1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

The Definitive Freelander VCU testing thread

Discussion in 'Common Faults and Questions' started by The Mad Hat Man, Feb 25, 2010.

< Previous Thread | Next Thread >
  1. The Mad Hat Man

    The Mad Hat Man Well-Known Member LZIR Despatch Agent

    Joined:
    Sep 11, 2005
    Posts:
    83,059
    Likes Received:
    8,728
    Location:
    Embasinga stocæ
    Here is the latest VCU test, as proposed by Hippo, on this site.

    The angle that the bar traverses through is likely to be critical.
    I suggest the the bar starts at 1:30oclock and ends at 4:30oclock? ie the bar traverses 90 degrees starting at 45 degrees and ending at 135 degreees. This to be carried out with a 1 metre bar and a 5KG weight.

    Just in case it makes a difference, it would be useful if model & engine type of freelander was noted - see the vcu test results thread.
     
    Last edited: Jan 6, 2011
  2. Hippo

    Hippo Lord Hippo

    Joined:
    Nov 22, 2007
    Posts:
    42,671
    Likes Received:
    32,404
    We is famous. :)

    [​IMG]
    LZfamous lxOzQBV
     
    Last edited: Apr 14, 2020
  3. Oddie

    Oddie AntiSeptic Sandal Wearer

    Joined:
    Nov 18, 2007
    Posts:
    26,157
    Likes Received:
    353
    Location:
    In a puddle in Kernow
    If yer here coz the mag sent you then yer HG has failed, yer boyfriend is having an affair with another hairdresser and you should paint the brake calipers red to match yer ring piece. Signed er pretend rufty tufty tratter boy.
     
  4. Beast o Bodmin

    Beast o Bodmin Banned

    Joined:
    Nov 22, 2008
    Posts:
    17,157
    Likes Received:
    8
    Location:
    never did like the welsh.....tom jones is also cra
    when arriveing here from car mecanic magazine be warned there are gay tratter wierdos as above.

    there also skin flints and have babies on christmas day.
     
  5. The Mad Hat Man

    The Mad Hat Man Well-Known Member LZIR Despatch Agent

    Joined:
    Sep 11, 2005
    Posts:
    83,059
    Likes Received:
    8,728
    Location:
    Embasinga stocæ
    [​IMG]

    Just thought I would poo-poo the above article, although nice that they send peeps to us.....

    If, as shown in the second diagram, the VCU locks at just above 100C, then the reply which states that "It is working at its best at these temperatures (Circa110C) cannot be true. What it means is that the VCU is working at its "locking" temperature all the time.
    I would argue that, in normal driving, the VCU should hardly ever reach that temperature and, if it does, then there is a major problem somewhere, as the only reason it should get to that temperature is if there is significant shear forces within the VCU - ie major "slippage" between input and output shafts.
     
  6. adamgamsa

    adamgamsa New Member

    Joined:
    Nov 12, 2011
    Posts:
    33
    Likes Received:
    0
    To do the test "put into first gear". What about for automatics?
     
  7. Hippo

    Hippo Lord Hippo

    Joined:
    Nov 22, 2007
    Posts:
    42,671
    Likes Received:
    32,404
    Just lift one rear wheel. Doesn't matter what gear it's in. Doesn't matter if it's a manwell or auto. Don't forget to release handbrake un chock the front wheels.
     
  8. adamgamsa

    adamgamsa New Member

    Joined:
    Nov 12, 2011
    Posts:
    33
    Likes Received:
    0
    OK, will do. Thanks for that.
     
  9. TRXnMe

    TRXnMe Active Member

    Joined:
    Jan 21, 2012
    Posts:
    476
    Likes Received:
    3
    Location:
    Newport, Gwent
    Very useful. Thanks.
     
  10. opking

    opking New Member

    Joined:
    Jan 13, 2013
    Posts:
    8
    Likes Received:
    0
    Location:
    Exeter
    so how do i test my vcu and if the car is on the mud the front wheels just spin and the back sit still with no drive i am guessing the its the vcu but how do i know hope spmeone can help ???
     
