Video Guide: Changing Difficult CORVETTE ZR19 Tires

Changing Difficult CORVETTE ZR19 Tires: Tackling it with the Coats MAXX 90 & MAXX Wheel Lift

Welcome to the Coats Tough 2 Change series! In this episode we’ll dive into the intricate process of changing a particularly challenging tire: the 245/45 ZR19 from a Corvette C8. This tire is notorious for its large diameter, non-compliant nature, and cosmetically sensitive wheel . Using the Coats MAXX 90 Rim Clamp Tire Changer and MAXX Wheel Lift, we’ll walk you through each step to ensure a safe and efficient tire change.

Application on the Corvette C8:

The Corvette C8, known for its mid-engine layout and high-performance capabilities, uses these tires for their excellent balance of grip, stability, and handling. The 245/45 ZR19 tires are typically used on the front wheels, while the rear tires are wider and might have a different aspect ratio to accommodate the vehicle’s performance needs.

Safety Check & Preparation

Before beginning any tire change, it’s essential to perform a safety check and prepare your workspace:

Remove Wheel Weights: Ensure all wheel weights are removed from the outside and backside of the wheel.

Inspect for Damage: Carefully examine the tire and wheel for any damage that might hinder the dismounting process.

Release Air Pressure: Remove the valve core and allow all the air pressure to be released from the tire and wheel.

Loosening the Bead

The next crucial step is to loosen the bead:

Positioning: Place the tire and wheel assembly onto the wheel lift.

Operation: Use the bead loosening shovel of the Coats MAXX 90 to carefully separate the tire bead from the wheel. Take care to make sure the TPMS sensor is out of the path of the bead loosener.

Clamping the Wheel

Securely clamping the wheel is vital to avoid any damage:

Use Proper Jaws: Use the Grip Max 2.0 clamps to secure the wheel on the tire changer without causing any harm thanks to the Grip Max rubber clamp inserts.

Use the Wheel Lift: The MAXX Wheel Lift not only helps position the wheel onto the tire machine but also prevents back and finger injuries.

Setting the Leverless Duck Head

Setting up the leverless duck head is a key step in the process:

Positioning: Swing the leverless duck head into place, setting it against the wheel at an appropriate point of entry.

Locking: Lock the duck head into place, ensuring it’s securely positioned for the next steps.

Dismounting the Top Bead

With the tire securely clamped and the leverless duck head in place, we can start dismounting the top bead:

Apply Lubrication: Apply a small amount of lube to the sidewall of the tire and the leverless duck head.

Use the Robo Roller: Create an opening for the duck head to enter the tire, then lift the tire over the duck head.

Engage the Robo Arm: Press the tire into the drop center and begin rotating the tire to dismount the top bead.

Dismounting the Bottom Bead

After the top bead is dismounted, the focus shifts to the bottom bead:

Positioning: Ensure the bottom bead is inside the drop center.

Leverless Duck Head: Lower the duck head, lift the tire over the head, and support the tire as you rotate and dismount the bottom bead.

Mounting the New Tire

Mounting the new tire requires careful attention to detail:

Check Tire Orientation: For directional tires, ensure the correct orientation by checking for arrows or “outside” markings.

Position the Leverless Head: Lock the leverless head into place and adjust it properly.

Mount the Bottom Bead: Start with the bottom bead, which is typically easier to mount.

Utilize Accessories: Use the Robo Roller and Robo Arm to manage the top bead, ensuring it stays over the leverless head and into the drop center.

As you continue to mount the top bead, the tire will become tighter. Adjust the Robo Arm and Roller to maintain control and prevent the tire from climbing over the head.

Final Steps and Tips

Once the tire is mounted, remove the Robo Arm and Roller, and double-check the tire’s position. Ensure it’s correctly seated and balanced before finishing.

Changing a difficult tire like the 245/45 ZR19 from a Corvette C8 can be straightforward with the right equipment and techniques. The Coats MAXX 90 Rim Clamp Tire Changer and MAXX Wheel Lift are invaluable tools that provide the precision and safety needed for such tasks.

To learn more about the Tough 2 Change series or view more episodes visit our YouTube Channel.

To request service or further assistance, visit coatscompany.com/contact or call 1-800-688-6359.

Disclaimer: Always follow safety guidelines and refer to the user manual for specific instructions related to your equipment.