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Tyre wear ?
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#1: Tyre wear ? Author: 206Info_SW_Scots, Location: Scotland PostPosted: Wed Apr 16, 2014 10:01 am
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Anyone know what's causing this front tyre wear ?

 

20140416_094110_resized.jpg by Nick_Scots, on Flickr
#2: Re: Tyre wear ? Author: macca1411, Location: Westhoughton, Lancashire PostPosted: Wed Apr 16, 2014 10:21 am
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Looks like the tracking is out.

 

Last edited by macca1411 on Wed Apr 16, 2014 10:26 am; edited 1 time in total
#3: Re: Tyre wear ? Author: 206Info_SW_Scots, Location: Scotland PostPosted: Wed Apr 16, 2014 10:21 am
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That's what I thought. Hit a bad pothole a few weeks back.
#4: Re: Tyre wear ? Author: macca1411, Location: Westhoughton, Lancashire PostPosted: Wed Apr 16, 2014 10:29 am
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Looking at the depth markers, the tyre was due for replacing anyway.
Get the garage that fit your new tyres to do the tracking at the same time. How bad is the other tyre?
#5: Re: Tyre wear ? Author: 206Info_SW_Scots, Location: Scotland PostPosted: Wed Apr 16, 2014 10:44 am
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Yes tyres getting replaced but obviously want to avoid new one wearing.

Other tyre is fine, pothole me thinks.
#6: Re: Tyre wear ? Author: E5GDM, Location: Essex PostPosted: Thu Apr 17, 2014 12:01 am
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Toeing out.
#7: Re: Tyre wear ? Author: kandlbarrett, Location: Swindon PostPosted: Thu Apr 17, 2014 12:26 pm
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No - it is excessive toe in. Toe in ruins inside edge. Toe out ruins outside edge.

Toe is normally measured in minutes. 1 minute is 1/60 of a degree.
10 minutes of toe is 10/60 of a degree of your wheels pointing out.
BUT most (all) cars now have a negative toe number eg -10 (-10/60 of a degree) which, being negative, is 10/60 of a degree of your wheel pointing in.
While I have used 10 minutes that would be a large number for toe. Typical toe for a front wheel drive is in the range from -2 minutes to -7 minutes per side or between -4 and -14 minutes "total" toe.

Also get the front suspension checked for damage or wear.
#8: Re: Tyre wear ? Author: kandlbarrett, Location: Swindon PostPosted: Thu Apr 17, 2014 12:32 pm
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Actually looking at the tyre in detail the outside edge is worn more than the centre. So it may have started off toeing out slightly then the damage from the pot hole caused the inside edge wear.

Or it could have been run slightly under inflated and then the damage from the pot hole caused the inside edge wear.
#9: Re: Tyre wear ? Author: 206Info_SW_Scots, Location: Scotland PostPosted: Thu Apr 17, 2014 1:05 pm
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kandlbarrett,

Thanks.
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