How to Adjust a Go Kart Torque Converter

  • By: Kevinsmak
  • Date: July 20, 2022
  • Time to read: 6 min.
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To adjust a go-kart torque converter:

  • Remove the Nut, Cam, Snap Ring, and Spring
  • Carefully adjust the spring to your liking
  • Reassemble the Snap Ring, the nut, Cam, and Spring
  • Preload the Spring and Assemble the Snap Ring and Nut

If you’re a go-kart racer, you know that having a properly adjusted torque converter is essential to your success on the track.

In this blog post, I will walk you through the steps necessary to adjust your torque converter for optimal performance. Keep reading to learn more.

How to Adjust a Go Kart Torque Converter

Adjusting the torque converter on your go-kart is a relatively simple process, but it must be done with care and precision.

Follow these steps to ensure that your torque converter is properly adjusted:

Remove the Nut, Cam, Snap Ring, and Spring

This will give you access to the spring, which you will need to adjust. To do this:

First, remove the snap ring and nut that are attached to the fixed cam. You may now continue to remove the fixed cam and the spring from the torque converter after removing the snap ring and the nut.

Leave everything else exactly how it is. Then, you won’t have to take the chain or belt off to change your torque converter.

Adjust the Spring

You need to get access to the spring to modify your torque converter. The most difficult part will be removing the snap ring and the nut attached to the fixed cam.

After removing those, remove the fixed cam and spring from the torque converter. To increase preload, wind the spring clockwise until it is tight.

If you need to decrease preload, wind the spring counterclockwise. The amount of preload will determine how much power is transferred from the engine to the wheels.

Reassemble the Snap Ring, Nut, Cam, and Spring

After you’ve adjusted the spring to your desired preload level, it’s time to reassemble everything. First, put the snap ring back in place.

Next, screw on the nut, making sure that it’s tight. Finally, put the cam back in its rightful place.

Preload the Spring and Assemble the Snap Ring and Nut

Now it’s time to preload the spring. First, put the snap ring through the hole in the torque converter body.

Next, take the flat end of a screwdriver and push down on the snap ring while you turn the nut clockwise. As you turn the nut, the snap ring will be pulled up and preloaded against the boss of the torque converter body.

Stop turning the nut when there is a gap of about 0.38 inches (or one centimeter) between the bottom of the torque converter body and the top of the snap ring. At this point, the snap ring is preloaded, and you may now continue to tighten the nut until it is snug.

How to Identify if Your Torque Converter Needs Adjusting

If your go-kart is experiencing any of the following symptoms, it’s a good indication that your torque converter needs to be adjusted:

The Engine Revs Up, but the Go-Kart Doesn’t Move

If your engine is revving up, but your go-kart isn’t moving, this is a sure sign that something is wrong with your torque converter. In this situation, it’s likely that the spring inside the torque converter has come loose and needs to be adjusted.

The Go-Kart Moves Forward Even When You Let Off the Gas

This is another symptom that points to an issue with the torque converter. If your go-kart moves forward even when you let off the gas, it means that the spring inside the torque converter is too tight and needs to be loosened.

The Go-Kart Doesn’t Move Forward Even When You Step on the Gas

Conversely, if your go-kart isn’t moving forward even when you step on the gas, it’s an indication that the spring inside the torque converter is too loose and needs to be tightened.

The Go-Kart Moves Forward but Then Stops Abruptly

If your go-kart moves forward but then stops abruptly, it’s a sign that the spring inside the torque converter is too loose.

In this case, you’ll need to tighten the spring.

The Go-Kart Jerks Forward or Stalls

If your go-kart jerks forward or stalls, it’s an indication that the spring inside the torque converter is too tight. You’ll need to loosen the spring in this case.

Factors that Affect Go-Kart Torque Converter Adjustment

There are a few factors that can affect the adjustment of your go-kart torque converter. These include:

The Type of Engine You Have

There are different types of engines that can be used on go-karts, including two-stroke and four-stroke engines. The type of engine you have will affect the amount of torque that is required to turn the wheels.

The Weight of the Go-Kart

The weight of your go-kart will also affect the amount of torque that is required to turn the wheels. Heavier go-karts will require more torque than lighter ones.

The Type of Tires You Have

The type of tires you have on your go-kart will also affect the amount of torque that is required to turn the wheels. Softer tires will require more torque than harder ones.

Off-road go-karts will typically have rough tires than on-road go-karts.

The Surface You’re Driving On

The surface you’re driving on will also affect the amount of torque that is required to turn the wheels. Softer surfaces will require more torque than harder ones.

The roughness of the surface will also affect the amount of torque that is required. Rougher surfaces will require more torque than smoother ones.

How to Adjust a Go Kart Torque Converter | FAQs

Can You Adjust a Go-Kart Torque Converter?

Yes, you can adjust a go-kart torque converter. To do this, you’ll need to preload the spring and then assemble the snap ring and nut.

After that, you can adjust the spring tension by turning the nut.

What Are the Signs That Your Torque Converter Needs Adjusting?

There are a few signs that your torque converter needs adjusting. These include: revving up but not moving, moving forward even when you let off the gas, not moving forward even when you step on the gas, moving forward but then stopping abruptly, jerking forward, or stalling.

What Are Some Common Problems with Torque Converters?

Some common problems with torque converters include: springs coming loose, springs that are too tight or too loose, and damaged snap rings.

How Do You Fix a Torque Converter?

To fix a torque converter, you’ll need to adjust the spring tension. This can be done by preloading the spring and then tightening or loosening the nut.

You may also need to replace the snap ring if it’s damaged.

Final Thoughts

Adjusting a go-kart torque converter is not difficult, but there are a few things you need to keep in mind. Make sure to preload the spring and then assemble the snap ring and nut.

Also, be aware of the signs that your torque converter needs adjusting, such as revving up but not moving, moving forward even when you let off the gas, or not moving forward even when you step on the gas.

I hope this article was helpful and that you now know how to adjust a go-kart torque converter. Thanks for reading.


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