vibration in steering wheel when i accelerate

Technical questions and discussion

Moderator: Moderators

vibration in steering wheel when i accelerate

Postby ftomad » Fri Feb 29, 2008 3:50 am

I hit a pothole the other night and since that my car vibrates when i accelerate, but the is fine when i let off the pedal
At first i thought it was a buckled wheel but changed them and its still the same, the guy that changed they wheels said the tracking is fine too
I abviously broke somthing, any1 got any clues as to what it might be?
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby d_dan » Fri Feb 29, 2008 10:32 am

bent wishbone?
d_dan
Forever Ticking Over
Forever Ticking Over
 
Posts: 1903
Joined: Thu Jan 03, 2008 9:52 pm
Location: Kildare

Postby steelroe » Fri Feb 29, 2008 11:36 am

Did he check the trackin, Measure the distance between the wheel and wing on both sides, If there is a noticable diff you have bent something.
Were the wheel rebalanced
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Postby ftomad » Fri Feb 29, 2008 11:49 am

steelroe wrote:Did he check the trackin, Measure the distance between the wheel and wing on both sides, If there is a noticable diff you have bent something.
Were the wheel rebalanced


Yeah i got 2 new tyres on the front and he balanced them, and said tracking is fine.
best bet is to bring it to some1 to have a look i reckon
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby versionR » Fri Feb 29, 2008 2:53 pm

if its not the wheels, sumthin must have come loose
User avatar
versionR
Speed freak
Speed freak
 
Posts: 71
Joined: Wed Oct 10, 2007 3:18 am
Location: tipp

Postby steelroe » Fri Feb 29, 2008 4:00 pm

I reckon you have a bucked wheel. Did you cahnge the wheel that hit the hole or just the tyre. Maybe put on the spare and see what happens.
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Postby stevec » Fri Feb 29, 2008 8:10 pm

Could have bent a half shaft or damaged a CV joint either.
How bad a hit was it?
User avatar
stevec
FTO nut!
FTO nut!
 
Posts: 176
Joined: Mon Aug 29, 2005 2:28 pm
Location: Dublin

Postby ftomad » Fri Feb 29, 2008 9:03 pm

stevec wrote:Could have bent a half shaft or damaged a CV joint either.
How bad a hit was it?


ye might be its deff not a buckled wheel because i change the front wheels twice with a different set, it was bad enough hit bit i didnt tink that much of it at the time
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby stevec » Fri Feb 29, 2008 9:37 pm

If it's a half shaft then you should be able to clock it on a ramp. CV joint would be noisy as well.
Could be a disc either - do you get wobble under braking or only accel?
User avatar
stevec
FTO nut!
FTO nut!
 
Posts: 176
Joined: Mon Aug 29, 2005 2:28 pm
Location: Dublin

Postby ftomad » Fri Feb 29, 2008 11:29 pm

stevec wrote:If it's a half shaft then you should be able to clock it on a ramp. CV joint would be noisy as well.
Could be a disc either - do you get wobble under braking or only accel?


yeah it just wobbles alot when i accel but when i take my foot off the pedal it rolls with no wobble even at say 100kms
Some1 reckons it mite be the coilovers that need adjusting
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby steelroe » Sat Mar 01, 2008 4:22 pm

Is the vibration through the steering??
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Postby steelroe » Sat Mar 01, 2008 4:24 pm

Disk should only vibrate when tou press pedal if it is warped. Cant see why hitting a pothole would damage disk.
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Postby steelroe » Sat Mar 01, 2008 4:27 pm

stevec could be right here. Sounds like a drive shaft, given the fact the vibration is less when accel if left off. I the shaft is bent the faster it spins the more vibration you would get.
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Postby ftomad » Sat Mar 01, 2008 6:55 pm

steelroe wrote:stevec could be right here. Sounds like a drive shaft, given the fact the vibration is less when accel if left off. I the shaft is bent the faster it spins the more vibration you would get.


so will it be a cv joint or a half shaft you think il need? or does it come as one piece
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby steelroe » Sat Mar 01, 2008 8:30 pm

Jack the car up as high as possible Both wheels off the ground. Support it with axle stands. Need two people now. Start the car put it in 1st. One guy rev the car and the other get under. You should notice a wobble in the shaft if it is bent. You may well notice something elser while you are under there.

Make sure it is supported well
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Postby Marie » Sun Mar 02, 2008 12:12 am

You sure your tyres have enough thread on them?
When you're good, you're good....... but when you're great you're ME
User avatar
Marie
Nothing comes between me and my FTO
Nothing comes between me and my FTO
 
Posts: 644
Joined: Tue Sep 25, 2007 9:27 am
Location: Limerick

Postby stevec » Sun Mar 02, 2008 12:28 am

steelroe wrote:Jack the car up as high as possible Both wheels off the ground. Support it with axle stands. Need two people now. Start the car put it in 1st. One guy rev the car and the other get under. You should notice a wobble in the shaft if it is bent. You may well notice something elser while you are under there.

