Rosco
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| posted on 9/4/13 at 07:15 PM |
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Unusual Tyre Wear
My wife's car has recently been making some strange rumbling sounds from the rear. My initial thought was a wheel bearing problem but I had a
garage look at it and they found the wheel bearings were OK but one of the rear tyres had worn in an uneven pattern around the circumference. Every
inch or so there is high wear then low wear right around the tyre circumference. (A bit like the pastry cutter my mum uses to cut out mince pies -
though not so exagerated)
I've never seen tyre wear like that before. The garage said it was down to poor road surfaces and a poor quality tyre. I've put the
spare on and the noise has reduced but I don't think it's gone completely. It got me wondering what has caused this - maybe worn
shocks?
Any thoughts?
The car is a Toyota Celica, 60k miles on an 03 plate, so fairly old but not too many miles. The suspension is not bouncy at all and it still corners
well.
Thanks
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ian locostzx9rc2
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| posted on 9/4/13 at 07:29 PM |
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Could be wheel alignment issue poor tyre or incorrect tyre pressures happens alot these days with low profile tyres no flex in s/walls its called
tread blocking makes a noise like a worn w/bearing as said...
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b14wrc
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| posted on 9/4/13 at 07:29 PM |
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Photos mate?
I've had a Celica, the gen 6 and currently have an Auris. Never had tyre wear issues like that.
Rob
20vt powered rear engined locost
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jabs
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| posted on 9/4/13 at 07:34 PM |
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take a look at this may help
http://www.ford-trucks.com/forums/991515-identify-cause-of-uneven-tire-wear-2.html
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nick205
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| posted on 9/4/13 at 07:51 PM |
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Sounds like SAW TOOTH tyre wear to me.
Pretty well documented on the web and seems to be related to IRS cars (FWD or RWD). Generally observed on the inner edge of the tyres where the tread
blocks wear in an up/down fashion. Cheap tyres and certain tread patterns (heavily directional are said to be the worst) make it worse. Typically
the inside shoulder can be completely wrecked with 3-5mm of good tread left on the outer edge of the tyre.
It's caused by and makes the tyre skip along the road surface, hence the rumbling noise, which invariably people detect as a worn wheel
bearing.
Manufacturers and their main dealers seem comfortable with it being a "characteristic" of their vehicles. Reality (IMHO) is that they
ought to recognise that millions of tyres are being scrapped prematurely through poor design. Of course that won't happen as they've
spent £££££ on R&D and they can't possibly be wrong, can they.
[Edited on 9/4/13 by nick205]
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bashracing
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| posted on 9/4/13 at 07:52 PM |
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internal leak on shock absorber, it's quite common
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big-vee-twin
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| posted on 9/4/13 at 08:07 PM |
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Saw tooth wear not uncommon had it on my wifes
206cc and my mate on a Passat
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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ReMan
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| posted on 9/4/13 at 08:14 PM |
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Often referred to as "blocking, cupping, stepping".
Tyre choice affects it, as do common problems, but its an issue on some models
My old Saab was one of them
Pic here
[Edited on 9/4/13 by ReMan]
www.plusnine.co.uk
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rusty nuts
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| posted on 9/4/13 at 08:23 PM |
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Fairly common problem on cars with multilink rear suspension
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edsco
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| posted on 9/4/13 at 08:41 PM |
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Had exactly the same on my Mondeo estate. Rumblings from the rear......oooo errrr !! ;-) seriously same issue. Uneven tyre wear. The tyre shop
diagnosed the issue straight away after they asked me a series of questions to narrow down the possibilities. Turns out it was all down to inadequate
maintemce I.e. keeping tyre pressures at correct psi. I had exactly the same replacement tyre put on.....just some cheap Nexen 6000s, done 3 times the
mileage on this set of tyres compared to the old set with no unevenness at all. The secret, weekly or bi weekly tyre pressure checks.
Other possible causes to the unevenness I was told could be down to leaky / knackered shocks OR carrying heavy loads frequently.
edsco
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martyn1137
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| posted on 9/4/13 at 09:45 PM |
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Had similar issues wear issues also noise with my Subaru Impreza rears in the past and wife's TT suffered noise.
TT was put down to the tyres being about 6 years old and become stiff due to old age - yes like me!
Impreza as someone had in the past screwed up all the geometry, shame that as it took 2 sets of tyres to sort it.
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b14wrc
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| posted on 9/4/13 at 09:48 PM |
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Good photo.
20vt powered rear engined locost
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.jpg)
