How To Diagnose And Fix A Wobbly Crankshaft Pulley In Your Audi A4 by Houston Mechanics?

Generally, the crankshaft pulley is an important component of the engine which is located at the front end of the crankshaft. Thus, the main function of the crankshaft pulley in your Audi A4 is to move the auxiliary elements of the engine such as the steering pump, alternator, air-conditioning compressor, and the V-belt.

Moreover, the crankshaft pulley is also known as a crankshaft sheave or harmonic balance wheel that connects directly to the crankshaft. It converts the linear movement of the pistons into a rotation motion and connects other components through accessory belts. Due to numerous reasons, the crankshaft pulley of the Audi is wobbling and loses its efficiency poorly.

What do you mean by crankshaft pulley?

In general, the crankshaft pulley of the Audi is driven by several components of the engine and the alternator. However, this component is found near the front of the crankshaft in the car. Once the rotational energy is generated from the crankshaft, then it transfers to the crank pulley and power up other components of the car.

Thus, the main function of the pulley is to dampen the vibrations transmitted through the engine and rotate the belts to control the engine and other related components. For preventing the belt from sliding throughout the rotations, the crankshaft pulley has ribbing on it. When the pulley is failed, you have to consult a professional mechanic for proper inspection and repair.

Causes behind the wobble crankshaft pulley

Due to numerous reasons, the crankshaft pulley of the Audi A4 is wobbling. The following points define the causes more briefly.

Crank belt tighten issues

To avoid the wobble in the crankshaft pulley, the crank bolts need to be properly tightened. If they are loosened, then the crank keyway is destroyed entirely, and wobble the crankshaft pulley in your vehicle.

Breakdown of assembly parts

Basically, the crankshaft pulley of the Audi is made up of two components that are connected by a flexible layer. Among the two of them, the heavy metal components are fastened to the cranks and hold the central section. Thus, the rotational mass is reducing the intensity of the engine’s pulses. When any of the components is failed, it needs immediate replacement.

At high RPMs

When the engine RPM of the car is increased, you can hear a squeaking sound from the crankshaft pulley that can wobble. Ignoring the problem for longer can fracture the center in the pulley and cause severe engine damage.

Poorly made pulley

Apart from the other causes, the crankshaft pulley also wobbles from the poorly made pulley. In this case, you will find that the input rotational speed of the car exceeds the output speed. As a result, you will notice issues in the power steering, alternator, and air conditioning as well as cause catastrophic engine damage.

Way to fix the wobble crankshaft pulley

Tightening the crankshaft pulley is the best way to run the crankshaft smoothly. Through the following ways, you can fix the wobble crankshaft pulley in your Audi A4.

• Double-check all the fasteners
• Replace the crankshaft pulley belts individually
• Remove the dirt, sand, grease, or other substances in the belt.

Way to replace a crankshaft pulley

By consulting with a professional mechanic, you can diagnose and fix the wobble crankshaft pulley in your Audi A4. During the process, you have to unscrew the central bolt and remove the failed crankshaft pulley from the engine. Through the following ways, you can fix/replace the crankshaft pulley in your Audi.

• First, you have to disconnect the battery.
• Remove the drive belt and the old pulley.
• Install the new crankshaft pulley.
• In the final phase, torque the crankshaft pulley.

Conclusion

Moreover, the wobbling crankshaft pulley is the earlier indication of serious damage to the car. Due to these reasons, you have to perform a routine inspection of the crankshaft pulley to prevent major breakdowns. Neglecting the wobble crankshaft pulley in your Audi will damage the engine, belts, and the crankshaft eventually.

If you found that the crankshaft pulley of your Audi A4 is wobbling while driving on the roads of Houston, then consult with a reputed local mechanic to diagnose the causes behind the problem and fix it as soon as possible.

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