Results 1 to 9 of 9

Thread: D3 lower control arms

  1. #1
    Join Date
    Feb 2013
    Location
    Sydney
    Posts
    39
    Total Downloaded
    0

    D3 lower control arms

    So looking at replacing the lca on the D3 as one of the hydro bushes is leaking. there is two different part numbers for coil or air. Given the amount sold the air lca is significantly cheaper i was wondering if anyone could tell me what the difference is between the two as i want to swap them when i do the shocks and springs.

    Cheers
    Paul

  2. #2
    Join Date
    Feb 2012
    Location
    Wollongong
    Posts
    773
    Total Downloaded
    0
    Hey Paul,

    I don't know the authoritative answer but can tell you what the LR Service / Factory Repair manual has to say on the matter:

    (Section 204-01 - Description and Operation)

    General: The front suspension is a fully independent design which offers a reduction in unsprung weight over the beam axle design
    fitted to previous Land Rover models. The front suspension comprises an upper control arm, a lower control arm, a wheel
    knuckle and hub, an anti-roll bar and links assembly and a damper assembly. The damper can have a coil spring or air
    spring, both damper types use a similar design. The suspension components are common to both coil and air spring
    versions.
    Later in the chapter it states:

    On vehicles fitted with coil springs there is a jacking bracket located on the lower control arm.
    Part number 17 in the attached diagram is the jacking bracket and there is no separate diagram for Air Models.

    And I assume that would be the difference between the parts.

    The chapter is too large to post, but PM or email me and I can send it to you if that would be useful (or the entire Front Suspension section which has detailed procedures, torques etc if you need it).

    Hope that helps a little !

    Cheers,
    Michael
    Attached Images Attached Images

  3. #3
    Join Date
    Feb 2013
    Location
    Sydney
    Posts
    39
    Total Downloaded
    0
    Micheal, you are a bloody legend. I rang LR here in Canberra and while they could confirm that it was a different part number they couldn't say what was different about it. There is a significant difference in price due to the volume that is sold so if I can use the air ones that would be awesome. If you can email the info through to neltech dot engineering at gmail dot com

    That would be great.

    I love this forum

    Cheers
    Paul

  4. #4
    Join Date
    Feb 2012
    Location
    Wollongong
    Posts
    773
    Total Downloaded
    0
    I'll email it to you when I get to my computer later in the day. I always recommend that folks Don't base life decisions on my assumptions - but the book seems fairly clear - see what you think and let us all know how you go.

    Canberra stealer ... Recently had a very expensive experience with them as a result of tossing a wheel bearing on the way to the snow. Good service horrific price.

    Also (if I am right this question will make sense if not ignore), I found a part of the lhs headrest cable in my lhs seat whilst cleaning up glass from a recent break in where they smashed my window - d'oh ! Did you get them working ? Maybe able to extricate cable if needed.

    Cheers
    Michael

  5. #5
    Join Date
    Feb 2013
    Location
    Sydney
    Posts
    39
    Total Downloaded
    0
    Hahahaha, small world. I saw the photos that you put up at work. I hope that it all worked out. I ended up having to pull them out and tidy up the terminals from the cable and a couple of new fuses but they are working a treat.

    Regards
    Paul

  6. #6
    Join Date
    Feb 2012
    Location
    Wollongong
    Posts
    773
    Total Downloaded
    0
    Hahaha, small world indeed. All sorted thanks to NRMA & the Canberra stealer. Probably should turn my attention to the RHS bearing before it has a similar issue - but at ACT stealer prices, I thought I'd get that done here !

    Cheers,
    Michael

  7. #7
    Join Date
    Jan 2010
    Location
    Edmonton Alberta Canada
    Posts
    743
    Total Downloaded
    0

    Lower Front A arm Jacking bracket?

    Quote Originally Posted by Epic pooh View Post
    Part number 17 in the attached diagram is the jacking bracket and there is no separate diagram for Air Models.

    And I assume that would be the difference between the parts.
    I am fascinated - a jacking bracket on the lower A arm of the coil models!

    I wonder why not on the air spring models?

    There is so much articulation on the air spring models that I most often jack on the underside of the A frame but I always wondered if that was really OK. It sure makes changing a tyre easy.

    Jacking on the rear A arm does not work so well but the fronts, it is hard to resist.

    Is part 17 some sort of bolt on piece? I doubt it - would think it is welded but ....

  8. #8
    Join Date
    Feb 2012
    Location
    Wollongong
    Posts
    773
    Total Downloaded
    0
    Mine is normally jacked under the A arm also - the mechanic does it that way and says its fine, certainly never caused an issue. One day I (in theory) may try to get it to lift its own wheel by shoving the jack under the A arm with ignition on then letting jack down slightly (I've read it will then lift a wheel).

    I've never seen the part in question, but it would be useful on air models, that's for sure. I imagine it would be welded on to take the weight, looks welded from the diagram - be interesting to hear from Paul if his actually has this part or if it is a figment of my manuals imagination (ie. production change or a case of 'good idea - lets not do it').

    Bizzarely in the section of the repair manual I have about jacking and lifting, there is no mention of this part - only references are to points A, B, C on the chassis rails. The manual actually explicitly states not to jack under the suspension arms. Maybe that should strike a cautionary note.

    Solihull at their finest !?!

  9. #9
    Join Date
    Jan 2010
    Location
    Edmonton Alberta Canada
    Posts
    743
    Total Downloaded
    0

    Dimple just in the right place.

    With the LR manuals, you always have to wonder if some comment in a manual applies to the version one has as opposed to the build for some other market.

    All I know is that the dimple on the underside of the front arms sure is in a convenient location to use as a jacking point for my bottle jack. The threaded jack extension fits nicely up into the dimple. When one is only changing from summer to winter tyres, one only has to jack about an inch to get the rubber off the ground - really convenient - and safe.

    For the rears, jacking on the dimple is not so great an idea as the A arms tend to normally sit more on an angle so there is a real chance of slippage and toppling.

    Still, as you said, it would be nice to hear more on that part 17 jacking tab - does it really exist or was it just a good idea that only made it to the parts manual?

    As to the self lifting procedure, while I have heard of it, I think the definitive procedure yet remains to be developed. For certain, I doubt one will ever see it in the LR manual.

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
  •  
Search AULRO.com ONLY!
Search All the Web!