[malim]

How do you know if the rim is bent ?? The rims that i got from someone were used but seemed fine without any visible damage.

I went to mechanic, he slapped on my snows and of he went to balance them. When he was doing it he told me two of rims are shot, but he still balanced them and let me go.
I obviously experienced the vibration at 80-100 km/h vibration due to improper balancing.

Can he balance ? His machine sucks or the rims are really bent ?
I remember on those two rims the machine displayed high weight numbers:

Rim 1
Right 90g - left ~50 or something

Rim2
Right 100g - left ~60g or something

So are the rims [][][][][][]ed causing vibrations or he can't balance/balancing machine sucks.

Now the main question. From experience what is the allowed resonable weight ?

Tire specialists. Chime in. Share your knowledge. [loveff]

 

[TheJesterRace27]

did they zero out or did they not balance perfectly... i know ive balanced tires that were extremely bent before and they came out good but others are just too shot there's no hope.

 

[malim]

They came out as zeros. I've seen it myself.

 

[rnap_83]

I mount and balance my own tires and I have balanced wheels with small dents or dings that are visible and they have been fine. They didn't take many wheel weights and they rode fine on the vehicle. Something sounds funny here? I would get a second opinion from another place for sure.

 

[Geezer]

In theory, a bent rim is well...just bent. It doesn't affect the balance per say but it sure affects run out (wobble) and no amount of weight will compensate for the bend. I suggest you take them to someone who has a Hunter 9700 balancer. These will confirm the run out in addition to several other balance characteristics.

Even a slightly bent wheel is visible to the eye. Put the culprits on the back end and spin them while the rear of the car is on jack stands. Kneel directly behind each wheel and focus on the edge of the rim (not the tire). If its out of whack you'll see it.

 

[metallicnotazx5]

3xpost

 

[malim]

I still didn't fix my problem yet. The guy told me i had bad rims ( i bought them used). Went out and bought 4 new rims. He takes the tires of old rims and puts on new ones and the same thing happens. Machine is displaying big weights over 3 ounces.

Now he tells me it's my winter tires. I bought them new by the way. Good Year Ultra GRIP. So what he did is put that old rim that he told me was bad on the machine and it is perfectly normal. Doesn't show any wobble.

I decided to go to a place where i got my tires. They took one of the rims. Checked it. It was in excellent shape. Put on the tire (one of the worst i suspected) and the machine gives numbers like 2.75 ounces on one side. The other i don't remember.

What is going on ??? Defective tires. Those douchers don't want to admit to selling me defective tires.

 

[metallicnotazx5]

Time to find a new tire guy.

Also aftermarket wheels will usually take quite a bit of weight on an older balancer.

 

[malim]

Just from what i told you guys here, what can you say ?? Defective tires ?

 

[metallicnotazx5]

Just from what i told you guys here, what can you say ?? Defective tires ?

sounds like bad wheels. also find a new mechanic.

 

[Geezer]

Just from what i told you guys here, what can you say ?? Defective tires ?

It could be a combination of both. Put the heavy side/point of a tire in the same spot as the heavy side/point of a wheel and you could need a lot of weight to balance/offset that. A good wheel tech would move the tire position a few times to see if it would take less weight meaning its a wheel and tire issue. If its the same amount of weight wherever he positions the tire then I agree the problem is the tire. He could also spin just the wheel to confirm any wheel issues. There's things they can do to confirm whether its the tires, wheels, or both. It just comes down to how much knowledge they have and whether they really want to help you. Question, is all that weight in one position on either the inside or outside of the rim or is it split between the inside and outside rim?