The symptoms of a car that is out of alignment are:
- Uneven or rapid tire wear
- Pulling or drifting away from a straight line
- Wandering on a straight level road
- Spokes of the steering wheel off to one side while driving on a straight and level road.
The symptoms of a wheel that is out of balance are:
- Vibration in the steering wheel at certain highway speeds.
- Vibration in the seat or floorboard at certain highway speeds.
- Scalloped or cupped wear pattern on the tires
Wheel Balance: Out-of-balance tires will cause a car to vibrate at certain speeds, usually between 50 and 70 mph. A tire is out of balance when one section of the tire is heavier than the others. One ounce of imbalance on a front tire is enough to cause a noticeable vibration in the steering wheel at about 60 mph. To balance a wheel, the technician will mount it on a balancing machine which spins the wheel to locate the heavier part. He will then compensate for the heavy part by attaching a lead weight on the opposite side. Many people are pleasantly surprised at how smooth their car drives after balancing all four wheels.
Most high quality tires will hold their balance fairly well and go out of balance very gradually. If you notice a vibration that wasn't there the day before, it is possible that one of the lead balancing weights fell off. If you feel the vibration mostly in the steering wheel, the problem is most likely in a front wheel. If the vibration is mostly in the seat, the problem is probably in the rear.
For those of you who are very sensitive about vibrations and your can't seem to get that last bit of vibration out, check to see if you have locking wheel lugs. Some locking lugs are as much as 1.5 ounces heavier than the other lug nuts which translates to about 1/2 ounce at the wheel rim. Try putting a 1/2 ounce weight opposite the locking lug and see if it helps.
Paham dh kan? OK, berbalik pd keta gua tu plak. Gua saja nk cube since gua tgk pekerja kebanyakannya berpengalaman. Gua kasi lu org layan gambar2 yg gua snap. Kalau kedai yg baik, mmg gua akan kongsi utk area2 yg berdekatan.
Kebiasaannya utk kreta2 jenis old school mcm gua, bile sampai 1 tahap buat balacing xblh gak dpt perfect, dia akan buat 1lg dipanggil "onwheel balancing" dimana sebijik mesin akan dia pasang pd tayar don keta, dan dia akan letak la pemberat&kasi pusing tayar kita tu sampai maksimum. Keputusannya, gua puas hati dgn kerja2 bengkel ni. Lokasi? Puchong. Blh tgk map&gambar..Chiow!!