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Front hubs heating up

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by k5chevy, Sep 2, 2001.

  1. k5chevy

    k5chevy Newbie

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    Does anyone know why my hubs would get so hot they smoke??? Its a 79 with a Dana 44 full time converted to part time. My buddy says that I have to take out the spring that disengages the locking cog. Not to sure about that one! If any of you guys know, I'd love to know, too. Never had this problem before.

    Build it, Break it, Better it.
     
  2. DesertDueler

    DesertDueler 1/2 ton status

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    Sounds like you hubs are going bad. I would buy a new set and that would fix the problem.

    86 Jimmy 4"lift 35"MTRs Other cars 69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  3. dragricinMT

    dragricinMT 1/2 ton status

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    Check your wheel bearings and make sure they have plenty of grease. I had the same problem right after I got my Blazer. The bearings hadn't been touched in years. New bearings and grease solved my problem.
     
  4. k5chevy

    k5chevy Newbie

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    I re-pack the bearings, but didn't replace them, waiting for the money!

    Build it, Break it, Better it.
     
  5. michaelm

    michaelm 1/2 ton status

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    dont drive it anymore until you fix it please
     
  6. White Knight

    White Knight 1/2 ton status

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    It could be the brakes/rotor getting hot and tranferring the heat to the hubs, make sure the pads are releasing from the rotor...but I'd go with the bearings, if you off-road alot use marine grease to repack then stuff the hubs full, it'll keep the water out, and what water gets in will not wash out the grease.
    And DON"T DON"T DON"T drive it untill you've checked this, you lock up a bearing and goodbye spindle and God only knows what else...thats gonna be$$$$$$$$$$

    Later
    Veni Sancte Spiritus
    Da Pacem Cordium
    White Knight
     
  7. RedDwarf

    RedDwarf 1/2 ton status

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    I am willing to bet this is what's happening:
    when you repacked the bearings, you may not have gotten the locator pin on the inner spindle nut to go through one of the holes in the lock ring. This will cause the lock ring to be cocked off a little, and thus, the outer nut can not screw on to the spindle far enough.
    The outer spindle nut is actually rubbing on the clutch ring in the lock out hub, and that is causing the heat. It can also cause your hub to lock in while you are cruising down the highway. This will jerk the wheel in the direction of the hub that locks, obviously a potentially dangerous situation.

    If this is not the case, then it must be the brake calipers sticking like White Knight said.

    Either way, tell your friend (the spring removal specialist) to shut up. The springs turn with the rotor, and consequently, they also turn with the clutch ring, so no friction can occur between these parts.

    Lift It, Lock It, LIVE IT!!!
     

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