Brake shimmy?

Discussion in 'Technical' started by ford84stepside, May 4, 2012.

  1. ford84stepside

    ford84stepside Lone Wolf

    Joined:
    Nov 25, 2004
    Messages:
    4,038
    Likes Received:
    16
    Trophy Points:
    132
    Location:
    Berry Alabama
    Vehicle:
    1947 Lincoln Zephyr Coupe
    I have had a bad tie rod end for a while now. It wasn't in any danger of falling out, but it had a fair amount of slack in it. I finealy got around to replacing it today with a new Raybesteous US made one. I got my toe in off a little bit somehow, I marked my old end and screwed the new one in to match I thought, but it was way off. I measured the back and the front of the tire, and set the front 1/8" closer than the rear. I figured that would be close enough until I can get to the alignment shop in a few days. The cars drives much the same now as it did, just doesn't have that wee bit of slack when you turn the wheels. One thing that did happen today that I've never had before is a pretty hard shimmy when stopping. It shakes the steering wheel pretty good. It wasn't there before, or at least I never noticed it. Reckon what has caused this to pop up all the sudden? All the other tie rod ends are tight, ball joints are tight, so slack in steering. Could too much toe in cause this? Or do I need to start looking somewhere else? :hmmm:
     
  2. ford84stepside

    ford84stepside Lone Wolf

    Joined:
    Nov 25, 2004
    Messages:
    4,038
    Likes Received:
    16
    Trophy Points:
    132
    Location:
    Berry Alabama
    Vehicle:
    1947 Lincoln Zephyr Coupe
    21 views and not even a smart ass answer? This board is getting lax.
     
  3. mercgt73

    mercgt73 Member

    Joined:
    Sep 6, 2003
    Messages:
    3,829
    Likes Received:
    354
    Trophy Points:
    223
    Location:
    Eastern Shore, Maryland
    Vehicle:
    1973 Comet GT (clone), 1974 Mustang II, 1980 Bobcat Wagon
    :rofl2:

    Frank is too old to type anymore... Craig is busy trying to find a box... and who knows what Dave B is doing...

    Maybe the sloppy tie rod dissipated the already existent brake pulsation. Now that the tie-rod is tight, you are getting to feel more suspension related feedback.
     
  4. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,582
    Likes Received:
    2,933
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    I type every day, can I type any more than that...:huh:

    ...Posts Per Day: 3.45...
     
    Last edited: May 5, 2012
  5. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,582
    Likes Received:
    2,933
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    ...:yup:...
     
  6. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,582
    Likes Received:
    2,933
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    here you go...:rofl2:


     
  7. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

    Joined:
    Mar 9, 2002
    Messages:
    18,300
    Likes Received:
    1,362
    Trophy Points:
    878
    Location:
    Albany, Indiana
    Vehicle:
    1972 Maverick Grabber - Color: Orange Also, 1976 Ford Maverick 4-door, 1977 Mercury Comet 2-door.

    Originally posted around midnight.......21 views by 7:30 this morning. That just means those of us who know anthing were all in bed sleeping. :D

    I had a similar problem on a 1968 Torino I have. Turned out to be a brake spring installed updside down and it was rubbing and catching on the hub as it rotated.
     
  8. ford84stepside

    ford84stepside Lone Wolf

    Joined:
    Nov 25, 2004
    Messages:
    4,038
    Likes Received:
    16
    Trophy Points:
    132
    Location:
    Berry Alabama
    Vehicle:
    1947 Lincoln Zephyr Coupe
    I had a long reply typed out then the power blinked and I lost it...:mad:

    Maybe I was a little harsh this morning. Couldn't sleep much last night, and got up grumpy. Didn't realize the original post was so late.:( I was awake then, thought everybody else was, too.

