5.3 Vortec Serpentine Belt Size

What size serpentine belt do I need?

With the measurement made, subtract 5/8-inch (16mm) from the length to compensate for the position of the loaded tensioner and that's your belt length. To convert the inch measurement to millimeters, just multiply the length in inches by 25.4. As an example, if the belt measures 66 inches: 66 x 25.4 = 1676mm. via

How do I know my drive belt size? (video)


Does serpentine belt size matter?

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. via

Do serpentine belts fit all cars?

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. via

How do you find the belt number?

Automotive belts start with either 4L (12.5mm wide) or 3L (9.5mm). The number following it is the outside length of the belt in tenths of inches. The inside length of the belt is typically 2" less for a 4L belt, and 1-1/2" less for a 3L belt. An example would be 4L460, which would be 46" long outside, 44" inside. via

Are all serpentine belts the same?

Every car engine is different, even engines from the same auto manufacturer. That means the serpentine belt will snake around the pulleys in a different order too. Newer cars might have a plastic covering over the engine that will need to be removed in order for you to see what's going on with the belt. via

How do you size a pulley belt?

  • First, determine the diameter of the larger pulley. Measure the diameter of the larger pulley.
  • Next, determine the diameter of the smaller pulley. Measure the diameter of the smaller pully.
  • Next, measure the distance between pulleys.
  • Finally, calculate the belt length.
  • via

    How do you measure a motor belt?

    Use a cloth measuring tape (not a steel one) and wrap it around the outside of the belt. You also use a thin string to take this measurement and place it on a steel tape to get the correct length. Next, for “A” Belts (1/2” width) subtract two-inches from the outside measurement to select the correct V-belt. via

    What are V-belt sizes?

    V-Belt Dimensions

    V-Belt Type Top Width Height
    A 1/2″ 5/16″
    B 5/8″ 13/32″
    3VX 3/8″ 21/64″
    5VX 5/8″ 35/64″


    Can a serpentine belt be to tight?

    If the belt is too tight, it will cause excessive side loads and overheat the bearings. This in turn causes noise, decreased output and even the seizing of the alternator. If the belt is too loose, it will cause the alternator to slip. This slipping can cause the alternator and the battery to work harder. via

    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. via

    How can I make my drive belt smaller? (video)


    Can I drive without a serpentine belt?

    Under no circumstances can you drive a vehicle without a serpentine belt because the serpentine belt serves the important function of delivering antifreeze to important parts of the engine. The serpentine belt drives the water pump, and without it, there is insufficient coolant flow to maintain the engine temperature. via

    How long can a car run without serpentine belt?

    There are a couple of factors influencing the answer to this question, but on average, your car should be able to run between 20-90 minutes with a broken serpentine belt. The engine will overheat faster without a functioning cooling system on a hot day, so your driving window is less. via

    How do you read a serpentine belt number?

    The first one, and the more recognizable one, is the manufacturer's part number, which is referenced when ordering the part. The second, and lesser known one, is a global industry standard number that indicates the size of the belt. via

    What size is a 4l belt?

    400 Flat and Neoflex Belts.
    V-Belts - Fractional Horsepower (FHP) Section 4L - Size 1/2" (12.7mm) X 5/16" (7.9mm)

    V-Belt No. Outside Length Inches
    4L1000 100


    What does V-belt mean?

    A V-belt is the rubber belt that drives the alternator, air conditioning compressor, power steering pump and waterpump. It's called a V-belt because of its “V” shaped cross-section. All belts wear out over time and need to be replaced. via

    What belt do I need for my car?

    There are two belts you need to be familiar with when talking about car maintenance — the serpentine belt and the timing belt. The serpentine belt winds through your engine and carries power to several key components, including the alternator, air conditioning, and power steering pump. via

    What are 3 types of drive belts?

    There are three basic types of power transmission belting: flat, V, and synchronous. via

    Does the serpentine belt affect performance?

    Bad Serpentine Belts Cause Vehicle Performance Issues

    If your serpentine belt is failing, you may notice performance issues with your vehicle. The vehicle may frequently overheat. Your air conditioning or power steering may fail to work or not work properly. via

    How do you choose a pulley belt? (video)


    Does a smaller drive pulley increase speed?

