Calgary Jeep Association
4x4 Related Groups => Tech Talk => Topic started by: shibby on April 04, 2007, 06:54:44 PM
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I got the wobbles. I posted on this before, but it seemed to disapear.
History on vehicle:
2003 TJ Sport, bought in dec at 54K, don't know if it was ever offroaded before I got it, but it appears to have been a mall crawler. Had the DW about a week ago, 2 weeks before that, I had installed a set of OME 2 inch springs, new shocks and 32 inch BFG ATs. Rims are stock backspacing. Everything else is stock.
The dw nearly sent me into the ditch at 90km/h on 16th ave. I figured that since I had lifted it I should go and get it aligned as well as it's scheduled servicing, also told them about the wobble and they were going to look into this as well. (remind me to do my own Diff fluid change instead of letting the dealership do this as part of the scheduled maintenance. Can't believe they charged me $299 to do it)
They did the alignment, Toe was pretty out, so they brought it in to 0.15 degrees for each front tire. They left the caster at what it was originally 6.1 degrees for the left and 5.7 degrees for the right. (specs say min and max should be 6 and 8 degrees, not sure why they didn't set these to the mid level, nor why they aren't matched).
As for the wobble issue, they found that the steering stabalizer was shot. they replaced it under warrenty and said it all tested out good now. LOL... my arse.
On the way home I take it on Deerfoot and as soon as I get just above 80 the front end starts wobbling. Granted the stabalizer is keeping it mostly under control so I'm not all over the road, but the shaking is very pronounced. As long as I keep it below 80 it seems to drive fine, but comes back around 80-85 everytime now.
I've done a lot a reading to see what I should be looking at as the cause. Some have had luck with setting the camber at a higher angle. Others find that front Trackbar/bushings are to blame or some other steering components. I even read through the Flame war between Bnine and Brian/Blue from august (quite entertaining :lol: )
Any suggestions on what to check?
Is it possible to change the bushings on the front track bar?
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Very interesting. First of all a vehicle requires more positive caster on the right hand side due to the crown of a road as the right hand shoulder is usually lower. This allows a vehicle to track straight with the least amount of input from the steering wheel. Have your new tires road force balanced as I've seen new tires throw over 100 lbs of rotating force at speed limit. You may also have a broken belt in a tire and or amplified by a bad joint. I would like to believe that a quality tire shop should be able to help you. All larger tires in my opinion used on the street should be road force balanced. Short of this drive line angles. Just my 2 cents.
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Tires were picked up used, and were already balanced, no vibes noticed at any speed untill that first time the DW hit. And now, no noticable vibes untill the magic 80km/h
So doubt it's the tires that are at fault.
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wobble in two wheel drive and four wheeldrive
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In both 2 wheel and 4 wheel drive, though it doesn't seem as bad in 4 wheel.
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Well I found what was causing my shimmy up front. after some thinking I realized that part of the servicing it went through was to rotate the tires.
I rotated them back and guess what... no wobble.
Guess I have a badly balanced tire... LOL
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Go to fountain tire truck center on Blackfoot just on the north side of Glenmore. My buddy is in sales their and he road force balances my tires and can also find problems this way.