Noise in Tires
 

I had Futura's Z rated at front and Kumo's V rated in the back. John got his new wheels, so he got new Yokohomas on his new wheels. He was trashing his Yokohomas which still had good amount of treads left on it. On my SVX, The profile of Futura tires was little bigger, so I thought instead of those Futuras, I can put John's Yokohomas. So I got John's tires and put them in front and I had V rated in the back. After I got out of the shop, I heard some noise in front right tire. I talked to John and he said that it might be tire or overtorque of Lug Nuts. So I went to a shop yesterday and rotated the tires and torqued my tires to 80foot pounds. Now I have V rated at front and Yokohomas in the rear, but noise is still there in right front tire. What can be the problem?????????/

You might want to measure the circumference of the tires. If they are off by more than 1/4 inch it will cause binding due to the tranny sensing different speeds between front and rear. Try inserting the FWD fuse and see if the noise goes away.

okay, I will try that tomorrow.

With an AWD SVX, it is really a bad idea to put in different size/brand/spec tires. They wear differently and prolong use can be harmful to your differentials. On the FWDs, one can have 16s in the front and 17s in the back (but why?) but 16s on one side and 17s on the other is a NO!

Same concept with the different brand tires on the AWD svx. you want to keep the same brand.

Lwin

Don't mix your tires. You wouldn't want to invoke the ghost of "eddycat". :D :rolleyes:

That too... but Eddy does have a valid point here. I have mixed and matched tires before and some brand tires do wear out faster then the others. It is best to keep the same brand tires.

I will most likely be switching tires at the end of summer. I am going to go 17" and I am going to go buy 5 of them. 4 on the car and one extra in the trunk. I hate the donut and there is no way I am going to mix 16s and 17s.

Lwin

I told Ravi to check his tire pressure. When mounting the tires, the shop usually puts 36psi in at the beginning and then reduces them to whatever you want. I had them reduce mine to 32 all around.

They probably didn't reduce his air pressure after his tires were mounted. His situation was quite confusing (mounting old tires on different rims, moving them to different locations, mounting a different spare from the trunk, directional tires, directional wheels, etc) It was an oversight not to ask him what pressure he wanted.

Two things to think about here Lwin.

1) Will a full size spare fit in the well?

2) The key thing that affects the differential is overall diameter of the tire, not the wheel diameter.

You want to keep both axles rotating the same speed. You can have any number of tire sizes with the same diameter. Take a look at the TireRack website under any tires detailed specs. They call out the diameters. Basically, our stock 225/50-16 tire has the same overall diameter as a 225/45-17. Therefore, you will not need to spend the extra dollars on a fifth wheel and tire unless that new job of yours has left you with more $$$$ than you know what to do with :D

The reason why they stipulate using the same tire size and manufacturer at all four positions is to ensure the same overall diameter. What most of you haven't taken into consideration is that while mixed tires may be the same diameter when off the ground, all bets are off when the weight is on. Also consider the fact that with different constructions, materials and tread weights each tire will 'grow' differently at speed due to centrifugal force.

You have bought a vehicle that is capable of excellent ride and handling, why compromise that to save a few bucks? If you can't afford to maintain something properly then maybe you need to shift to a less expensive vehicle. I'm not trying to upset anyone, I'm just spitting out the truth.

Beav