Flying Pen
I have a 2001 Outback wagon well over 285k. The steering wheel wobbles at low speeds (0-40 km/h is worst), but diminishes at higher speed (60-80 km/h), and is all but gone at highway speed. Also, I had an alignment done at 275k, but the steering wheel seems to be drifting back to the right in order to hold a straight line. I'm suspecting a tie rod, though I'm not sure if that's the case or if it can even cause the wobbling. Thoughts?
Answer
A low speed wobble is usually a bad tire.(or severely bent rim)
A tie rod won't cause a wobble and a bad tire won't be seen by the alignment machine when doing an alignment. However, the alignment tech would have checked the front end parts before doing the alignment.
Have the tires checked. Have them rotated and see if the wobble and pull go's away. If so you need some tires.
A low speed wobble is usually a bad tire.(or severely bent rim)
A tie rod won't cause a wobble and a bad tire won't be seen by the alignment machine when doing an alignment. However, the alignment tech would have checked the front end parts before doing the alignment.
Have the tires checked. Have them rotated and see if the wobble and pull go's away. If so you need some tires.
Does the earth wobble when rotating?
aap1970
If so, what causes this?
Answer
The Earth undergoes many forms of motion; one of these is called precession, where the axis of the Earth changes orientation with a period of 26,000 years. Superimposed on this precession is a smaller wobble called nutation which occurs every 18.6 years.
Precession arises from the torque created by the gravitational pull of the sun and moon acting on the equatorial bulges of the earth. Because the Earth rotates, the Earth is not a perfect sphere, and the gravity of the sun and moon cause a slight twisting force on the slightly non spherical earth.
The gravitational forces of the other planets generate a smaller torque on the Earth, and this smaller torque causes another wobble in the position of the earth's rotation axis; this wobble has a period of 71,000 years.
The Earth undergoes many forms of motion; one of these is called precession, where the axis of the Earth changes orientation with a period of 26,000 years. Superimposed on this precession is a smaller wobble called nutation which occurs every 18.6 years.
Precession arises from the torque created by the gravitational pull of the sun and moon acting on the equatorial bulges of the earth. Because the Earth rotates, the Earth is not a perfect sphere, and the gravity of the sun and moon cause a slight twisting force on the slightly non spherical earth.
The gravitational forces of the other planets generate a smaller torque on the Earth, and this smaller torque causes another wobble in the position of the earth's rotation axis; this wobble has a period of 71,000 years.
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