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Old 09-12-2010, 10:29 AM   #1
mikeythejew
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Member#: 141672
Join Date: Feb 2007
Vehicle:
07' wrx
Mothballed until winter

Default Went to Firestone for Hunter road force balancing with bad results

I had my wheels rebalanced at Firestone complete auto care that has a Hunter road force balancer. Original 07' WRX wheels and Dunlop SP sport signature 215/45/17 tires.

One wheel has a strip of 9, 1/4oz stick-on-weights on the inner part of the wheel. Another wheel has 7, 1/4 weights on one side.
All wheels were balanced with the weights placed on the inner part of the wheel.

I still feel a vibration at speed, but all seems well under 60MPH.
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Old 09-12-2010, 11:34 AM   #2
capsisking
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take it back
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Old 09-12-2010, 11:44 AM   #3
MNGman
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Lazy tech, take it back and have them spin the tire 180 on the rim.
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Old 09-12-2010, 12:40 PM   #4
capsisking
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why spin the tire?
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Old 09-12-2010, 01:03 PM   #5
Big-E
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The tech should spin the tire because the tire itself may be heavier on that side, thus when combined with the wheel, it ends up needing a significant amount of weights on the wheel.

So, by rotating the tire on the wheel by 180-degrees, you are effectively countering the "off-centerness" of the tire and that of the wheel with one another and so when the wheel/tire combo is then rebalanced, less weights should be needed to do so.
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Old 09-12-2010, 01:28 PM   #6
Kilo6_one
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lazy...... i used to work for firestone back in the day, honestly they are a high volume shop and dont care about details. Little things like this piss me off......
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Old 09-12-2010, 06:59 PM   #7
MNGman
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Sorry, didn't mean to offend. I used to mount tires for a living also. I would never have let a tire leave my shop with this amount of weight on one side without trying to spin the tire on the rim first.

I realize that the shop can dictate the time spent on a particular vehicle, not the tech.

One of the reasons I don't go to shops like this. Get it done and out the door as fast as possible, might not be the best, but it's fast.
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Old 09-12-2010, 08:17 PM   #8
Kilo6_one
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yeah, sadly its all about flat rate at those shops....... the tech is only paid .4 to balance all 4 tires so they are not going to go "the extra step" to do it right, atleast not for free.
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