Purchase a belt one size smaller than the size you measured. The actual belt will have tension on it, whereas the string doesn't. For example, if you measured 80 inches, purchase a belt that is 79 1/2 inches.

Are there different size serpentine belts?

Deciphering the numbers on a serpentine belt is not difficult. As with v-belts, width and length are the two parameters. Most OE replacement serpentine belts are 4 to 6 rib belts and the length is referred to in inches and/or millimeters.

Are serpentine belts Universal?

Today, there's one belt to run them all—well, for the majority of vehicles. It's called the serpentine belt. Some rides may have an additional belt to run select accessories, but the serpentine does the bulk of the work.

Can I use a smaller serpentine belt?

Belts can be tricky, so we usually recommend buying two or three different slightly shorter belts so that you can test fit each one. Most vehicles have a spring tensioner that puts tension on the serpentine belt.

Is there a difference in serpentine belts?

Compared to standard smaller belts and fan belts, serpentine belts are made to be stronger, more compact, easier to install, and more efficient. Serpentine belts are also cheaper and longer-lasting than the alternatives. Transmit power to essential automotive components.

How to Measure for a Custom Serpentine Fan Belt Length

18 related questions found

What size serpentine belt do I need?

Purchase a belt one size smaller than the size you measured. The actual belt will have tension on it, whereas the string doesn't. For example, if you measured 80 inches, purchase a belt that is 79 1/2 inches.

Is a multi V-belt the same as a serpentine belt?

Serpentine Belts: The Modern Standard

With smaller engine bays and tighter accessory packaging becoming the new standard, manufacturers have largely moved on from multiple V-belts to serpentine accessory belts. ... Serpentine belts are also much wider and thicker than their V-belt counterparts.

Does a serpentine belt stretch?

Serpentine belts stretch with age and use; as time goes on, the rubber becomes dryer and less pliable making cracking more prevalent. However, cracking can also be caused by a defective tensioner. ... If a belt starts slipping, the tensioner should always be checked to see if it is functioning properly.

Can I replace a serpentine belt myself?

You can replace a serpentine belt with ordinary hand tools. But we don't recommend it. The spaces are often tight and the belt-driven devices difficult to reach. ... The belt placement tool allowed us to remove and properly place the new belt without reaching down into the pulley area.

How long can a car run without a serpentine belt?

How long will my car run with a broken serpentine belt? There are a few variables involved in the answer, but it should be able to run between 20 to 90 minutes. If it is a hot summer day, your engine can overheat very quickly without the coolant being pumped through the radiator.

How do you know when to replace the serpentine belt?

The easiest way to know that a new serpentine belt is needed is if you hear it squealing while the engine is running. A heavy rainstorm might cause a bit of squealing, but if there are any fluid leaks, it's time to replace it right away.

What size serpentine belt do I need to bypass AC compressor?

But to anyone else who needs to bypass ac pulley for same reason the belt size is 54 1/2 inch.

Can you cut a rib off a serpentine belt?

Yes. Go ahead and cut that rib. It's quite easy with a sharp knife.

How do you read a serpentine belt code?

EXAMPLE: 6PK1003 » 6 - This indicates the number of ribs on the belt; therefore, this is a 6-rib belt. » PK – The “P” indicates a metric designation, and the “K” indicates the belt is automotive per SAE J1459. » 1003 - This is the effective length of the belt expressed in millimeters.

How do you determine belt size between two pulleys?

How to calculate a belt length?

1. First, determine the diameter of the larger pulley. Measure the diameter of the larger pulley.
2. Next, determine the diameter of the smaller pulley. Measure the diameter of the smaller pully.
3. Next, measure the distance between pulleys. ...
4. Finally, calculate the belt length.

How Do You measure V pulley?

Place your pulley face down on a flat surface, then put your ruler or caliper on top, measure from outside edge to outside edge across the circle of the pulley. Check carefully to make sure you are measuring across the center.

Are V belts measured inside or outside?

Inside Belt Lengths: The inside length is measured with flat pulleys or a tape measure. As with the outside length, the inside length varies with the manufacturer. This length should not be used. 3.

What is another name for serpentine belt?

The serpentine belt goes by a couple of different names: accessory belt and drive belt. The belt is long and snakes through several pulleys.

What is the main advantage of using serpentine belts over V-belts?

Advantages. It is more efficient than the older multiple belt system and may consume less space in the engine compartment. By using a single, wider belt instead of multiple, thinner belts, the belt may be put under increased tension without stretching.

What is a multi V-belt?

A multi V-belt consists essentially of: A + C) Synthetic rubber, sometimes fiber-reinforced. B) Polyester tension member. Design and function. Thanks to its flat design with multiple adjacent ribs, the multi V-belt offers a large frictional surface area for power transmission within a very small space.

Should you replace tensioner with serpentine belt?

There is no recommended timeframe in which to replace your tensioner, especially as the belt itself usually needs replacing before the tensioner does. However, you should inspect your tensioner each time you service your car to monitor its condition and replace it if necessary.

How do you diagnose a bad serpentine belt?

Bad Serpentine Belts Give Off Signs

Look for fraying, notches, missing chunks, too much slack on the belt, and misalignment on the pulleys. Other visual signs of serpentine belt issues include: Cracking. Abrasions.

What are the symptoms of a serpentine belt going bad?

Symptoms of a Bad or Failing Serpentine/Drive Belt

• Squealing noise from the front of the vehicle. If you notice a squealing noise coming from the front of your vehicle, it could be from the serpentine belt. ...
• Power steering and AC not working. ...
• Engine overheating. ...
• Cracks and wear on the belt.