Tyres & Wheels Uneven tyre wear on edge of tyre. Saloons only

Discussion in '7th Generation (2003-2008) [Acura TSX]' started by Ichiban, Tuesday 15th Nov, 2011.

  1. Ichiban Founder Staff Team

    England CJ Leeds
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    This issue are seen on the 7th Generation CL7 CL9 & CN1's. You will see abnormal outer wear and feel an adverse uneven wear. To check for the symptoms get both rear tyres up and rotate the tyres with your palms across the tread to feel the uneven wear.If you also notice excessive outer edge wear then you may have to replace the upper control arms on the sub frame with a modified part.

    Honda has made design changes to improve accuracy of the upper arm on the subframe and have made a modified arm. The modified part number is 52390-SEC-305.You can get two aftermarket options one lower control arms, a set of 4 arm which give a lot room for adjustment. The top camber arms do the same job of getting camber within spec as per Honda's spec.

    TIP

    If you plan to use aftermarket suspension then use the lower control arms & for stock suspension use the top camber arms.

    For those who desired a slammed look with a camber look a combination of both will give you loads of adjustment to get your ride handling as you desire and most importantly the looks and tyre camber for your needs.

    Lower control arm look like

    Tourercustomrearcamber.


    The top camber arm look like

    RearCamberadjuster.

    When you get any of these three options fitted your saloon will require a full four wheel alignment ideally on hunter machine.

    The factory alignment specs for all 7th Generation saloon are

    Front toe-in: 0±2 mm (0±0.08 in.)

    Rear toe-in: 2±2 mm (0.08±0.08 in.)

    Turning angle:

    Inward: 38 ° 50 ′±2 °
    Outward: 31 ° 40 ′ (reference)

    Examples of 4wheel alignment on a tourer

    4wheelalignment1.

    4wheelalignment.

    the rear camber on my tourer was fixed after replacing weak dampers.
     
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  2. hondream Senior Member ★ ★ ☆ ☆ ☆

    Simon Walsall
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    excessive rear tyre inner shoulder wear

    Hi

    What causes the excessive rear tyre inner shoulder wear?
    What is the fix, and can it be done by the likes of Kwik-fitup or is it a Honda dealer job?
    What sort of costs we looking at?

    Thanks
     
  3. AccordCU2 Expert Advisor ★ ★ ★ ★ ★

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  4. Brodziu Valued Contributor ★ ★ ★ ☆ ☆

    Greg Manchester
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    Re: excessive rear tyre inner shoulder wear

    in most cases it's caused by negative camber which can't be adjusted on standard suspension, to adjust it you'll need to fit camber kit, sometimes toe out on rear axle can cause same issue, best thing is to do alignment, so you'll know where to start from.
     
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  5. Slim35 New Member Getting Started

    Re: excessive rear tyre inner shoulder wear

    It could be tired shocks causing the tyre to 'patter' under braking...or so I've been told by an experienced tyre man who replaced my rear nearside after an MOT failure. It was failed beacause tyre "has a lump, caused by seperation or partial failure of its structure". No sign of either on the tyre, just wear on inner edge.
     
  6. SpeedyGee Administrator Staff Team

    England Speedy Birmingham
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    Re: excessive rear tyre inner shoulder wear

    Inner edge wear is common on the 7th Generation saloons, as Brodziu says it's caused by negative chamber. Which needs aftermarket adjustable chamber kit then Hunter laser alignment.
     
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  7. Ichiban Founder Staff Team

    England CJ Leeds
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    Re: excessive rear tyre inner shoulder wear

    Merging this thread with an existing thread.

    Please do searches on the forum to locate such information , mods please move such thread into existing one need to stop this countless same natured threads.:Hey:
     
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  8. hondream Senior Member ★ ★ ☆ ☆ ☆

    Simon Walsall
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    Any had the upgraded rear camber arms fitted by Honda?
     
  9. Old Cruiser Senior Member ★ ★ ☆ ☆ ☆

    pete slough
    194
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    Ah , so this modified Honda part is adjustable where as the original was a fixed length, is this correct?
    Cheers Pete
     
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  10. SpeedyGee Administrator Staff Team

    England Speedy Birmingham
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    No the modified Honda part isn't adjustable it just been redesigned so that it doesn't wear out and cause a camber issue as the old part did.

    The aftermarket alternatives are adjustable.
     
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  11. Ichiban Founder Staff Team

    England CJ Leeds
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    No the modified arms has revised lengths to correct this they were not adjustable, Adjustable is only available in the aftermarket route.
     
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  12. Old Cruiser Senior Member ★ ★ ☆ ☆ ☆

    pete slough
    194
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    Thanks for clearing that up mate.
    Cheers Pete
     
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  13. hondream Senior Member ★ ★ ☆ ☆ ☆

    Simon Walsall
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    Seems like not many people have gone for the modified Honda part?

    "If you also notice excessive outer edge wear then you may have to replace the upper control arms on the sub frame with a modified part."
     
  14. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
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    I'd say that's down to the availability of aftermarket fully adjustable arms.
     
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  15. dinoc Senior Member ★ ★ ☆ ☆ ☆

    Romania Bucharest
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    Is there any part which corrects the camber for the OEM lowered Honda sport suspension(A-spec) ?
     
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  16. Ichiban Founder Staff Team

    England CJ Leeds
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    Its in the first post bud..." The modified part number is 52390-SEC-305"
     
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  17. dinoc Senior Member ★ ★ ☆ ☆ ☆

    Romania Bucharest
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    Very strange the local Honda dealer did not know about this, I have a friend with A-Spec suspension on his '07 CL9 and his tires were rode uneven (he had 2 sets of tires like that),
    but the dealer did not know what to do about this, they suggested aftermarket camber adjustment arms.

    Also strange, I have the A-Spec suspension and my camber is out of specs, but still my tires (2 sets) are fine and handling also fine, should I install those new arms as a preventive measure?

    Any of you running Honda A-spec lowered suspension, what did you do about the camber?
     
    Last edited: Sunday 24th Jul, 2016
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  18. Ichiban Founder Staff Team

    England CJ Leeds
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    There is a full blown TSB for this uneven tyre issue buddy,Majority of the people with A spec or after market coilover go down the fully adjustable lower and top camber arms.

    The revised arms from Honda are static you cannot adjust them so as the damper get weaker the camber will go out and you can't adjust it.
    These bad boys https://www.heeltoeauto.com/ingalls...-08-acura-tsx-accord-euror-cl7-cl9-38725.html