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wheel bearing

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by dougrs, May 4, 2013.

  1. dougrs

    dougrs Junior Member

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    Hi Folks,
    I just want to verify what parts I need for the front wheel bearing replacement. I am buying the hub assembly (timken). Do I need to purchase new axle nuts? any other parts to replace during the procedure? thanks
     
  2. Dino33ca

    Dino33ca Member

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    Good luck, sounds a little technical. :cautious: You might want to get yourself a manual if you don't have one yet. Haynes has their online versions on special right now. How many miles have you got on her?

    Do It Yourself (DIY) Repair Manual from Haynes
     
  3. Britprius

    Britprius Senior Member

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    Yes you need a new axle nut. There is also a round dust shield at the rear of the bearing that is very easy to damage on dismantling or re assembly, so I would obtain one of these at the same time as the nut.

    John (Britprius)
     
  4. dougrs

    dougrs Junior Member

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    thanks
     
  5. dougrs

    dougrs Junior Member

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    Well I did the job. It took all weekend. there was no way the bearing assembly was going to come out of the knuckle while still on the car. So I took the knuckle off and then had to get pep boys to press out the bearing assembly. After 155,000 miles it was really stuck on there. I would recommend you go into the job assuming you must take the knuckle off and buy a $15 tie rod puller ahead of time. Car feels great now with the new bearings.
     
    Dino33ca and frodoz737 like this.
  6. Britprius

    Britprius Senior Member

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    Congratulations on a job well done. It does seem strange that on a comparatively strait forward job something allways will not come undone or something else is found, taking twice as long as could reasonably estimated.

    John (Britprius)
     
  7. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Nice work, thanks for sharing your experience.

    What was your method to remove the axle nut?
    Was it difficult to remove the ball joint and tie rod from the steering knuckle?
    What did Pep Boys charge to remove the old front axle hub from the steering knuckle?
    Regarding the tie rod puller, did you buy the type that is like a fork where you pound on one end; or the type which uses a threaded mechanism to exert force?
     
  8. dougrs

    dougrs Junior Member

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    I ground down the end of a small metal rod to fit in the slot and pry out the factory crease in the axle nut. then I used an air gun to remove the nut. It was not really hard, just had to get the crease out of the nut.

    Pep boys charged $40 total to press out the bearing assembly on both knuckles, Not bad considering it was Sunday morning and no one else was open. They were very helpful at Pep boys. By the way I learned the pep boys will rent tools also.

    I used a puller with fork hooks and a threaded center.
    Removing the knuckle from the car was really not a big deal, but I did not go into the job assuming this would need to be done since I had read online that the bearing assembly only requires the removal of the 4 bolts to get it loose. Like i said there was no way that bearing assembly would come out of the knuckle without a press. Once I had the new bearings in the knuckles ( that was easy to do just slowly tighten all four bolts and it pulls in) the re-assembly job was easy.

    So a summary of the process as I remember it is:
    Remove ground from battery.
    Remove the wheel.
    Remove two brake caliper mounting bolts with air gun and hang caliper out of the way.
    Remove the disc rotor (it is now loose).
    Remove the speed sensor (one screw) and hang out of the way.
    Remove the axle nut by prying out the crease in the nut.
    Remove the tie rod (either by using a puller where it connects to knuckle or you can unscrew at the adjustment point. You should mark both parts of the tie rod and the nut if you do this so that you can line them back up and hopefully not need to get an alignment. Better to use the puller at the knuckle).
    Remove the two nuts and one bolt that hold the lower ball joint to the knuckle with air gun.
    Remove the two bolts holding the knuckle to the strut tower with air gun.
    Pull the knuckle away and the axle will slide out. Position the axle carefully out of the way.
    Now the knuckle and bearing assembly is out of the car.
    Pop the dust shield off the back (where the axle comes in) and then remove the four bolts holding the bearing/hub in the knuckle. You can do the last two steps with the knuckle in the car, but there is no reason to since you wont be able to get the bearing/hub out of the knuckle on the car.
    Now take the knuckle to someone with a press and have the press out the bearing/hub.
    Clean the inside of the knuckle and install the new bearing/hub. re-assembly is easy.