Originally posted by Bear63
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The section of freeway I am testing the vehicle on is about 5km long, then returning on the other side. One side is known to be excellent for testing vehicles on as it is flat and smooth.
The wheels are fitted with fingers and they I believe they spin the rim to enable them to match mount the tyre. I noticed on my Hilux (same tyres) that all the yellow dots are very close to the valve stems. No viabrations with those tyres. On the Prado the yellow dots on 3 tyres are a long way from the valve stems. I note Yokohama have a recommendation for fitting:
http://www.yokohamatire.com/tires_10...atch_mounting/
This basically states the uniformity method - the red dot should be aligned on the wheel indicator mark (if there is one) which indicates the point of minimum radial run out.
Where the wheel does not have an indicator they recommend the weight match mounting method - yellow mark on the tyre, indicating the point of lightest weight, should be aligned with the valve stem on the wheel assembly, which represents the heaviest weight point of the wheel assembly. It states after doing this then the tyre / wheel assembly can be balanced.
On my Prado my yellow dots are far from my valve stems on 3 tyres. Maybe this is the problem?
Any comments would be appreciated, as I feel your advice teaching me very much, it is a shame I need to learn this.
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