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NCT imbalance fail

  • 19-12-2020 6:20pm
    #1
    Peppa Cig
    Registered Users, Registered Users 2 Posts: 1,013 ✭✭✭


    Car failed on front imbalance at 34%

    Got 2 new shocks fitted today.

    Retested and failed again at 36%!

    Thoughts?

    Thanks


Comments

  • #2
    blackbox
    Registered Users, Registered Users 2 Posts: 4,709 ✭✭✭blackbox


    Peppa Cig wrote: »
    Car failed on front imbalance at 34%

    Got 2 new shocks fitted today.

    Retested and failed again at 36%!

    Thoughts?

    Thanks

    Are you sure it wasn't brake imbalance?


  • #3
    Mooretaxi
    Registered Users, Registered Users 2 Posts: 48 ✭Mooretaxi


    Peppa Cig wrote: »
    Car failed on front imbalance at 34%

    Got 2 new shocks fitted today.

    Retested and failed again at 36%!

    Thoughts?

    Thanks

    Uneven tyre pressure


  • #4
    dkd21
    Registered Users, Registered Users 2 Posts: 117 ✭✭dkd21


    What car is it ?


  • #5
    CoBo55
    Registered Users, Registered Users 2 Posts: 9,620 ✭✭✭CoBo55


    Seized bushes.


  • #6
    Peppa Cig
    Registered Users, Registered Users 2 Posts: 1,013 ✭✭✭Peppa Cig


    blackbox wrote: »
    Are you sure it wasn't brake imbalance?

    Yep sure


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  • #7
    Peppa Cig
    Registered Users, Registered Users 2 Posts: 1,013 ✭✭✭Peppa Cig


    Mooretaxi wrote: »
    Uneven tyre pressure

    Checked tyre pressure before retest as aware that could be an issue.


  • #8
    Peppa Cig
    Registered Users, Registered Users 2 Posts: 1,013 ✭✭✭Peppa Cig


    dkd21 wrote: »
    What car is it ?

    Renault Megane 2010


  • #9
    Dirty Nails
    Registered Users, Registered Users 2 Posts: 491 ✭✭Dirty Nails


    Peppa Cig wrote: »
    Car failed on front imbalance at 34%

    Got 2 new shocks fitted today.

    Retested and failed again at 36%!

    Thoughts?

    Thanks

    The suspension test used is absolutely ridiculous & I've heard is going to be changed following a court case. The test doesn't actually test the shock as such,it picks up an imbalance in the total suspension - ball joints,w/bone bushes,shock tops,weak spring etc so sadly it's a matter of going through it all
    now with a fine tooth comb.
    As an example,had a 407 like that-replaced shocks - failed.replaced springs next-failed. 1mm free play in a shock top swivel bearing,so it's something that irrelevant you're potentially looking for.


  • #10
    greasepalm
    Registered Users, Registered Users 2 Posts: 5,583 ✭✭✭greasepalm


    But when they raise thecar onto the lift dont they grab the bottom of the tyres and move side to side while looking for movement in bushes and joints.


  • #11
    Dirty Nails
    Registered Users, Registered Users 2 Posts: 491 ✭✭Dirty Nails


    greasepalm wrote: »
    But when they raise thecar onto the lift dont they grab the bottom of the tyres and move side to side while looking for movement in bushes and joints.


    True,but joints would want to be unbelievably loose to feel much.Thats as much a wheel bearing check as anything.


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  • #12
    CoBo55
    Registered Users, Registered Users 2 Posts: 9,620 ✭✭✭CoBo55


    Dirty Nails wrote: »
    True,but joints would want to be unbelievably loose to feel much.Thats as much a wheel bearing check as anything.

    The side slip/alignment test will show up worn ball joints.


  • #13
    barneygumble99
    Registered Users, Registered Users 2 Posts: 4,324 ✭✭✭barneygumble99


    Reality is that top shock mounts should be replaced when replacing shocks, worn top shock mounts could and do, cause suspension imbalances.


  • #14
    Peppa Cig
    Registered Users, Registered Users 2 Posts: 1,013 ✭✭✭Peppa Cig


    Just as An update to above. Got the car tested 4 months later with same shocks and it passed.

    what a load of bs.



  • #15
    Larbre34
    Registered Users, Registered Users 2 Posts: 24,719 ✭✭✭✭Larbre34


    Our second car is a 2003 runabout, not abused and not huge mileage but tired now and suffering more from being idle as anything else, so at the end of its natural life.

    Took it to my favorite independent garage on Tuesday to see what the actual list of issues were and I got

    • Brake pads worn all around, front discs needed
    • Front brake lines corroded
    • Clutch failing
    • Oil leak somewhere off the main block
    • Three new tyres needed
    • Battery mounting corroded, needs replacing
    • Underbody corrosion, bad at the rear.
    • One window switch and two binnacle bulbs not working
    • Blower directional knob not working
    • Wipers needed
    • Rear window spray broken and dripping into cabin

    Mechanic said bring it to the NCT I had booked for last night anyway, see what they actually picked up on.

    The bugger was PASSED, with only an advisory on the age of two tyres!!

    The NCT is a joke lads.



  • #16
    standardg60
    Registered Users, Registered Users 2 Posts: 5,185 ✭✭✭standardg60


    https://www.boards.ie/discussion/comment/118054768#Comment_118054768

    Maybe it's time to find a new favourite garage



  • #17
    Larbre34
    Registered Users, Registered Users 2 Posts: 24,719 ✭✭✭✭Larbre34


    None of what they told me was wrong, it was still on the lift when I called back for it and he put a flashlight on the underbody. He told me to carry on with the test as they may only pick up on a few points and just repair those, but he did say it depended on which Test Centre, which tester etc. That inconsistency can't be right.



  • #18
    standardg60
    Registered Users, Registered Users 2 Posts: 5,185 ✭✭✭standardg60


    I agree, always better to put it through and see what they spot. Everything on your list was either not applicable to the test itself or personal opinion, personally i've had the tester's opinion on brake lines overturned by the supervisor on the day, so yes it all depends on who you get.



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