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Dangerous tyre wear!
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 4177

England 2005 Discovery 3 TDV6 HSE Auto Baltic BlueDiscovery 3
Dangerous tyre wear!

Just got back from hols, 1000 miles in two weeks towing a 1.8 ton single axle
caravan with 4 adults, I removed and checked the tyres before I set off, cleaned and adjusted rear brake shoes and measured tread depth (minimum 3mm, even across tyres) and checked pressure (46psi in rears), I have a new set ready to fit for winter and was considering fitting them.
Yesterday I had the new tyres fitted and was shocked to find the wear/damage on the rear tyres, this is on the inner shoulder almost on the wall of both rear tyres, what can cause tyres to wear like this?- there is no play in the bearings no excessive movement in the bushes, car drives and handles very good, no bumps or noise from rear.










 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #186218126th Sep 2017 9:38 pm
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Mr.Tom
 


Member Since: 01 Jun 2014
Location: St Neots
Posts: 1597

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

That’s shocking Neutral

I used to get this on a Mondeo at the front, but from too much torque.

I would suggest over inflation, 46 sounds too high, or from alignment, or perhaps too much nose weight on the tin tent?
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Post #186218426th Sep 2017 9:49 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 4177

England 2005 Discovery 3 TDV6 HSE Auto Baltic BlueDiscovery 3

I have been running at 46psi in the rears for months if not years and there was no sign of any damage or scrubbing before I set off, caravan loaded same as always. Damage is only on inside shoulder almost as if tyres have been rubbing on something.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #186218626th Sep 2017 9:56 pm
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Russell
 


Member Since: 23 Aug 2007
Location: Kent
Posts: 9540

United Kingdom 

That is not over inflation as that would be wear in the middle. I would say get tracking/alignment done and also get bushes and arms checked.
 MY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club 
 
Post #186218826th Sep 2017 9:56 pm
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Erea
 


Member Since: 19 Mar 2012
Location: Munster
Posts: 672

Ireland 2006 Discovery 3 TDV6 Commercial Manual Zambezi SilverDiscovery 3

I'm guessing if as you say nothing is worn that 4 wheel tracking will throw up a few red symbols. In particular I had rear camber out and it did that. Hunter 4 wheel tracking would be where I'd start.
  
Post #186218926th Sep 2017 9:57 pm
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L319
 


Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 1182

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

The only time I have seen that type of wear pattern has been when tracking inordinately out
  
Post #186219026th Sep 2017 9:58 pm
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Bobbygg
 


Member Since: 09 Nov 2016
Location: Northumberland
Posts: 60

United Kingdom 2005 Discovery 3 4.4 V8 HSE Auto Zambezi SilverDiscovery 3

I'd say it's a combination of too much negative rear camber and too much weight on them too.

If you've too much nose weight on the caravan and a loaded Disco, there'll be alot of weight on the back end, but the air bags will still level the vehicle combination off so it looks fine, whereas if it was coil sprung, you'd be able to see immediately that there was a problem

I'd look into your alignment, and check your nose weights

Rob
 D3 V8 with active rear diff  
Post #186221327th Sep 2017 5:48 am
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Navigator
 


Member Since: 17 Mar 2010
Location: Conducting yet another of the Risk Manager's dangerous experiments
Posts: 4107

Scotland 2015 Discovery 4 3.0 SDV6 SE Auto Causeway GreyDiscovery 4

My concern is that it did not show up much sooner in the daily inspection.
 Always plan ahead - it wasn't raining when Noah started building the Ark.  
Post #186225727th Sep 2017 9:38 am
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JMack
 


Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1206

Scotland 2006 Discovery 3 TDV6 Commercial Manual Java BlackDiscovery 3

Is the wear round the whole circumference of the tyre, or just half/part of it?
  
Post #186277928th Sep 2017 4:38 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 3920

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

I check lots and lots of tyres and can say when they hit 3/4mm they are on their last legs and its very very rare for them to wear even across the entire surface with such low tread remaining, so if you had 3mm even then it must be something to do with the load you were carrying which caused the tyres to run at an awkward angle which a tyre with decent tread would just shrug off but on 3mm was its death sentence.
 No Illeism here.  
Post #186280928th Sep 2017 5:42 pm
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MarkOne
 


Member Since: 23 Jul 2011
Location: County Antrim
Posts: 3257

Scotland 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

46 is way to much imo.
  
Post #186281228th Sep 2017 5:47 pm
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Hardware17
 


Member Since: 28 Jun 2016
Location: Manchester
Posts: 1684

England 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

Navigator wrote:
My concern is that it did not show up much sooner in the daily inspection.


yeah ... we all do that. Whistle
  
Post #186282128th Sep 2017 6:19 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 4177

England 2005 Discovery 3 TDV6 HSE Auto Baltic BlueDiscovery 3

JMack wrote:
Is the wear round the whole circumference of the tyre, or just half/part of it?


Yes, almost as if they have been rubbing on something, which was my first thought, they where removed and checked one week before the journey, wear was even across the tread at around 3mm.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #186284328th Sep 2017 6:44 pm
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JMack
 


Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1206

Scotland 2006 Discovery 3 TDV6 Commercial Manual Java BlackDiscovery 3

Yes, all the way round?

I had strange wear on one rear tyre where it was less than half the circumference that was 'grooved' and the first I knew about it was a flat tyre one morning.

Was very surprised to see the strange wear and the tyre fitter could only think it was a fault in the tyre carcass. Rear suspension arms atc were not very old and recent 4-wheel-alignment.
  
Post #186286328th Sep 2017 7:18 pm
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