    Pulleys of Different or Same Size

    If a smaller pulley turns a larger one, the larger one will turn slower, but with more power available at the shaft. If a bigger pulley turns a smaller one, the smaller one will turn much faster than the bigger one but with less power available at the shaft. via

    How do you find the diameter of a pulley?

    Step 4: To determine diameter of pulleys. Step 5: Standard pulley diameters: d = 280 mm and D = 450 mm (OR) d = 250 mm and D = 400 mm can be selected. For this problem, d = 280 mm and D = 450 mm is selected.
    Step 7:

    C min = 0.55 (D + d) + T
    C max = 2 (D + d) = 2 (450 + 280) 1460 mm


    What is my belt size in CM?

    Convert your belt size to centimeters as needed. Multiply the inch measurement by 2.54 to find your belt size in cm. Men's pant sizes are usually one size smaller than their belt size. For example, a 36-inch waist will correspond to a 38-inch belt size. via

    What are the different types of V belts?

    There are three common V belt types: Classical V-belt (classified by their dimensions from A to E), Narrow V series (ranked by their sizes 3V, 5V, and 8V), and light-duty Fractional Horsepower belt (classified by their dimensions 2L, 3L, 4L, 5L). via

    Are V belts the same size?

    It comes in many sizes (XPZ SPZ, XPA SPA, XPB SPB, XPC SPC, 10X, 13X, and 17X). Fractional Horsepower. This standard is used for V-belts designed for light-duty applications. It comes in four sizes (2L, 3L, 4L, and 5L). via

    What is a 3v belt?

    202 products. V-belts, sometimes called vee-belts, are a type of drive belt that have tapered sides that fit in pulleys with side guides. They transfer force from motors to pulleys to power a variety of parts including paddles, rollers, water pumps, compressors, and fans. via

    What is the difference between A and Ax belts?

    AX v belts are a "cogged" style belt that can interchange on the same pulleys as "A series" or "4L series" belts. The AX notched belts can generate higher horsepower ratings due to the raw edge construction, which grips the pulley much better. via

    How do I stretch my serpentine belt? (video)


    How do I know if my tensioner pulley is too tight? (video)


    Can a loose serpentine belt cause rough idle?

    So if you have searched for answers to the question, can a bad serpentine belt cause rough idle? The answer is yes. via

    How do I know if my serpentine belt is aligned? (video)


    Why does my serpentine belt keep slipping off?

    Slipping can be the result of a loss of belt tension (or a weak automatic tensioner) or pulley misalignment. When the belt slips off the track, the friction between the belt and accessory drive pulleys causes the belt to overheat. If you hear a high pitched squealing noise, it's probably time for a switch. via

    What if my belt is too long? (video)


    How do you cut a belt too long?

  • What you will need – ruler, screwdriver, paper knife.
  • Measure the excess leather.
  • Unscrew the buckle.
  • Remove buckle screw, belt loops and other parts.
  • Mark off the excess leather.
  • Cut away the excess leather part.
  • via

    What are toothed belts used for?

    A major use of toothed belts is as the timing belt used to drive the camshafts within an automobile or motorcycle engine. As toothed belts can deliver more power than a friction-drive belt, they are used for high-power transmissions. via

    Does the serpentine belt affect brakes?

    A: On most vehicles the serpentine belt runs the power steering pump, water pump, air conditioning compressor, and alternator. If the belt breaks, all of these components will not function. Power brakes commonly get their power from vacuum pressure from the engine or hydraulic pressure from the power steering pump. via

    What does a failing serpentine belt sound like?

    Think you might have a bad serpentine belt? A telltale sign is that the engine squealing comes from the front of the vehicle and that it persists. Belt squeaking is also especially pronounced when accelerating, on startup, and when making a U-turn. The noise is loud and sounds like a squeal, loud chirp, or squeak. via

    How hard is it to replace serpentine belt?

    Serpentine belt replacement is easy because today's automatic drive belt tensioners eliminate the need to loosen bolts or pry components into position for retensioning. Just rotate the tensioner, remove the old belt and install a new one. via

    How do I know if I need a new tensioner?

    Grinding or squeaking noise from the belts or tensioner

    The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. via

    How many miles do belt tensioners last?

    You should expect to replace your belt tensioner in the 40,000-70,000 mile range. It is also customary to swap more than one part simultaneously, usually a worn-out pulley from other systems and even the serpentine belt itself. via

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