Raybestos Intensive Wheel Hub Cleaning Process

Raybestos Intensive Wheel Hub Cleaning Process

Here's why it's so important to properly clean a Raybestos wheel hub.

Models:

All (Particularly in the Rust Belt) 

Condition: 

Recently, we had a Jeep Grand Cherokee in our shop for a brake job. Upon removing the rotor, we found one of the rustiest wheel hubs we have ever seen (see Image 1). 

Being in the Rust Belt, we are used to cleaning rusty hubs. However, in this case, traditional hub cleaning methods weren’t enough to get the scaled rust off the rotor. 

Why is it Important to Clean a Wheel Hub? 

Some technicians don’t spend the time to clean the wheel hub during a brake job. It can be a time-consuming process, especially in the Rust Belt where a lot of rust and corrosion can build up on the hub. But, if you skip this step, it can cause an excessive lateral runout of the rotor. This will eventually lead to pedal pulsation. 

To illustrate this, we checked the runout of the rotor on the Grand Cherokee we were working on before cleaning the hub. The runout was 0.014”. The specifications for this application was 0.002” or less. Therefore, it is so important to take the time to clean the hub properly. 

When cleaning a wheel hub, a lot of technicians use abrasive discs and a wire brush. While this does a good job of cleaning the rotor surface, it doesn’t do a good job of getting the area around the studs. We recommend using a hub resurfacing tool that can go over the studs and clean the hard-to-reach areas (see Image 2). As always, make sure to give the hub a once-over with a wire brush before installing the rotor. 

What happens if you go through your regular hub cleaning process, but there is still buildup on the hub? There are a few options. You can use a hammer and a flathead screwdriver or chisel to pop the scaled rust off the hub (see Image 3)

This is an effective, but time-consuming process. However, if you have access to a needle scaler, you can quickly blast the scaled rust off the hub.

Courtesy of Raybestos

You May Also Like

Adjusting Parking Brakes

You should never estimate when it comes to parking brake adjustments.

The parking or emergency brake has to perform two distinct jobs. First, it must be able to hold the vehicle on an incline. Second, it must be able to stop a vehicle under a specific distance if the hydraulic brakes have failed. These standards are set by the Department of Transportation (DOT), and the kicker is these standards must be met with the force applied by a little old lady. But, over time, the cables can stretch and the friction materials change their length and thickness, which is why adjustments to the system are required.

Charging More for Brake Jobs

Here’s why charging more for brake jobs keeps customers coming back.

Servicing Multi-Piston Brake Calipers

Caliper replacement may be necessary in high-mileage vehicles because of fluid leaks or because the calipers are sticking.

Wheel Bearings

Higher quality wheel bearings use higher quality steel that is properly heat treated.

EV Brake Jobs

With these vehicles, the major aggravation for shops is brake noise and uneven brake pad wear.

Other Posts

Understanding Passive Wheel Speed Sensor Operation

Passive types of wheel speed sensors are still used in many applications so understanding their operation is important.

Diagnosing Hub Unit Wheel Speed Sensor Codes

For the technician, it can be frustrating. The wheel speed sensors are some of the longest circuits in the vehicle.

Gen 1 Wheel Bearings

Removing and installing these bearings requires the correct tools and patience.

Wheel End Service – Wheel Speed Sensors and Bearings

The only way to diagnose the sensor and circuit is with a scan tool or scope.