What does the crankshaft pulley do?

What does the crankshaft pulley do?

The crankshaft pulley (harmonic balancer) is located at the crankshaft's end. Its function is to rotate the drive belts that power the engine's accessories (alternator, air conditioning compressor, etc.). The belt passes over two sets of metal teeth on the pulleys, which prevents them from spinning too fast or slow.

This image shows one way to identify if this part is needed for your vehicle: If the vibration from the engine when you step on the gas pedal is high, then this part is required for maintenance to prevent damage to the engine.

Here are some terms that may be used when referring to parts such as these:

Belt drives replace idler and driving gears on an internal-combustion engine's transmission system with a single unit that contains both functions. This reduces the number of components necessary to provide automatic transmissions with accessory drive capability. Although originally designed for use with Ford vehicles, the system is now available for many other makes and models as well.

In addition to powering the accessories, the belt also acts as a filter for oil that has been contaminated with dust from the road. As the engine turns the belt, it moves through this oil, causing any particles in the oil to become suspended in the fluid.

Is a harmonic balancer the same as a crankshaft pulley?

Is a crankshaft pulley the same as a harmonic balancer? - Quora. No! They are not the same thing. The harmonic balancer glides onto the front of the crankshaft, which has a keyway to protect it from slipping, and is held in place by a bolt and a broad washer. The crankshaft pulley is attached to the end of the shaft by a belt or chain and has teeth that mesh with an identical pulley on a motor armature or generator housing.

When you replace your vehicle's harmonic balancer, be sure to use a brand new one. Old ones can leak fluid and cause problems with your engine's computer system. Have your car inspected by a reputable auto repair shop before you install a new one. They will be able to tell you if there are any problems with its design that would affect its ability to do its job.

Harmonic balancers were used on most engines until about 1998 when they were replaced with oil-filled balance shafts. Balance shafts reduce vibration while keeping engine output nearly unchanged. They are now found on many luxury cars and trucks, such as Mercedes-Benz and BMW.

A crankshaft pulley is still used today on some older vehicles in place of the harmonic balancer to reduce cost. However, they only cover the front half of the crankshaft so they cannot prevent vibrations from spreading to other parts of the shaft.

Which pulley is the idler pulley?

An idler pulley is one of several pulleys in a set that drive a vehicle's belt system. The idler pulley controls the belts that link to the crankshaft and drive a variety of engine accessories such as the alternator, steering pump, and air-conditioning compressor. It also acts as a clutch so that the driver can start your car without affecting the accessory drive.

The idler pulley is called that because it only functions to control the speed at which the belt drives the other components of the engine's transmission system. It does not turn like the other pulleys in the system; instead it simply guides the belt along its path.

Idler pulleys are usually made from steel or aluminum, but some high-end models are now being made from synthetic materials for improved performance. They typically range in size from half way down a standard automobile belt up to about 1 3/4 inches wide with speeds of around 500 to 3000 rpm. Larger or smaller sizes may be used depending on the application.

A belt will not function properly if it is too tight or too loose, so each time you replace your idler pulley, make sure to put it in the correct position. If you install the new unit before testing it, there is no way to know if it is in the right place until you get your engine running again.

How does a drive pulley work?

A drive pulley is a pulley that is connected to a power source that, when activated, exerts force on a belt (or cable or chain). The belt is attached to the item being driven, which spins. This is a method of transmitting power. As the belt passes around the drive pulley, the force from the motor causes the belt to stretch and create tension.

There are two types of drive pulleys: cone-type and disk-type. The cone-type pulley has a series of holes drilled into its surface, while the disk-type pulley has a number of grooves cut into its surface. Both types of drive pulleys will still function properly if used with a belt that is not long enough or too narrow. The length of the belt must be such that when it is completely wrapped around the drive pulley, there is still some slack in the belt for it to move smoothly.

Cone-type drive pulleys are commonly used with motors that use AC current because they are more efficient than disk-type drive pulleys. Cones have several holes drilled into their surface, which allow air to flow through them and reduce the pressure against the belt as it moves past the cones. This reduces friction between the belt and the cones and also reduces noise produced by the movement of the belt.

About Article Author

Maria Mccluer

Maria Mccluer is a crafty, coupon-clipping cat who loves to find ways to save money. She's the kind of person who has an entire notebook dedicated to coupons, and she's constantly coming up with new ways to use them. She also enjoys reading about other people's experiences with DIY projects - from fixing up old furniture to making their own cleaners.

Disclaimer

GrowTown.org is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Related posts