    Anyway, merc may have something there. It may have been like that the whole time and I never noticed it due to the slack in that one tie rod. I guess it could be a warped rotor, but I've never had a warped rotor shake the steering wheel, only pulsate the brake pedal. It's always had a pull to the left when you had to get down hard on the brakes, so it's probably on that side. Steering is tight, no slop, and alignment is good, it goes straight down the road, even when you let it go. Going to have it aligned again pretty soon, not sure I got the toe set to where it needs to be.
     
  9. blugene

    blugene Senior member Supporting Member

    Joined:
    Jul 25, 2004
    Messages:
    10,768
    Likes Received:
    80
    Trophy Points:
    283
    Garage:
    1
    Location:
    Marietta, OK
    Vehicle:
    73 Comet GT, 72 Comet GT, 2008 "Comet" (our boxer, who is now in the galaxies)
    That right there makes me grumpy :mad:..
    I agree that the loose tie rod was probobly absorbing the wobble. Might be why it's worn too. Warping is caused by excessive heat. Can also reoccur easier when they get thin. Have it measured and resurfaced if still good. Clean and lubricate all slide points. You probobly know all this and your grumpy cause you gotta mess with it, I would be :D
     
  10. ford84stepside

    ford84stepside Lone Wolf

    Joined:
    Nov 25, 2004
    Messages:
    4,038
    Likes Received:
    16
    Trophy Points:
    132
    Location:
    Berry Alabama
    Vehicle:
    1947 Lincoln Zephyr Coupe
    A little update: Drove the car to cruise night. Left home, it was fine, but after a few brake applications, started a slight shimmy again. Left cruise in on the way home, same thing. Farther I drove, more brake simmy. I'm thinking now I've got a caliper sticking, causing pads to drag, in turn heating rotor, which then warps a little with the heat. Rotors are good and smooth, with barely a small lip left at edge, still thick. I might need to get a caliper and get the rotor turned. What do ya'll think? Am I on the right track?
     
  11. blugene

    blugene Senior member Supporting Member

    Joined:
    Jul 25, 2004
    Messages:
    10,768
    Likes Received:
    80
    Trophy Points:
    283
    Garage:
    1
    Location:
    Marietta, OK
    Vehicle:
    73 Comet GT, 72 Comet GT, 2008 "Comet" (our boxer, who is now in the galaxies)
    Yes. "Smooth" is not a way to check runout though.. But yes, I would check the thickness and have them resurfaced. Clean and lube all slides and contact points of caliper to spindle/bracket and where the pad back plate goes into the notch. I use Sil Glide.
     
  12. pegleg1858

    pegleg1858 Member

    Joined:
    Apr 14, 2012
    Messages:
    161
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    kentucky
    Vehicle:
    69 1/2 maverick
    It sounds like a warped brake rotor to me. If you hit your brakes and feel the shimmy in the steering wheel, its a tell tale sign of a warped rotor.
     
  13. rthomas771

    rthomas771 Member

    Joined:
    Jan 22, 2008
    Messages:
    8,072
    Likes Received:
    962
    Trophy Points:
    498
    Garage:
    1
    Location:
    GA
    Vehicle:
    '74 Maverick 302 5-Speed.'60 Falcon V8. '63.5 Falcon HT
    A bad front end alignment will cause the front to shake under braking.
     
  14. injectedmav

    injectedmav Member

    Joined:
    Sep 15, 2006
    Messages:
    2,114
    Likes Received:
    26
    Trophy Points:
    142
    Location:
    Georgia
    Vehicle:
    1972 Maverick 2dr 5.0l EFI, 2003 Expedition(wife's), 2002 F150 Supercab King Ranch
    A bad idler can cause this too, but the more common cause is the rotors, either a warped one(or both) or pad material transfer(which won't show up by measuring runout) but you can usually see this by dark spots on the face of the rotor.
     
  15. Dave B

    Dave B I like Mavericks!

    Joined:
    Mar 9, 2002
    Messages:
    16,931
    Likes Received:
    215
    Trophy Points:
    347
    Location:
    Parts Unknown......
    Vehicle:
    3 Grabbers
    How old are the calipers? How are the sliders? (or whatever that part is called)
     

Share This Page