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Old 28th August 2021, 09:22   #1
pletevl
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Default Front tyre wear

Hi all.
What would cause my front left tyre to wear on the inner edge and my front right to wear on the outer edge on my 2005 cdti on 17 inch wheels?

Thanks

Pete.
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Old 28th August 2021, 09:30   #2
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Tracking out or worn suspension/joints.
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Old 28th August 2021, 10:11   #3
pletevl
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All the front suspension is nice and tight, nothing is worn.
I always thought that when the tracking is out, they either both wear on the inside, or both wear on the outside. Not one of each.
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Old 28th August 2021, 17:30   #4
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Quote:
Originally Posted by pletevl View Post
All the front suspension is nice and tight, nothing is worn.
I always thought that when the tracking is out, they either both wear on the inside, or both wear on the outside. Not one of each.
I would say whole 4 wheel alignment needed, caster/camber toe etc . If the back is out it can make the car run slightly sideways which could give the wear you are experiencing,
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Old 29th August 2021, 06:31   #5
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Tracking is independently adjustable on each of the front wheels so both can be out relatively to the rears or vice versa.

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Old 29th August 2021, 11:25   #6
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Agreed on the rear wheel tracking being the likely culprit. The thrust angle is the first thing any tracking session must check. This is adjusted through the rear wheel toe settings. That done, the fronts are then set against the rears. This prevents 'crabbing' and the sort of front tyre wear you describe.
EDIT: This diagram shows how the rears control front tyre wear by forcing the car to crab off-line.



These rear toes put the thrust angle out of spec.

TC

Last edited by T-Cut; 29th August 2021 at 11:55..
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Old 29th August 2021, 21:40   #7
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Quote:
Originally Posted by T-Cut View Post
Agreed on the rear wheel tracking being the likely culprit. The thrust angle is the first thing any tracking session must check. This is adjusted through the rear wheel toe settings. That done, the fronts are then set against the rears. This prevents 'crabbing' and the sort of front tyre wear you describe.
EDIT: This diagram shows how the rears control front tyre wear by forcing the car to crab off-line.



These rear toes put the thrust angle out of spec.

TC
No diagram. Just a No-Entry sign.----
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Old 30th August 2021, 14:52   #8
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here's a pic, sorry about the size !
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Old 31st August 2021, 11:51   #9
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Is this any better?



Ah, you fixed it.

Last edited by T-Cut; 1st September 2021 at 15:25..
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Old 1st September 2021, 16:45   #10
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Quote:
Originally Posted by T-Cut View Post
Is this any better?



Ah, you fixed it.
All I got was---------[QUOTE=T-Cut;2897933]Is this any better?



--All very odd.
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