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crankshaft harmonic balancer

Hello. To understand what is going on, lets discuss these two components and how they work. Harmonic balancers are essentially vibration dampeners in the engine that counteract the torque caused vibrations coming from the crankshaft. Every time the combustion cycle...

The fancy name for the crankshaft pulley is the Harmonic Balancer. It is made in three pieces, the hub is attached to the outer ring via a thin band of rubber that is held in with adhesive. when is fails,...

There should be no appreciable run-out on the crank pulley and if a physical inspection of the harmonic balancer reveals damage such as a broken, cracked or separated rubber bond, the balancer should be replaced. If you do have a...

If the harmonic balancer is known to be defective, the only prudent course is to not operate the engine until the balancer is replaced. There are at least two risks: 1) the balancer could completely separate causing further damage; and...

Hi there - this task requires a few specialized tools in order to do the job correctly The bolt holding the crankshaft harmonic balancer (https://www.yourmechanic.com/question/how-do-i-change-an-external-harmonic-balancer-by-randy-p) on requires approximately 300 lb ft of torque to remove, and reinstall. The correct tools...

The pulleys may not be lined up in the same plane. Look at the harmonic balancer and crank pulley in particular. The rubber bond in the balancer may have failed thus causing misalignment of the pulleys relative to the other...

Hello - No, welding the harmonic balancer to the crankshaft is not a good idea for at least 2 reasons. Welding the balancer hub to the crankshaft will damage or reverse the benefits of heat-treatment to the crankshaft itself -...

Before you condemn the motor for having rod or crankshaft knock you should have the crankshaft harmonic balancer checked for a broken one. If it is bad then it can cause a loud knocking noise. Replace it if it is...

Hello - removal of the harmonic balancer bolt is counter-clockwise. Be sure to use a flywheel block or pin to prevent counter-clockwise engine rotation, which could cause engine damage. Good luck!

The Harmonic balancer has a steel center hub and outer ring that are bonded to a rubber ring that separates them. When the car is very old, the adhesive in the balancer dries up and the outer ring might start...

The short answer is no. The harmonic balancer is manufactured in three pieces: The hub, a rubber sleeve, and the outer sleeve. They are held together with adhesive and the reason your's fell apart is because the rubber has gotten...

The only way to determine what is broken, and who is potentially responsible or at fault, is to physically examine the engine. Speculation in the absence of a physical, on site examination is not going to help you. If you...

There should be no appreciable run-out on the crank pulley and if a physical inspection of the balancer reveals damage, it should be replaced. If you do have a failed balancer, don't operate the engine because the imbalance and/or torsional...

If you are using the marks on the harmonic balancer to find TDC, occasionally the balancer will have shifted (the rubber bond breaks) causing the timing mark to be some degrees off. Consequently, the crankshaft is not really at TDC...

If your car has a substantial amount of mileage, it's not unusual for a serpentine belt to break and to need a new tensioner (the bearing on the tensioner wears out). If the harmonic balancer/crankshaft pulley is out of position...

The harmonic balancer should not wobble at all. The heavy bolt that holds the balancer to the crankshaft snout is quite tight. Presumably the balancer bolt was torqued to the Factory Service Manual value, and so you cannot safely tighten...

Hi there - this engine is allegedly NOT an interference engine. Translation - if the timing belt breaks, or isn't present, it should not be possible for the valves to contact the pistons, and cause a lack of rotation as...

Hi there. The following steps are to check for top dead center on your engine. Remove the left valve cover on the engine rotate the crankshaft until the key way is facing up Check the camshaft on the left that...

Engine and transmission mounts are replaced on a mobile basis by certified mechanics dispatched by YourMechanic (https://www.yourmechanic.com). The service to request is motor/transmission mount replacement (https://www.yourmechanic.com/services/engine-mount-replacement). Harmonic balancers are relatively long-lived but there are a lot of variables that affect...

Hello there, many faults will cause the drive belt on your 2007 Dodge Durango to fall off. In many cases the belt comes off from either a seized pulley, or a pulley that is walking. If your harmonic balancer pulley...