grease 101

Discussion in 'Technical' started by 71gold, Aug 31, 2007.

  1. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,589
    Likes Received:
    2,935
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    we put new wheel bearings on my sons truck...in less than 200 miles he had a popping in the right front...the outer bearing was busted.
    we got a new set for both sides and replaced the ...bearings, races, spindel and rotor on the right side. we ran out of time so we had to plan on doing the other side the next day...well on the way home from work the next day the left side went out...we put new ...bearings, races and rotor on that side.
    this is the same brand of grease i have used for years (not the same can). i have it on the bearings in my mav. and it has 10-12,000 on them.
    the old grease was ...black...
    i have switched to a diff. grease, the new i am using is ...red...
    i took the bearings off the mav. and cleaned them up and packed them with the new grease. i am wondering what happened...maybe a bad set of bearings? :hmmm:

    ...:huh:...
     
  2. Mavaholic

    Mavaholic Growing older but not up!

    Joined:
    Mar 9, 2002
    Messages:
    14,992
    Likes Received:
    209
    Trophy Points:
    258
    Location:
    Live Oak, FL
    Vehicle:
    Original 72 Sprint Owner, 71 Comet GT, 57 Ranchwagon, 57 4 dr Wagon
    When you put the first set of bearings in, did you replace the races too? If not, could have been some differences between the new bearing and old race.
     
  3. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,589
    Likes Received:
    2,935
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    new ...races...(new rotors). :yup:

    ...:bouncy:...
     
  4. dkstuck

    dkstuck Member

    Joined:
    Sep 23, 2004
    Messages:
    3,249
    Likes Received:
    10
    Trophy Points:
    118
    Location:
    Latrobe Pa (Pgh)
    Vehicle:
    72 Maverick in drag
    I would check an make sure proper bearing sets. Also, did you clean them with solvent? Never blow "spin" dry them. Any grease properly packed in bearings is going to last more than 200 miles.

    After you adjusted bearings, did you have any free play?
     
  5. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,589
    Likes Received:
    2,935
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    i read once, to tighten the nut...27 ft.lbs....(to seat the bearing).
    back off and retighten to ...17 ft. lbs...:yup:...
    anyone have any diff. specs. on how tight this nut should be...:huh:


    ...:bouncy:...
     
  6. dkstuck

    dkstuck Member

    Joined:
    Sep 23, 2004
    Messages:
    3,249
    Likes Received:
    10
    Trophy Points:
    118
    Location:
    Latrobe Pa (Pgh)
    Vehicle:
    72 Maverick in drag
    Think this may be your problem, after you re-tighten to 17 ft lb back off 1/2 turn them tighten to 10-15 INCH,, REPEAT,, INCH POUNDS then put your lock on align for cotter pin.
     
  7. WA8DDN

    WA8DDN Member

    Joined:
    Mar 25, 2006
    Messages:
    100
    Likes Received:
    10
    Trophy Points:
    60
    Location:
    Malvern, Ohio
    Vehicle:
    '74 Grabber, 302,C4,3:80 to 1 Traction lock. 1973 V8 car,LDO
    Sounds like a bad bearing. Early Jap bearings were hardened through. A shock load would cause them to break. That was a long time ago. They got that solved pretty quick. I personally prefer Timken bearings. I retired from Timken.
    A good way to set up wheel bearings is to grease and install them, then while spinning the wheel tighten the nut pretty snug. You will feel drag on the wheel. Back off the nut, do not spin the wheel. Tighten with your hand. thumb and forefinger as snug as you can. No special tools needed.
     
  8. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

    Joined:
    Apr 30, 2004
    Messages:
    6,511
    Likes Received:
    950
    Trophy Points:
    426
    Location:
    Wisconsin
    Vehicle:
    70 Maverick Grabber, 72 Maverick Grabber Restomod
    Yeh ...inch pounds are pretty small compared to foot pounds.

    In the shop we always spun the wheel and tightened the nut until the resistants would slow the rotation of the wheel a bit - then we would spin it up again and tighten once more until it would bind up again. Then we would relax it about a 1/4 to 1/2 turn and that would be that. I have never had a bearing fail that soon - even if it went completely dry with low grease.

    :huh:
     

Share This Page