1. Product Overview
The Slime 20128 Chrome High Performance Tire Valve Stems are designed to replace worn or leaky tire valves. These are clamp-in valve stems featuring rubber grommets, suitable for various vehicle types. Each pack contains two valve stems.
Key features include:
- Fits both 0.453 inch and 0.625 inch rim holes, offering broad compatibility.
- Capable of withstanding a maximum cold inflation pressure of 100 PSI.
- Constructed with a chrome valve stem for durability and heat resistance during long drives.
- Designed for replacing existing tire valves.
Image 1.1: Slime 20128 Chrome High Performance Tire Valve Stems in their retail packaging. The packaging indicates the model number 20128 and highlights its compatibility with .453" & .625" rim holes and 1-1/4" length.
2. Installation Guide
Proper installation of tire valve stems is crucial for tire safety and performance. It is recommended that tire valve stem replacement be performed by a qualified professional. If attempting self-installation, proceed with caution and ensure all safety measures are followed.
2.1 Safety Precautions
- Always deflate the tire completely before attempting to remove the old valve stem.
- Use appropriate tools to avoid damage to the rim or tire.
- Wear protective gloves and eyewear.
- Ensure the vehicle is securely supported if working on a lifted vehicle.
2.2 Required Tools
- Tire deflator or valve core removal tool
- Valve stem puller (optional, but recommended)
- Wrench or socket set (for tightening the nut)
- Soapy water solution (for leak detection)
2.3 Installation Steps
- Deflate Tire: Completely remove all air from the tire. This can be done by removing the valve core.
- Remove Old Valve Stem: If replacing an existing valve stem, carefully cut or pull out the old rubber valve stem from the rim hole. Clean any debris or residue from the rim hole.
- Prepare New Valve Stem: Ensure the rubber grommet is properly seated on the base of the new Slime valve stem.
- Insert Valve Stem: From the outside of the rim, insert the threaded end of the new valve stem through the rim hole.
- Secure Valve Stem: From the inside of the rim, place the washer (if included) and then thread the nut onto the valve stem. Hand-tighten the nut initially.
- Tighten Nut: Using a wrench or socket, carefully tighten the nut. Do not overtighten, as this can damage the rubber grommet or the rim. The goal is a snug fit that creates a seal.
- Inflate Tire: Reinstall the valve core and inflate the tire to the manufacturer's recommended pressure.
- Check for Leaks: Apply a soapy water solution around the base of the valve stem. If bubbles appear, there is a leak. Re-tighten the nut slightly or re-evaluate the installation.
Image 2.1: A pair of Slime 20128 Chrome High Performance Tire Valve Stems, removed from their packaging, showcasing their chrome finish and rubber grommets.
Image 2.2: A detailed close-up of the Slime 20128 valve stem, showing the threaded body, rubber grommet, and the cap, illustrating the components involved in securing the valve to the rim.
3. Operation and Maintenance
Once installed, these valve stems require minimal ongoing operation and maintenance, primarily focusing on proper tire inflation and periodic inspection.
3.1 Regular Operation
- Tire Inflation: Always inflate tires to the vehicle manufacturer's recommended pressure, typically found on a sticker inside the driver's side door jamb or in the owner's manual. Do not exceed the maximum cold inflation pressure of 100 PSI for these valve stems.
- Valve Caps: Always keep the valve caps securely tightened on the valve stems. Valve caps protect the valve core from dirt, moisture, and debris, and provide an additional seal against air loss.
3.2 Maintenance
- Periodic Inspection: Regularly inspect the valve stems for any signs of damage, cracks in the rubber grommet, or corrosion on the chrome finish.
- Leak Check: Periodically check for slow leaks by applying soapy water around the valve stem base and the valve core. Bubbles indicate an air leak.
- Cleaning: Clean the valve stems with a mild soap and water solution. Avoid harsh chemicals or abrasive cleaners that could damage the chrome finish or rubber components.
- Valve Core Replacement: If a leak is detected from the valve core, it can be replaced using a standard valve core tool without needing to replace the entire valve stem.
4. Troubleshooting
This section addresses common issues that may arise with tire valve stems.
| Problem | Possible Cause | Solution |
|---|---|---|
| Air Leak from Valve Stem Base | Improperly tightened nut, damaged rubber grommet, or debris in rim hole. | Ensure the nut is tightened securely (do not overtighten). Inspect the rubber grommet for damage; if damaged, the valve stem may need replacement. Clean the rim hole thoroughly before installation. |
| Air Leak from Valve Core | Loose or faulty valve core. | Tighten the valve core with a valve core tool. If the leak persists, replace the valve core. |
| Difficulty Inflating Tire | Obstructed valve core or faulty air chuck. | Check if the valve core is fully seated and not obstructed. Ensure your air chuck is properly connected and functioning. |
| Valve Stem Appears Loose | Nut has loosened over time. | Re-tighten the nut on the valve stem. If it continues to loosen, consider applying a thread-locking compound (e.g., Loctite) to the threads, ensuring it does not interfere with the rubber seal. |
5. Specifications
Detailed specifications for the Slime 20128 Chrome High Performance Tire Valve Stems:
| Attribute | Detail |
|---|---|
| Model Number | 20128 |
| Brand | Slime |
| Material | Chrome (stem), Rubber (grommet) |
| Color | Chrome / Black |
| Length | 1-1/4 inches (TR416) |
| Rim Hole Compatibility | 0.453 inch and 0.625 inch |
| Maximum Cold Inflation Pressure | 100 PSI |
| Number of Pieces | 2 (per pack) |
| Item Weight | 0.8 ounces |
| Product Dimensions | 4.4 x 2.5 x 0.9 inches |
| Fit Type | Universal Fit |
| Vehicle Service Type | Passenger Car |
| UPC | 716281503139 |
Image 5.1: The Slime valve stem packaging held in a hand, illustrating the compact size and dimensions of the product (approximately 4.6 inches or 11 cm in length).
6. Warranty and Support
For information regarding product warranty, returns, or technical support, please contact Slime customer service directly.
You can visit the official Slime website for more details and contact options:
Visit the Slime Store on Amazon
Please have your product model number (20128) and purchase details ready when contacting support.