  11. The Mad Hat Man

    The Mad Hat Man Well-Known Member LZIR Despatch Agent

    Joined:
    Sep 11, 2005
    Posts:
    83,059
    Likes Received:
    8,728
    Location:
    Embasinga stocæ
    Read this thread!
    By checking it :rolleyes: :doh:!
    If that's what happens yu def only have 2wd.
     
  12. The Mad Hat Man

    The Mad Hat Man Well-Known Member LZIR Despatch Agent

    Joined:
    Sep 11, 2005
    Posts:
    83,059
    Likes Received:
    8,728
    Location:
    Embasinga stocæ
    Austen - yu is wanted on another fred :).
     
  13. austen

    austen Active Member

    Joined:
    Sep 21, 2007
    Posts:
    455
    Likes Received:
    4
    Location:
    Worcestershire/Shropshire Border
  14. dj-

    dj- New Member

    Joined:
    Feb 1, 2010
    Posts:
    8
    Likes Received:
    0
    Thanks this has been a helpfull thread (so far anyway )
    Just done your breaker bar test on a 53 plate td4 with 130000 miles , probably a good half of those miles been don off the tar , never had vcu changed .With a 3 foot bar and my 10 stone I can turn the wheel but its tough ( first attempt saw the front wheel turn )
    I take it from this a i need a new vcu and fairly sharp ish ??

    Thanks
     
  15. jtq4u

    jtq4u Member

    Joined:
    Oct 13, 2013
    Posts:
    34
    Likes Received:
    4
    I think I am the first person to have published the results on a brand new genuine vcu. 34 seconds.

    for the one we took off the car (at 68k, 12 years) it was 46 seconds. Test to be done on cold car. At this reading you get a slightly worse reverse on full lock, though even on a brand new genuine one there appears to still be a slight presence.. only non-genuine ones are loose enough to completely lose this.

    NEW: Freelander vcu viscous coupling test (freshly fitted genuine unit) - YouTube
    OLD: https://www.youtube.com/watch?v=8j_ERzLbdi8

    Kind regards

    James
     
  16. stig41345

    stig41345 New Member

    Joined:
    Dec 4, 2013
    Posts:
    4
    Likes Received:
    0
    Location:
    Ingleton, Yorkshire Dales
    mine is a '54 plate td4 with 109K on the clock and has the original vcu. It does quite a lot of general farm work and when sometimes when backing a trailer it starts to smell - is this the vcu heating up? when I get chance I will do the torque test and post the results
     
  17. Bromsgrove Defender

    Bromsgrove Defender Well-Known Member

    Joined:
    Nov 21, 2007
    Posts:
    5,759
    Likes Received:
    17
    Location:
    Out to lunch
    So tempting :rolleyes: :D

    I would think it's more likely to be your clutch ;)

    Pop along to the introduce yourself bit ;) :D
     
  18. AlexisWolf

    AlexisWolf New Member

    Joined:
    Sep 11, 2014
    Posts:
    1
    Likes Received:
    0
    Location:
    Harlech, Gwynedd.
    There's no need for a blanking plate as all you need to do is unbolt the CV joint from the IRD (6 Torx bolts).
     
  19. Arctic2

    Arctic2 Well-Known Member

    Joined:
    Oct 2, 2014
    Posts:
    1,924
    Likes Received:
    427
    Location:
    Westmidlands
    Most interesting thread I yet have to do this test, even though i have paper work saying that the VCU was replaced not so long back, but I also have paper work saying that an oil change had been done the day I picked the car up and found out it had not ? so a test is on the cards for sure.
     
  20. aljez

    aljez Member

    Joined:
    Dec 23, 2014
    Posts:
    14
    Likes Received:
    3
    I have just been looking at a 1999 freelander for my son,done the reverse on full lock test and there did not appear to be a any resistance but the left rear wheel on a full left hand lock seemed to slip slightly once or twice and going forward on a full right hand lock the front right did the same,can anyone tell me if this is normal.I've owned a 1989 90 td for the last 21 yrs so I have little experience of new fangled tech. like vcu,s thank goodness.New member in Portugal.
     
< Previous Thread | Next Thread >