Click here to sign up  Click here to go to the galleries  Click here to go to the code of conduct  Click here to go to the video page  Click here to go to the SW Meets page

Thread: Millie antiroll bar

Results 1 to 5 of 5
  1. #1 Millie antiroll bar 
    Club Member
    Join Date
    Nov 2011
    Posts
    347
    Many will have seen the discussion and warnings’ regarding the problems with compression struts in the thread “Safety Alert Ford Sierra Compression strut problems”.
    https://www.marlinownersclub.com/for...ht=compression

    This is to document how I am approaching rectification. I don’t make any claims that it is the best way or even a good way.

    First thing is to repair and strengthen the chassis and antiroll bar (arb) mounting.

    The tearing in my case was slight so I simply welded up the crack.

    I made up a plate to strengthen the mounting. The plate is intended to tie the mounting to the outside vertical edge of the chassis to dissipate the forces over a wider area. I did not want to disturb the existing fillet welds but to weld over them. So I bent the plate to be slightly dished. This also had the advantage that the reinforcement was attached closer to the arb. The front edge of the reinforcing plate was arranged to be a little way back from an existing weld in the chassis to avoid any additional stressing in this area. An initial cardboard template was used to cut the plates from 3mm steel. I think the chassis is about 3mm or less in this area so the reinforcement should effectively double it.

    Img_8544s.jpg

    The paint was removed from all areas to be welded. Zink primer applied. The plate was welded on three sides. My welding at its very best is adequate. Three millimetres is right on the limit of my MIG welder. I also found it hard to weld upside down and did not have much room to manoeuvre. The result was not very good looking but I believe it is strong. Every 10 minutes of welding needs an hour or more of cleaning up. The inner “sides” were left un-welded to allow corrosion protection to be sprayed in. They will be sealed up with filler.

    Img_8551s.jpg

    I have a number of commitments in the coming weeks so it will be a little while before I can continue this project.

    In the meantime has anyone any experience of Quinton Hazell QH QSK1000S Heavy Duty Track Control Arm Bush Ford Sierra 1982- 1993. These seem to be a little more rigid than the standard Sierra items but not as rigid as Polyurethane. I would be interested if any other members have tried them.

    Img_8568s.jpg


    Paul
    Reply With Quote  
     

  2. #2 Re: Millie antiroll bar 
    frequent forum contributor Club Member greyV8pete's Avatar
    Join Date
    Nov 2011
    Location
    Exeter
    Posts
    1,129
    I had a similar idea but would make the plate with a 90deg vertical bend to finish higher up the outside of the chassis rail, to spread the load over an even bigger area.


    Unlike the Berli which uses 3mm seam welded M/S box, the Cabrio chassis is only 2mm thick!


    I used those QH Heavy Duty track control arms on my old ‘87 Sierra and they were so restrictive of the ARB movement that the rubber wore out in about 12 months max. I then fitted the Superflex bushes but reverted to the correct O/E Ford washers. After I purchased my Hunter I made a similar change. Using the correct Ford washers (with the dished one at the front) there is better articulation of the joint than with the H/D rubber!


    Search elsewhere on the forum where I have documented all the part numbers. Peter.
    Reply With Quote  
     

  3. #3 Re: Millie antiroll bar 
    frequent forum contributor
    Join Date
    Nov 2011
    Posts
    337
    Quote Originally Posted by milliemarlin View Post
    In the meantime has anyone any experience of Quinton Hazell QH QSK1000S Heavy Duty Track Control Arm Bush Ford Sierra 1982- 1993. These seem to be a little more rigid than the standard Sierra items but not as rigid as Polyurethane. I would be interested if any other members have tried them.

    Paul
    Paul,

    This may or may not be relevant to a Marlin Cabrio but, as you may be aware, the Royale Sabre also use the Ford Sierra suspension including the the Track Control Arms and ARB.
    Some years back it was reported in the ROC club magazine a short article about these bushes. It said.....

    Still on the subject of suspension, I am grateful to Oliver Cooke for news of a Ford Technical Bulletin advising against replacing the track control arm compliance bushes with after-market heavy duty units. These heavy duty bushes, which attach to the anti-roll bar to the track control arm have been available for some time to overcome the premature failure of the standard Ford items which are a frequent cause of MOT failure. Although the heavy duty bushes overcome the problem, Ford state that the standard Ford bushes are specifically designed to distort under heavy braking in order to improve the cars stability whereas the heavy duty units do not distort and Ford believe that they could have been a contributory factor in some accidents.


    I've been unable to trace the Ford Technical Bulletin and have no further information but thought I would share this information.

    ....peter
    Reply With Quote  
     

  4. #4 Re: Millie antiroll bar 
    frequent forum contributor Club Member greyV8pete's Avatar
    Join Date
    Nov 2011
    Location
    Exeter
    Posts
    1,129
    Quote Originally Posted by Peterx View Post
    Paul,

    This may or may not be relevant to a Marlin Cabrio but, as you may be aware, the Royale Sabre also use the Ford Sierra suspension including the the Track Control Arms and ARB.
    Some years back it was reported in the ROC club magazine a short article about these bushes. It said.....

    Still on the subject of suspension, I am grateful to Oliver Cooke for news of a Ford Technical Bulletin advising against replacing the track control arm compliance bushes with after-market heavy duty units. These heavy duty bushes, which attach to the anti-roll bar to the track control arm have been available for some time to overcome the premature failure of the standard Ford items which are a frequent cause of MOT failure. Although the heavy duty bushes overcome the problem, Ford state that the standard Ford bushes are specifically designed to distort under heavy braking in order to improve the cars stability whereas the heavy duty units do not distort and Ford believe that they could have been a contributory factor in some accidents.


    I've been unable to trace the Ford Technical Bulletin and have no further information but thought I would share this information.

    ....peter
    Never heard of this before. Never noticed any of these symptoms on my Sierra with either these H/D bushes or the replacement Superflex ones. Equally no adverse effect with the Superflex fitted to the Hunter. With both cars the Superflex gave much more precise steering than either of the previously fitted bushes. I have also done some very heavy braking in the Hunter on the Castle Combe circuit without any sense of instability. Peter.
    Reply With Quote  
     

  5. #5 Re: Millie antiroll bar 
    frequent forum contributor Club Member chris_cussen's Avatar
    Join Date
    Nov 2011
    Location
    South Somerset
    Posts
    478
    I'll have to second Peters comment. Superflex on my cabrio and no issues under heavy braking either.
    Cabrio, Omex 2.0l 150bhp Zetec blacktop, Omex ECU and wiring loom.
    Reply With Quote  
     

Bookmarks
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
  •