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General front end alignment question
Ok first of all I know this is hard for allot of people to swallow but
the car in question is a front wheel drive 1987 Yugo. If your curious about my project(s) then check out my webpage. http://users.chartertn.net/jseabolt/ Yesterday I took the car to the tire store to get new rims and a front end alignment. But they tell me there is too much play in the front end and an alignment job would be useless. I was a bit awestruck considering I went to the trouble of installing new wheel bearings, control arms and swaybar bushings. I didn't just throw this car together. The play is really minimal. It's so minimal I can't even measure it. I'm having to guess on this one. If I grab the wheel and move it, the edge of the tire moved about 1/8". The passenger side moves about 1/16". I personally think the alignment shop is being anal about this. They are telling me there should be no play whatsoever. If there was excessive front end play looks to me that it would show up while driving down the road. At 70 mph, there is no front end shake whatsoever. The steering wheel doesn't shake at all. I lifted the front end off the groundm, pulled the wheel and brake rotor off and tried moving some things. I can't really tell where it's coming from. But I seem to think it's within the wheel bearings. This is not the tapered style bearing but a one piece sealled unit. Then the CV joint goes through it and it secured with an axle nut torqued to 159 ft lbs. This may be typical but I have never really worked on a front wheel drive car before so this is new to me. Just to see how my front end play my Fiat Spider has, I lifted the front end off the ground and I got just as much if not more play on it. I installed new wheel bearings about 10,000 miles ago, 2000 miles ago I installed new tie-rods, center link and the alignment shop said it was fine, realigned it and it tracks straight. I had a buddy come over to get his opinion. He couldn't tell where the play was coming from either. But we came to the conclusion that if we put a bit more torque on the axle nut it might snug it up some more. When I originally torqued the axle nuts, I only put 150 ft lbs on it because that was as high as my torque wrench goes. The shop manual says 159 ft lbs. He turned the adjustment knob on the wrench an additional 10 ft lbs. I don't know how accurate doing this is but it made a difference. The play now is so minimal, I'm guessing the edge of the tire moves about 1/16". This is up and down. With the steering wheel locked, there is more play in the steering rack. Not that the rack is worn out but the fact that the locking mechanism in the ignition switch is not preventing the steering from locking dead tight. I'm going to check with some mechanics at the plant I work at and see if they have a torque wrench that goes past 150 ft lbs just to make absolutely sure I have 159 ft lbs on these axle nuts. So the question is, how much play is acceptable on a front wheel drive? Should the hub be so tight that it doesn't move at all? I'm afraid to overtorque these axle nuts for fear I'm going to damage something. Like I said the wheel bearings are not the tapered type like on a RWD car that come apart. This bearing is a sealed unit that is pressed into the backside of the hub so I really don't see how even torquing the nuts further would even make a difference. Perhaps I did not press the bearings into the hub all the way and the extra torque applied to the nuts is pulling the bearing toward me taking up the slack. But I'm almost sure I did. Once I make absoltuley sure I've got 159 ft lbs on the axle nuts, I'm going back to the shop and see if they are satisfied and if not I'm going to take it another shop I trust and see if they are satisified. |
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