Help with vibration problem

[Eek Skywalker]

Hello all,

I have done a search on this problem i have on the forums and have got a bit of information, some of which seems to contradict the other. So just wondering if anyone has experienced this/knows a fix for it. Here goes:

I took the car for a wheel alignment and balance cause i had bad vibration over 120km/hr. Guess what? It's still there. It's violent between 120-130km/h. I've noticed that at 120km/h it vibrates through the steering wheel. 130km/h, the vibration in the steering wheel is less, but the console (where the radio a/c is) shakes like hell. At 140km/h, the vibration moves to the drive shaft/rear i think. Any ideas on what this could be or how i could fix it?

Thanks in advance!

Cheers,

Eek

[hippy]

sounds like ur wheels aren't balanced, try someone else to balance it... also test the pressure of the tyres, try not to use the ones u find at the petrol stations cause they aren't very good, i find that my tyres don't seem to hold pressure very well so i have to keep pumping air in every now and them ... but yeah ... most of threads like this i've seen were fixed with proper balancing... are the tyres new??

[MattyB]

tyres might have seperated. ive had this problem before with cheap shit tyres. check the tread for any un even wear. if this is the case then get new tyres.

my car was scarey at 150 with one tyre seperating. its perfect upto 250 with the new ones.

[MotoX]

i think its an unbalanced tail shaft, on my vl (yeah its not a skyline) i had a 2 peice tailshaft, wheels were ballanced and alligned propley, coudlnt work it out, but it would be find till i did 160 and it would vibrate like hell. i replaced the center berring thinking that was ruined, didnt do anything.

my car was so bad once backing off at 240, u would think it was going to drop the box and send the engine outa its mounts.

i then got the tailshaft ballanced and everything was fine.

have you hit anything under the car? the slightest knock on a tailshaft can put it outa ballance.

[alistern]

try jacking the car up and checking for uneven tred depth, I had this problem on my car and balancing dosn't fix it. some people try shaving the uneven section, was told it was a common manufacturing flaw.