Trailer Bearing/Brake problem Tips

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  • Flux
    Senior Member of PLANETNAUTIQUE
    • Jul 2003
    • 408

    • Palmdale, Ca.


    #1

    Trailer Bearing/Brake problem Tips

    So we trailered up and headed out over the weekend. About 200 miles each way. When my buddy arrived with the boat at camp we had a pretty good metal rubbing noise going on one of the disk brake axles, and much lesser on the opposite side. I noticed both rims were covered in brake dust, but the road in is very hilly and windy (Nacimiento Resort). So on Sunday I said a silent prayer and we trailered the 200 miles home. No incidents thankfully, and I drove behind him the whole way to make sure.

    I had noticed previousely that those hubs run hotter (of course) and tend to empty the Bearing Buddies every trip. The rear, non-brake hubs stay full and are fine. The grease has also seeped out the fronts of the Buddy and onto the rim here and there and there is usually grease that has come out into the Bra.

    So this morning I talked to the Trail Rite guy and he was helpful, but did not want me to buy alot of parts until I take em apart and diagnose the problem. My order of business is as follows:

    Jack up the first wheel and check for play. Too much means hub nut is too loose. Spin wheel and check for resistance. I wil probably have some since something is definately rubbing.

    Remove tire and rim, check for grease on back side, if grease is present, rear seal is probably fried and bearings are shot. If not, check calipers.

    Spin it and try to see if the caliper is locked up or rubbing hard. Engage and disengage the actuator to see if that helps out. Actuator could be stuck too, causing rubbing.

    Remove caliper and check pads. Spin wheel here and listen for metal rubbing noise and overal free wheel. If good, then bearings may be fine, no need to remove rotor hub.

    I am fearful that we have some fried up bearings and have a bad seal. I could have a bad caliper or whatever else, who knows?? won't figure it out until I get in there take soem stuff apart.

    Word to the wise is keep your trailer bearings in good order, your hubs greased, and your lugnuts properly torqued. We got lucky nothing bad happened on the trip, but we definately rolled the dice a bit.

    Any advice or experiences with this sort of thing is greatly appreciated. I gotta get this squared away by Friday because we are off to the lake again!!
  • Rick
    1,000 Post Club Member
    • Mar 2004
    • 1250

    • San Diego, Ca

    • 1962 Keaton Utility. 2000 Ski 1965 Barracuda

    #2
    RE: Trailer Bearing/Brake problem Tips

    If the Emergency cable has been puilled by accident Your brakes may be locked up and that would cause excess rubbing. If youi can't turn the discs easily with the wheels removed check the actuator to make sure it isn't locked. If you have a UFP actuator and disc buddies you can find them here. http://www.ufpnet.com/ They are really good about giving advice. Good Luck
    Nautiqueless in San Diego

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    • DavidF
      Senior Member of PLANETNAUTIQUE
      • Sep 2004
      • 611

      • Austin, TX


      #3
      RE: Trailer Bearing/Brake problem Tips

      My advice: No matter what you do, pull the hubs and check the bearings for discoloration or pitting. If you find one or the other, replace teh bearings and races. If you are loosing grease, then the seals are shot. Make sure you replace them with Marine seals, NOT automotive seals. Trust me, they are vastly different (marine seals have two sealing lips and a spring on the inside. Automotive seals do not).

      Ensure that the calipers are not frozen and the pistons retract properly as it seems the pads are dragging on the rotors. Disk brake master cylinders are different than drum brake master cylinders, so ensure you have the correct one if it was changed recently. Disk brake master cylinders bleed off pressure once released to help the pads retract.

      If you are "filling" the bearing buddies, you will rupture the seals. The proper fill technique is to stop pumping in grease once the cup lifts off the seat no more than 1/8". You should just barely be able to rock the cup to the side with your finger. If you pump in too much grease, it will be forced past the seal due to the strength of the spring on the bearing buddy.

      Again, I highly advise that you inspect the bearings!

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