Results 1 to 8 of 8

Thread: Control Arm Suspension Preload Questions

  1. #1
    Join Date
    May 2014
    Location
    Springfield OH
    Posts
    1,189
    My Cars
    1993 525i 1995 553i

    Control Arm Suspension Preload Questions

    Do I only need to pre-load the suspension for the rear control arm or both? And how would guys reccomend I SAFELY pre-load and torque with out ramps? It seems like it might be possible with wheels on ground and reaching around with bumper off for more clearence.
    95 E34 553i6 LS TR6060 Project
    93 E34 525iA Beater with no heater
    VANOS kicked in yo!

  2. #2
    JimLev's Avatar
    JimLev is offline Artifically Aspirated Moderator
    Join Date
    Oct 2006
    Location
    Sundance Mesa, NM
    Posts
    19,852
    My Cars
    00 540/6, '16 Highlander
    The ends of the arms that connect to the subframe should be torqued with the suspension pre-loaded.
    Take the wheel off and put something under the swing arm just behind the wheel, then lower the jack.

  3. #3
    Join Date
    Apr 2016
    Location
    NC
    Posts
    48
    My Cars
    2003 540iT
    I drove up on some lumber I had laying around to give me room under the car. Super safe and more than enough room to work under there.

    916956090322825227-account_id=1.jpg

  4. #4
    Join Date
    Jan 2015
    Location
    Tempe, AZ
    Posts
    7,664
    My Cars
    1995 525i/5
    What I've done is having the the car jacked up on all fours and then just jacking up one corner by the wheel carrier, getting it up just enough to start taking the weight off of the nearest jack stand.
    1995 525i 5-speed - Thread

  5. #5
    Join Date
    Apr 2016
    Location
    Iceland
    Posts
    59
    My Cars
    1996 BMW 523i E39 M52
    That's what I did also, worked perfectly.

    Quote Originally Posted by blilrat View Post
    I drove up on some lumber I had laying around to give me room under the car. Super safe and more than enough room to work under there.

    916956090322825227-account_id=1.jpg

  6. #6
    Join Date
    Sep 2013
    Location
    Tx.
    Posts
    4,133
    My Cars
    02 bmw 540
    Quote Originally Posted by Snuddi View Post
    That's what I did also, worked perfectly.
    Funny I just did this, this weekend. Drove it up on some ramps and preloaded the car. Had the family sit in the car, lol. Then tightened my control arms.

  7. #7
    Join Date
    May 2014
    Location
    Springfield OH
    Posts
    1,189
    My Cars
    1993 525i 1995 553i
    I just ended up jacking the car by the rotor to the point where it just came off the jack stand. No idea how well it will work since I had to take it to alignment shop.
    95 E34 553i6 LS TR6060 Project
    93 E34 525iA Beater with no heater
    VANOS kicked in yo!

  8. #8
    Join Date
    Sep 2013
    Location
    Tx.
    Posts
    4,133
    My Cars
    02 bmw 540
    Quote Originally Posted by XCRN View Post
    I just ended up jacking the car by the rotor to the point where it just came off the jack stand. No idea how well it will work since I had to take it to alignment shop.
    Mine is a bit off, I'll make an adjustment via the pitman arms ( that's what their called). I noticed one side has more threads than the other. While it minor, I very picky.

    I take it from previous install performed at my suspension guy he didn't preload then proceeded to align, which I attribute for the misalignment...

Similar Threads

  1. control arm and bushing question
    By KDAWG97M3 in forum 1992 - 1999 M3 (E36)
    Replies: 10
    Last Post: 11-16-2006, 11:28 AM
  2. Rear Camber Control Arms/ camber plates Question
    By Sadiq in forum 1992 - 1999 M3 (E36)
    Replies: 0
    Last Post: 09-02-2006, 07:26 PM
  3. Lower control arm bushing replacement question.
    By Eryan36 in forum General BMW Mechanical Help sponsored by RM European Auto Parts
    Replies: 3
    Last Post: 07-19-2006, 07:36 PM
  4. Replies: 18
    Last Post: 01-31-2006, 07:33 AM
  5. BMW E34 Front Control Arm Suspension Package M5 Upgrade
    By Ted K in forum 1988 - 1996 (E34)
    Replies: 2
    Last Post: 10-04-2005, 05:42 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •