I've noticed quite a few threads over time that after rebalancing tires they still maintain a shimmy then after going to a shop with the "Hunter 9700 Road Force Analyzer", they're told they have bad tires. My question is how frequent is it to have bad tires? My Potenzas have always seemed to have a noticable wobble at 70 that goes away over 75 and doesn't appear at lower speeds. Nissan said they can't replicate the problem (at 2000 miles when I first complained) and I have just lived with it. Now I'm considering going somewhere with the Hunetr and then if it says the tires are bad going back to Nissan and asking for new treads. What do you all think?

 

on the tires 'road force' variations that a tire is bad or not. If the tire is within spec, it will advise the operator how to locate the tire on the rim so that the high spot on the tire is located above the low spot on the rim, thereby improving the balance and overall symmetry of the complete tire/wheel assembly.

If the Nissan dealer has a similar machine they can try to replicate the problem, if not, they're 'obligated' (not legally, but factually) to accept the veredict from the 9700...

 

My dealer gave me new tires and rims at 5000 miles !!!

We had Turanzos.

Now we have only a very slight shimmy at about 65,but it's gone by 70.

I think I can live with that,although if I saw MICHELINS on sale.....

 

the Hunter site has a database of Hunter 9700 machines. Not all have the optional attachment to find pull.. a basic road force unit will find most problems and out of round tires.

 

I also have a shimmy..
I've had it balenced many times and even had 2 tires replaced and its still there.
I even went to a place that had a 9700, no difference.
Does it go away after the tires have warn in a little?
Would new, softer tires help?

 

know how to use them....
Go back to the place that did your analysis and quite simple ask the tech if he used the machines' 'tire/rim matching' capability, where he measures the out-of-roundness of the rim with the little roller, reads the machine's screen that suggests where to rotate the tires on the rims to, which makes him have to deflates the tire, rotate it to the points he marked with the machine's help, then re-inflate the tires and re-run the Road Force analysis.

If he says he did not do that or looks at u funny, he does'nt know diddly how to use that machine.

In my case (see in the posts of within a day or two ago) was exactly that...the tech rotated the tires on the rims to their best recommended position and the road force as still way too high (29 and 32 lbs) and the machine then produces the diagnosis that tires are bad, replace them.

 

I watched him, he did that, he deflated and moved the tire.
He seems to know exactly what he is doing.
I've alreay had the tires replaced and it still shimmys