How to Fix Racing Go-Kart Belt Wear Problems
Heard the belt squeaking on your go-kart? It’s annoying and a pain for sure. It may occur if the tensioner is loose. There’s a possibility of an unusual problem with the drive belt tensioner pulley.
A quick tip: Resize and replace go-kart belts that wear out or align the pulleys. There are a few basic steps to diagnose and fix your go-kart torque converter problems. Read on to know the basics.
Causes of Belt Wear Problems
A worn belt will often squeal because it cannot handle the tension. If it squeals even if it doesn’t seem worn, it’s definitely not functioning as intended. In case of shaking, rattling noise, and other vibrations, this indicates an idler pulley or belt slippage.
A bad pulley is a much more expensive problem. You’ll hear a problem either way. The damage becomes apparent when the wear has become severe, as it does for visible wear.
Installation of Wrong Belt Size
Your go-kart will experience unique problems if the torque converter belt is incorrectly sized due to a short or long belt. Oversized belts reduce drive efficiency and hinder the ability to quickly move off the line due to additional slack.
There is a lack of tension on a belt that is too long, resulting in slipping. As a result, the belt will wear prematurely and eventually fail.
You’ll have excessive friction, and the belt will prematurely degrade if it’s too short. As a result of this, you may also damage the pulley system in addition to the belt.
In any case, you’ll want to make sure your torque converter belt fits properly.
Solution:
Correctly sizing a belt is a straightforward process. You should use the center-to-center distance on your torque converter and the pulley size on your belt to measure your go-kart belt.
Following that, you can look up these sizes in the belt size chart for go-karts. By simply referring to the corresponding values for the belt, you can replace your old one.
Malfunctioning torque converter
Despite their simplicity, torque converters still have several parts that can fail and wear belts. You should regularly check and replace your torque converter and belt so that you notice any malfunctions.
Several common parts that could malfunction, leading to premature belt wear, include:
- Driver Pulley
- Malfunctioning jackshaft sprocket
- Stuck brake
- Binding axle
- Binding or stuck bearings
Solution:
The only way to help your go-kart run optimally is to locate the faulty part. Replacing the malfunctioning part and making sure it’s working correctly should be your next step.
There may be situations where the torque converter is faulty or malfunctioning. You may have to replace the components if you cannot locate the problem or no longer repair them.
You may even need a new torque converter. Fortunately, these are inexpensive.
Misaligned driver and driven pulleys
Most likely, you have misaligned pulleys if you notice uneven drive belt wear or fraying edges. There is a belt between the driven and driving pulleys of a go-kart’s torque converter.
The belt needs to sit perfectly on the tracks of the driver clutch pulley; otherwise, the pulley’s pressure will be unevenly distributed, particularly on asymmetrical pulleys. You will experience premature wear and function loss if this happens.
Solution:
One way to make sure that pulleys are aligned is to run a straight edge along with each one or use a laser level to make sure they are parallel. Make sure you reference each pulley’s center point.
Overloaded torque converter
Weight capabilities of torque converters vary depending on the type. A belt and pulley system that exceeds its range may also suffer excessive wear.
This will also prematurely wear out the belt on your torque converter since the entire time it is slipping. It will also occur if you continuously drive uphill with a heavy load at slow speeds. The throttle cable might cause issues with the converter if it isn’t adjusted properly.
Solution:
Be sure your torque converter can handle your driver weight and usage pattern to avoid this problem. It is also vital to drive your go-kart usually, without excessively slowing down.
If your go-kart has a torque converter and belt wear is excessive due to overloading, a drive clutch will be necessary.
Incorrect installation of an asymmetrical belt
The wrong belt size can also cause belt wear problems. Belts such as CAT99 and 30 Series benefit from an asymmetrical design to fit the drivers and driven pulleys of transmissions.
A slightly angled output shaft, designed to align with the driven/driving pulley, has one side flat and one side angled. Unless the tube’s flat side is facing the engine, it will instantly decrease efficiency and result in improper operation.
Solution:
An asymmetrical torque converter and asymmetrical belt will result in excessive belt wear. For the same reason, asymmetrical belts work well with symmetrical torque converters.
Installing a belt must be done according to the manufacturer’s instructions. Be sure to install the correct belt type.
Which go-kart belt size is best for your go-kart?
The correct size of the go-kart belt depends on making accurate measurements. Identify the series type and measure the diameter of the outer diameter on the shaft.
You need to measure the center distance between the engine crankshaft and the secondary shaft.
To determine the correct belt part number from the chart, measure the outer diameter of the driven pulley and the center distance.
Choosing a new belt with a larger circumference will provide the best wear and prevent machine creep when idled when your machine’s center distance falls between the two settings.
FAQs
How do I know what size torque converter belt I need?
To measure the pulley, hold the measuring tape up to the outer plate. Count the plate from one side to the other. With a standard torque converter, you will have a diameter of 6 inches, 7 inches, 7.5 inches, or 8.5 inches.
Why do torque converters burn belts?
Torque converters can handle a specific range of weights. The belt on your torque converter will also prematurely burn out if you drive uphill at low speeds, especially with a heavy load, since it is slipping all the time.
How Loose Should a Go-Kart belt be?
Set the belt firmly on the driven pulley (driven flange). Remove the cover from the driver pulley and pull the belt past the crankshaft to have a space of approximately 1/8″ to 3/16″.
What size chain goes on a 212cc Predator engine?
This Part # 209760 Predator 212cc Centrifugal Clutch will restore your ride to its original level of performance and reliability. An eight tooth design, #35 chain, and 19mm hole complete the 0.75″ bore design.