Viberation at high speed!!!help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s141996 · 06-06-2011, 07:16 AM

Well here is the problem I drive the car past 45mph and viberation starts the higher i speed the more it viberates its coming from the rear! any idea on what is going on???

murda-c · 06-06-2011, 07:47 AM

most likely tires are flatspotted, a rim is bent, or tire is out of balance.

swap your rears for your fronts and see if the vibration follows.

Inspect the tires and wheels while you have them off.

mattack69 · 06-06-2011, 07:49 AM

Have you checked your wheels to make sure they are seated, not warped, don't have a hub-centric ring behind them when they don't need it, the lug nuts are on the whole way and torqued.. I'd start there.

Side note I seen "Viberation at high speed!!!help" and though you were stuck under a fatty, lol

s141996 · 06-06-2011, 10:07 AM

lol!!!!!!and i'll do that when i get home thanks guys!

nismo 240sx · 06-06-2011, 10:19 AM

worst case also check the weights that are on your drive shaft...

camaro379ss · 06-06-2011, 12:18 PM

most likely NOT an out of balance tire unless there's just absoluelty no weights on it whatsoever. An out of balance wheel will vibrate at a certain speed and go away at another.

Most likely causes as some have previously stated...

1. bent wheel
2. tires could have flat spots
3. Driveshaft imbalance

Most of these are quite easy to see visually.

SR240Z · 06-06-2011, 03:22 PM

Bring it by the shop, we can check all that out for you.

Very likely to be one of the things listed by camaro379ss

KiLLeR2001 · 06-06-2011, 03:30 PM

I bet its something interior related.

surge s14 · 06-06-2011, 04:45 PM

are flat spotted tires fixable?

a good burn out?

camaro379ss · 06-06-2011, 05:12 PM

Quote:

Originally Posted by surge s14

are flat spotted tires fixable?

a good burn out?

generally no. Depends on how long they sit. Sometimes you can simply drive them out so to speak.

KYjellaye · 06-15-2011, 12:46 AM

My car did the exact same thing. Once it got past 40mph it start have violent vibrations from the rear of the vehicle. It turned out that some of the bolts from the driveshaft to the diff were loose..

RentonD · 01-08-2012, 11:32 AM

Quote:

Originally Posted by KYjellaye

My car did the exact same thing. Once it got past 40mph it start have violent vibrations from the rear of the vehicle. It turned out that some of the bolts from the driveshaft to the diff were loose..

Hate to bump an old thread but thanks KYJellaye, you just saved me a ton of trouble.

06-06-2011, 07:16 AM	#1
s141996 Zilvia Junkie Join Date: Sep 2010 Location: IE Age: 38 Posts: 324 Trader Rating: (6) Feedback Score: 6 reviews	Viberation at high speed!!!help Well here is the problem I drive the car past 45mph and viberation starts the higher i speed the more it viberates its coming from the rear! any idea on what is going on???

06-06-2011, 07:47 AM	#2
murda-c Post Whore! Join Date: Jan 2007 Location: Montgomery County, MD Age: 36 Posts: 3,198 Trader Rating: (1) Feedback Score: 1 reviews	most likely tires are flatspotted, a rim is bent, or tire is out of balance. swap your rears for your fronts and see if the vibration follows. Inspect the tires and wheels while you have them off. __________________

06-06-2011, 07:49 AM	#3
mattack69 Zilvia Junkie Join Date: Jan 2007 Location: Germany biashses Age: 44 Posts: 412 Trader Rating: (3) Feedback Score: 3 reviews	Have you checked your wheels to make sure they are seated, not warped, don't have a hub-centric ring behind them when they don't need it, the lug nuts are on the whole way and torqued.. I'd start there. Side note I seen "Viberation at high speed!!!help" and though you were stuck under a fatty, lol __________________

06-06-2011, 12:18 PM	#6
camaro379ss Zilvia Junkie Join Date: Mar 2011 Location: Indianapolis, IN Posts: 363 Trader Rating: (4) Feedback Score: 4 reviews	most likely NOT an out of balance tire unless there's just absoluelty no weights on it whatsoever. An out of balance wheel will vibrate at a certain speed and go away at another. Most likely causes as some have previously stated... 1. bent wheel 2. tires could have flat spots 3. Driveshaft imbalance Most of these are quite easy to see visually. __________________ 1991 Nissan B13 Sentra sr20det 300whp/1991 Nissan S13 240sx sr20det ~260whp

06-06-2011, 03:22 PM	#7
SR240Z Zilvia Junkie Join Date: Apr 2004 Location: California Posts: 473 Trader Rating: (10) Feedback Score: 10 reviews	Bring it by the shop, we can check all that out for you. Very likely to be one of the things listed by camaro379ss __________________ 2004 IS300 Sportcross 1JZ

06-06-2011, 10:07 AM	#4
s141996 Zilvia Junkie Join Date: Sep 2010 Location: IE Age: 38 Posts: 324 Trader Rating: (6) Feedback Score: 6 reviews	lol!!!!!!and i'll do that when i get home thanks guys!

06-06-2011, 10:19 AM	#5
nismo 240sx Zilvia Addict Join Date: Aug 2008 Location: pomona Posts: 606 Trader Rating: (5) Feedback Score: 5 reviews	worst case also check the weights that are on your drive shaft...

06-06-2011, 03:30 PM	#8
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	I bet its something interior related. __________________

06-06-2011, 04:45 PM	#9
surge s14 Zilvia FREAK! Join Date: Dec 2005 Location: Laredo Texas Posts: 1,125 Trader Rating: (12) Feedback Score: 12 reviews	are flat spotted tires fixable? a good burn out? __________________

06-15-2011, 12:46 AM	#11
KYjellaye Join Date: Mar 2011 Location: Seattle Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	My car did the exact same thing. Once it got past 40mph it start have violent vibrations from the rear of the vehicle. It turned out that some of the bolts from the driveshaft to the diff were loose..