the Damper Pulley Bolt

– Use a torque wrench to tighten the damper pulley bolt to the specified torque.
– Refer to your car’s service manual for the correct torque specifications.
– Most damper pulleys require a torque of around 120-150 ft-lbs.

7. Reinstall the Serpentine Belt

– Route the serpentine belt over the pulleys, starting with the crankshaft pulley.
– Use a wrench or socket to tighten the tensioner pulley.
– Ensure that the serpentine belt is properly tensioned.

8. Reconnect the Battery

– Reconnect the negative terminal of the battery.

### Troubleshooting

If you encounter any problems while torquing the damper pulley, here are some troubleshooting tips:

– The bolt is seized: If the damper pulley bolt is seized, you may need to use a penetrating lubricant to loosen it.
– The pulley is slipping: If the damper pulley slips when you try to torque the bolt, you may need to use a pulley holder or locking pliers to hold it in place.
– The torque wrench is not calibrated: If you are unsure whether your torque wrench is calibrated correctly, it is a good idea to have it checked by a professional.

### Conclusion

By following these instructions, you can safely and effectively torque a damper pulley on a car. This will help to ensure that the pulley is properly secured and that your car runs smoothly and quietly. If you have any questions or concerns, it is always a good idea to consult with a qualified mechanic.