Make sure it is supported well

If you do this, clamp something pointy to a fixed point on the car - and have it near the drive shaft. As its rotating (doesnt have to be fast) move it closer until it touches. This will tell you if the shaft is bent - it'll only hit on one side.
Take the wheels off first so to eliminate them being off balance.

Don't see how a pothole could cause this unless it was a really bad hit though.
User avatar
stevec
FTO nut!
FTO nut!
 
Posts: 176
Joined: Mon Aug 29, 2005 2:28 pm
Location: Dublin

Postby ftomad » Sun Mar 02, 2008 11:15 pm

stevec wrote:
steelroe wrote:Jack the car up as high as possible Both wheels off the ground. Support it with axle stands. Need two people now. Start the car put it in 1st. One guy rev the car and the other get under. You should notice a wobble in the shaft if it is bent. You may well notice something elser while you are under there.

Make sure it is supported well

If you do this, clamp something pointy to a fixed point on the car - and have it near the drive shaft. As its rotating (doesnt have to be fast) move it closer until it touches. This will tell you if the shaft is bent - it'll only hit on one side.
Take the wheels off first so to eliminate them being off balance.

Don't see how a pothole could cause this unless it was a really bad hit though.


looks like the shaft is bend alright, my mate looked at it

r these expensive?
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby ftomad » Mon Mar 03, 2008 7:25 pm

a wee bit expensive for me on camskill :cry:

http://www.camskill.co.uk/products.php? ... b0s12p1550
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby misterbishi » Mon Mar 10, 2008 6:47 pm

Sorry just seen the post, had the same problem on a cyborg! also turned out to be the half shaft! :cry:
TDI....Premature Acceleration
User avatar
misterbishi
FTO nut!
FTO nut!
 
Posts: 132
Joined: Wed Jan 11, 2006 9:06 pm
Location: Cork

Postby ftomad » Wed Mar 12, 2008 1:01 pm

misterbishi wrote:Sorry just seen the post, had the same problem on a cyborg! also turned out to be the half shaft! :cry:


looks to be the same thing so how did it happen you? pothole?
ftomad
FTO nut!
FTO nut!
 
Posts: 123
Joined: Thu Jan 17, 2008 1:45 pm
Location: waterford

Postby misterbishi » Wed Mar 12, 2008 6:05 pm

Cant tie it down to an event but only remember noticing it after a rather spirited 50mph hand-brake turn with loads of power on I think I almost fried the cluch at the same time!! :oops: I was very young at the time :twisted: the outcome was as you said... vibration under acceleration!
TDI....Premature Acceleration
User avatar
misterbishi
FTO nut!
FTO nut!
 
Posts: 132
Joined: Wed Jan 11, 2006 9:06 pm
Location: Cork

Postby Muad_dib77 » Wed Mar 12, 2008 6:15 pm

misterbishi wrote:Cant tie it down to an event but only remember noticing it after a rather spirited 50mph hand-brake turn with loads of power on I think I almost fried the cluch at the same time!! :oops: I was very young at the time :twisted: the outcome was as you said... vibration under acceleration!


ROFL!! Well yeah - that would probably do it alright... terrible..

thank god it was on a private track eh?!
Image<->FTO-Ireland Shop
Tiomáint sé cosúil go bhfuil tú déanach i gcás maise!
User avatar
Muad_dib77
Moderator
Moderator
 
Posts: 5868
Joined: Fri Aug 26, 2005 3:35 pm
Location: Mr. Adam' back-yard.

Postby Myfeckin FTO » Wed Mar 12, 2008 6:16 pm

misterbishi wrote:Cant tie it down to an event but only remember noticing it after a rather spirited 50mph hand-brake turn with loads of power on I think I almost fried the cluch at the same time!! :oops: I was very young at the time :twisted: the outcome was as you said... vibration under acceleration!


Like this - http://www.youtube.com/watch?v=n37ong3xPwo#

WHY?
Image
User avatar
Myfeckin FTO
Forever Ticking Over
Forever Ticking Over
 
Posts: 5307
Joined: Wed Apr 28, 2004 2:19 am
Location: Clare/Limerick

Postby steelroe » Wed Mar 12, 2008 7:56 pm

I wish the handbrake was that good on my FTO.
WHY oh WHY. He did do well to keep it off the ditches though.
User avatar
steelroe
Forever Ticking Over
Forever Ticking Over
 
Posts: 2206
Joined: Fri Feb 28, 2003 3:14 pm
Location: Kerry

Next

Return to FTO Technical

Who is online

Users browsing this forum: No registered users and 2 guests

cron