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How To Fix A Wobbly Crankshaft Pulley

Crankshaft pulleys are an essential part of your engine and can be a major source of concern if they start to wobble. If the pulley becomes wobbly, it can cause decreased engine performance, increased emissions, and more. In this blog post, we will show you how to fix a wobbly crank shaft pulley in just a few easy steps. By following these tips, you can keep your engine running smoothly and avoid costly repairs down the road.

Identification of the Issue

In order to identify the issue with your crankcase pulley, you will need to inspect it for damage. If the pulley is damaged beyond repair, you will need to replace it. To do this, remove the engine cover and locate the pulley on the engine block. It should be attached by four bolts located around its circumference. Remove these bolts and gently pull the pulley off of the engine block. Check for any damage to the pulley, and if so, replace it as necessary.

Removal of the Wobbly Crankshaft Pulley

Symptoms: When the car is driven, the engine knocks and makes a wobbly sound.

The wobbly crankshaft pulley is the culprit most often causing this type of problem. This pulley is attached to the front of the crankshaft and helps it rotate. The pulley can become loose or warped, which causes it to wobble. This wobble can cause knocking and make the engine sound wobbly.

Cleaning and Lubrication of the Main Bearing Race

1. The first step in fixing a wobbly crankshaft pulley is to clean and lubricate the main bearing race. Use a degreaser and oil to clean the surface of the bearing race, then apply a light layer of grease.

2. Next, use a wrench to secure the pulley in place on the shaft. Using a torque wrench, tighten the pulley bolts until they are snug but do not over-tighten them.

3. Finally, lubricate the mating surfaces of the pulley and shaft with grease again before replacing the pulley nut.

Replacing the Wobbly Crankshaft Pulley

If your car has a wobbly crank shaft pulley, there is a good chance that the pulley itself is not the only issue. In many cases, the bearings that support the pulley may also be worn or need to be replaced. If you think your crank shaft pulley is causing your car’s wobbly behavior, here are some steps to take to replace it:

1. Remove the spark plugs and clean all of the fuel and oil off of the engine block.

2. Loosen the bolts that hold on the Pulley Cover Plate (1) and remove it.

3. Push down on either side of the Support Bearing Race (2) and pull it out from under the Pulley (3).

4. Remove the four bolts that hold on the Pulley Frame (4) and tilt it forward so you can access both sides of the Bearing Retainer Plate (5). Use a wrench to remove these bolts and then release the Bearing Retainer Plate.

5. Carefully pull out both Bearings (6) from their slots in the Frame and set them aside in a safe place. Make sure not to drop any Bearing balls into your engine!

6. Clean all of debris off of both sides ofthe New Bearing Balls (7). Make sure they are seated properly in their slots by gently pressing down on each one with a finger while turning it until it clicks into place. Replace both Bearings and


A wobbly crankshaft pulley can be a frustrating problem to fix, but it is relatively easy if you know what to do. Follow our simple steps and your crank will be back in working order in no time. If you have any other questions about how to fix a wobbly crankshaft pulley, don’t hesitate to ask us in the comments below or on our social media pages. We would love to help!