Understanding Stretch Shrink Belts

Understanding Stretch Shrink Belts

Andrew Markel uses an old school toy to describe how these belts work. This video is sponsored by Auto Value and Bumper to Bumper.

For some of our older viewers, you may remember a toy called Shrinky Dinks. This was a toy where you would color in on a plastic sheet, and then you would cut it out and put it in the oven and it would shrink. So something that was four inches went down to maybe two inches or the size of a key chain. This same technology is involved in stretch belts. If you see a belt that says stretch or stretchy on the side, or it’s indicated on the product sleeve that it is a stretch belt. Well, this belt, it typically doesn’t have a tensioner with no tension. How does it set that final tension? Well, it uses that same properties as shrink heatings. When the belt is run and gotten up to temperature, it actually conforms to the pulley and grooves to give the proper tension. So what does that mean to you, the technician?

Well, it’s using the correct installation method so you don’t damage the belt, and also making sure that the belt is not exposed to extreme conditions like heat before it’s installed on the vehicle. Also, these cannot be reused, and typically the only way to remove the belt is to cut it like that. By doing this, the belt is no longer able to fit on the vehicle. When you install a new one, well go through the procedures and use the tools. Some of the tools range from a zip tie to a very specific tool to pull the belt over the pulley and then have the engine run, so the belt conforms to the pulleys. I’m Andrew Markel. Thank you very much.

You May Also Like

The Vital Nature of Multi-V Belt Systems

From the alternator to A/C, the multi-v belt uses a truck’s engine to operate crucial components. Here’s how to keep things running smoothly.

You hop in the cab to start up your truck and notice — uh-oh… something doesn’t sound quite right in the engine compartment. If left unchecked, it could wind up with you stranded on the side of the road, in need of service. But what could it be? Let’s Pop The Hood and take a look.

Navigating The Legal Landscape with Succession Planning

Planning for a successful business handover means doing things by the book.

AMN Drivetime: Cal Ganda’s Continental Journey

Ganda embodies servitude leadership, prioritizing team success and customer-centricity.

Replacing Your Power Steering Reservoir

Discover why simply flushing out contaminants from power steering reservoirs may not be sufficient to prevent potential failures.

Planning for Your Shop’s Success In The Future

Understanding succession planning before you need it is critical. This series is presented by Standard.

Other Posts

The Autel IA900

Take an in-depth look at the Autel IA900 Alignment and ADAS calibration frame solution.

Troubleshooting Remote Keyless Entry and Vehicle Starting Issues

Learn how key rings, RFID chips, and other factors can affect your vehicle’s security system and learn to resolve these problems.

Choosing the Right Power Steering Fluid

Learn what power steering fluid is, why it’s crucial for your customers vehicle, and how to choose the right type.

What Causes the White Crystals in an SCR System?

This video covers how detergents and surfactants in Diesel DEF Medic Plus clean the DEF system. This video is sponsored by Rislone.