Bearing maintenance help

Discussion in 'Tires / Brakes / Bearings / Axles' started by MeaganS, Apr 26, 2019.

  1. MeaganS

    MeaganS New Member

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    We have owned our fleetwood Fairview (2000) for the last year. I'm about to drive it 800 miles and dh thought it would be a good idea to check and regrease the bearings. We've never done that before but watched several videos and read tutorials. Dh has the big piece back on after reassembling it but we haven't put the tire on yet. When we rotate it it (the piece. I'm not sure what it's called) there's a fair amount of friction and a grinding noise. We think maybe it is rubbing against the breaking mechanism? We're assuming grinding sounds are bad. Is there a trick to it? It was working well before and didn't have grinding noises then.
     
  2. MeaganS

    MeaganS New Member

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    OK, dh says it's spinning fine, it's just a slight grinding noise now that's concerning us. Is that normal?
     
  3. tombiasi

    tombiasi Well-Known Member

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    Grinding noise is not normal. It could be caused by other things besides the bearings. Pull the hubs and inspect bearings and races.
     
  4. xxxapache

    xxxapache Well-Known Member

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    It could be your brake pads rubbing the drums, which is normal
     
    generok likes this.
  5. generok

    generok Well-Known Member

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    I agree, there should be a little drag from the brake pads, and you can hear that. Unless your bearings were exceptionally bad, the chances that you could hear a noise spinning them by hand without a load is low.

    If the hub is spinning hard, it's also possible he tightened the nut too much. It really doesn't need to be very tight.
     
  6. Wrenchgear

    Wrenchgear Near Elmira, Southern Ontario

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    All good points are mentioned here in these answers to you.

    1) Yes, true grinding is not normal
    2) Yes, could be your brake shoes rubbing the drums
    3) Yes, there could be a little drag from the brake shoes, and you can hear that. Unless your bearings were exceptionally bad, the chances that you could hear a noise spinning them by hand without a load is low.

    Chances are that a scale of rust came off of something while they were going back together and that rust piece is rubbing on something in there while the drum is rotating. The thing to decide is weather what you are hearing is scraping or grinding. Thats a big difference. Scraping is not so bad, grinding is bad.

    And as said, the nut is not to be too tight. Snug it up a little with a pair of channel lock pliers, (or equivalent), while spinning the drum by hand, then back it off to the first spot where the cotter pin will fit through. Some people like them to be only finger tight, but these are opposed tapered cone bearings, I like to have ever so slight preload on them, or at least no slop/slack. Back in the 1980's, Ford spec'd that there should be 12-14 in/lbs. of preload on tapered cone bearings. Thats an incredibly small amount, but its still not loose.

    Also, make sure that there is new grease pushed up through and around all the rollers of the bearings. Don't just have it wiped around on the outside. It needs to be worked into the center of the bearing.
     
    Last edited: Apr 27, 2019

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