lots of wear on side of tyre

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citronut
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Post by citronut »

yes trackingout will allways wear both tyrers exactly the same amount,because if it was out on one side when your driving in a strait line it equals it out half the distence each side all be it just a fraction of a mill,this is why its called towing out or in regards malcolm
Twiss
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Post by Twiss »

Looks like I am going to be drawing lines tomorrow and see whats going on
Thanks for the help so far
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AndersDK
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Post by AndersDK »

While on the subject ... (sorry guys [:I])
This late evening while re-fitting front wheels on Son-in-law's BX - we were both scared by suddenly being aware of heavy INNER edge wear on both front tyres.
I immediately ordered him to wind out both tie rods 1 full turn on the threads - explaining/guiding him the work.
The car is driving in the correct height - is a N/A diesel (bit guttless) - thus driven very relaxed. It's NOT used for everyday commuting - but mainly long weekend trips (he is a uni-student).
Anyone got experience to how much 2 full turns (in total) out on tie rod threads would do in final toe in change ?
Must be possible to etimate from thread size, tie rod point etc. Hmmm...
jeremy
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Post by jeremy »

Anders
For many years I have used an extremely cheap and accurate tracking gauge which is simply 2 cranked lengths of square alloy bar fitted into a square tube with a pointer and a scale. What you do is measure the distance betwen the internal tyre walls, making the adjustments to get the reading at the end with the scale. before I got hydraulic Citroens I used to park the car over a drain gulley in a car park behind my house which gives me a bit more room to get underneath without having to raise the car but I've now found I can use it on the BX from one side.
I have also done the BX using blocks of wood. I used 2 lengths of 4inch by 2 inch (because I had some and put 2 pads on each so tha when they were placed by the tyre they touched the wall and avoided the bulge. I then simply measured the distances with a steel tape measure and got sensible answers. In fact the tyres then wore flat so I must have got it right.
jeremy
citronut
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Post by citronut »

you should not do this check from tyre wall as theyv are uneven,you should check this from wheel rim edge you will get fare more acurat mesurment regards malcolm
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AndersDK
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Post by AndersDK »

Have you forgotten your basics Malcolm [;)]
Mark up the measuring point with chalk on the tyrewall - then roll the car 180deg tyre turn either direction - still on known level ground of course.
Does not matter then with uneven tyrewalls (or rim edges [8]) as it still is the same ref point. But the ref point also now has exactly moved by the toe setting - in the horizontal plane.
Yeah I know J [8D]
Make up a large vernier-gauge like tool - then gauge inner walls of tyres - as depicted in my comment to malcolm above. Trouble is my garage is blocked by lawn mowers and general mess [:I] - so dont have any level workground near me [8)]
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