Minggu, 15 Mei 2011

How to Replace the Wheel Bearings on a Toyota 4Runner

How to Replace the Wheel Bearings on a Toyota 4Runner

If you start hearing a metallic grinding or "whistling" sound coming from the wheels of your Toyota 4Runner when the vehicle is moving, it may be time to replace the wheel bearing. Since the wheel bearing carries the weight of the wheel, allowing it to spin without damaging the shaft or spindle that the wheel is connected to, it is very important that you change it immediately if it goes bad. If you don't, you could have a much more expensive repair on your hands.

Difficulty:
Moderate

Instructions

things you'll need:

  • Zip ties
  • New wheel bearing
  • Mechanics tools with torque wrench
  • Air compressor with impact wrench
  • Jack/jackstands
  • Special tool for removing the tie rod (available from any auto parts store)
  • Special bar-type gear puller tool from "Snap On"
  • Access to a machine shop
    • 1

      Break loose the lug nuts on the wheels in question while the car is still on the ground. Do not loosen them all the way. Just loosen them enough so that you can remove them easily when the car is off the ground.

    • 2

      Locate the closest jack point on your 4runner. You can use either the front or rear jack point depending on whether you will be working on the front or rear wheels. Make sure the 4runner is in park or first gear, and if you are working on the front wheels, engage the emergency brake.

    • 3

      Jack the 4runner off the ground and place the jack stands at the specified pinch welds under the car. Alternatively, you can place the jack stands underneath the frame. After the jack stands are in place, lower the vehicle onto the jack stands and check to make sure that the vehicle is stable.

    • 4

      Remove the lug nuts and wheel from the wheel you are going to work on.

    • 5

      Unbolt the bottom bolt on the brake caliper that holds the brake caliper in place on the rotor. Check to ensure that you are not loosening the connection that holds the brake fluid.

      Once the bottom bolt is removed from the caliper, you will be able to swing the caliper up out of the way. Secure the caliper to the coil springs above it with a zip tie. This will keep the caliper out of the way while you work without having to completely remove the entire brake system.

    • 6

      Remove the rotor with a rubber mallet. On Toyotas, you will have to remove two small screws on the rotor before you will be able to take the rotor off.

    • 7

      Remove the tie rod using the special tool supplied by the manufacturer or that you purchased at the auto parts store.

    • 8

      Using your impact wrench, remove the two bolts on the struts that hold the wheel assembly on.

    • 9

      Using the impact wrench, remove the axe nut and tap the CV joint out of place using a rubber mallet. Be sure you do not damage the CV boot in the process by banging directly on the end of the splines of the CV joint. Instead, tap the assembly around it until the CV joint "slides" out.

    • 10

      Remove the rest of the bolts that hold the lower ball joint to the suspension.

    • 11

      Using the special gear puller, remove the wheel bearing. The outer race will be left in the assembly. You will need to take this to the machine shop and have them press this out for you and install the new wheel bearing assembly.

    • 12

      Bolt everything back together in reverse order after you have installed the new wheel bearing and race assembly.

    • 13

      Put the wheels back on the car and tighten them enough so that the wheel is stable. Then lower the car onto the ground and torque the lug nuts to 100 ft lbs. Make sure that you are tightening the lug nuts in "steps" and also in a cross pattern.

Tips & Warnings

  • DO NOT place jack stands under anything but the pinch welds or frame of the vehicle.

Tidak ada komentar:

Posting Komentar