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Thread: Rear camber problem

  1. #1
    Regular Member mohojo's Avatar
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    Default Rear camber problem

    I have a 2004 Holden Vectra CDXi and I had a rear wheel alignment done. The tyre place was unable to properly adjust the left rear camber because the limit of the adjustment was reached. The left rear wheel camber was sitting at -2.79 degrees and now it's at -2.08 degrees. They reckon that it should be no more than -1.65 degrees. They suggested that I take the vehicle to a suspension specialist to investigate the problem.

    I was wondering if anyone knows what this problem could be caused by? A worn out suspension component?

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    Common problem is the rear upper control arm bushes, lots of posts on the forum about these. Jack the rear wheel up and check for wear with your hands at 6 & 12 o' clock. There's a how to for changing these, link http://www.vectra-c.com/forum/showthread.php?t=46991

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    Regular Member mohojo's Avatar
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    Thanks Tridley. That was very helpful and Gekornro's pictures were brilliant. I will mention the possibility of a worn out rear upper control arm bush to the suspension specialists.

  4. #4
    Regular Member mohojo's Avatar
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    I got the Vectra back from the suspension specialists and they claim to have adjusted the rear camber correctly and that my tyres will now wear evenly. For some reason, unlike the tyre fitters who did the car's previous rear alignment, they claim to have found sufficient adjustment.

    Anyway, I am a bit suspicious of the suspension specialist’s work. The tyre fitters had the left rear camber set at -2.08 degrees and the right rear camber set at -1.68 degrees. Now the suspension specialists have the left rear camber set at -1.6 degrees and the right rear camber set at -2.1 degrees. It seems to me that they have just swapped the camber measurements from one side to another. All these figures come from the computer printouts that both businesses supplied to me.

    Should I be concerned? And is anyone able to tell me the recommended rear camber angle for a CDXi spec (which I believe is a GSi in the UK) Vectra?

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    Regular Member carl bear's Avatar
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    I will have a look at my print out from my wheel alignment. His equipment was set up for a lowered vectra (mines a 1.8 LS tho, but should be similar).
    From what i can remember its about -1.6, but i will have to check.

    My vec is on coilovers and so was lower than the equipment had settings for, but the guy adjusted the camber to be as close as possible, mine is now -2.6 (i think).

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    Regular Member Hs2300's Avatar
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    Mine's in on Tuesday for the same job. Ill post up the findings when i have them.

  7. #7
    Regular Member gtr1000's Avatar
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    Vehicle : Insignia

    Trim : Sri

    Engine : 140 Ecoflex S/S

    Year : 2013

    Default

    Quote Originally Posted by mohojo View Post
    I got the Vectra back from the suspension specialists and they claim to have adjusted the rear camber correctly and that my tyres will now wear evenly. For some reason, unlike the tyre fitters who did the car's previous rear alignment, they claim to have found sufficient adjustment.

    Anyway, I am a bit suspicious of the suspension specialist’s work. The tyre fitters had the left rear camber set at -2.08 degrees and the right rear camber set at -1.68 degrees. Now the suspension specialists have the left rear camber set at -1.6 degrees and the right rear camber set at -2.1 degrees. It seems to me that they have just swapped the camber measurements from one side to another. All these figures come from the computer printouts that both businesses supplied to me.

    Should I be concerned? And is anyone able to tell me the recommended rear camber angle for a CDXi spec (which I believe is a GSi in the UK) Vectra?
    These are the finished results from the full global geometry check on my 2002 GSi:

    Left & right rear, -2 deg, +/- 0 deg 35'
    Cross 0 deg, +/- 0 deg 35'

    I can't scan all my data (camber, setback, toe, offset, caster etc..) or take a decent photo of the sheet but would be able to fax it. PM me if you want with your fax no.

    HTH

  8. #8
    Regular Member mohojo's Avatar
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    Default

    Thanks to everyone that has posted to this thread. My saga continues….

    A few days ago I had new tyres fitted to the front and the old front tyres put on the rear. I showed the tyre place the computer print-out from the suspension specialist and the tyre place said that the settings were not right. Anyway, to cut a long story short, the tyre place did another wheel alignment (front and rear) and ended up setting the rear camber to -2.4 degrees on both sides. Their opinion was that camber must be equal from side to side.

    Anyway, while car is handling well, a thumping/knocking noise is now coming from the rear end when I go over bumps. I think that the inside walls of the rear tyres must be hitting something due to the excessive camber. I will be taking the car back.

  9. #9
    Regular Member carl bear's Avatar
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    Default

    the thumping/knocking noise could be the upper arm bushes these are a common fault when theres knockin on the rear.

    Keep us updated.

    sorry i havent uploaded my printout, i cant find it.

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    Default

    In my case, the sport suspension reference values are from -2°22' to -1°52' for rear camber



    ..and a free finnish lession included

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