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Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 830
Reg: 07-2005

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Wednesday, February 27, 2008 - 08:49 am, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Since fitting two new rear tyres I have a cycling vibration when travelling at speed (say 90-120kph).
It's OK but just a little annoying if I find myself becoming aware of it.
Anyone else had this and if so what did they do about it?
Dave Rose
TryHard
wa
uzz31 v8

Posts: 284
Reg: 03-2007

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Wednesday, February 27, 2008 - 10:28 am, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

What tyres did you fit Mike?
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 831
Reg: 07-2005

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Wednesday, February 27, 2008 - 12:48 pm, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Nexen 245x45x17".
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 832
Reg: 07-2005

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Wednesday, February 27, 2008 - 12:51 pm, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Arn't you too old to be driving one of these Dave?
Alen Sadikovic
TryHard
VIC
Soarer GTT

Posts: 475
Reg: 10-2006

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Wednesday, February 27, 2008 - 01:14 pm, by:  Alen Sadikovic (Alen87) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i had vibrations like that after i had made some flat spots on the tyres, but odd for new tyres
Troy Burtis
Tinkerer
Alberta
Soarer V8 Limited

Posts: 40
Reg: 11-2007

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Wednesday, February 27, 2008 - 01:21 pm, by:  Troy Burtis (1toy2nv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Mike, whenever there is a vibration from a certain speed to a certain speed, you can almost always assume it is due to improper tire balance. I suggest you take the car back to the tire shop and have them put each tire on the balance machine. Some shops actually charge a separate price for balancing your new tires. If you paid for this service it probably says so on your invoice. If not, you can check the tires by moving the front ones to the back (and vice versa). If the vibration goes away, you most definatly have a tire balance problem. Sometimes a wheel weight can come off throwing the tire off balance.
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 833
Reg: 07-2005

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Wednesday, February 27, 2008 - 01:32 pm, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

What I meant by cycling vibration was that the vibration comes and goes at about 4-5 second intervals at the speeds mentioned. It's as if there are some harmonics going on somewhere.
Troy Burtis
Tinkerer
Alberta
Soarer V8 Limited

Posts: 43
Reg: 11-2007

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Wednesday, February 27, 2008 - 01:34 pm, by:  Troy Burtis (1toy2nv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Can you feel it, or hear it?
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 834
Reg: 07-2005

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Wednesday, February 27, 2008 - 03:53 pm, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I can both feel it and it makes items in the glovebox vibrate. It is not extreme, but being fussy as I am I notice it.
David Vaughan
Goo Roo
ACT
V8 Ltd manual

Posts: 3696
Reg: 07-2005

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Wednesday, February 27, 2008 - 06:16 pm, by:  David Vaughan (Davidv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The most effective balance I have found is on-car. It costs more of course.

Given that they are comparatively cheap tyres (not having a go at you at all) it is not certain you will get rid of the vibration given the symptoms you describe. It could be a construction fault beyond a bit of weight imbalance but you should have a decent chance of solving it.
Benny Gammelmark
Goo Roo
NSW
V8 UZZ31

Posts: 2073
Reg: 07-2005

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Wednesday, February 27, 2008 - 06:45 pm, by:  Benny Gammelmark (Oldfield) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

If you got the wheels balanced the same place you got the tyres it's probably the balance.
I used 5 years in Sydney finding a place that would do a proper balance.

Go to a race driving support outfit and let them do it. Often it's just apprentices that do the balance at tyre marts and they never learn how to do it properly.

I've even had it done by Pedders and they couldn't do it either.
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 835
Reg: 07-2005

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Wednesday, February 27, 2008 - 07:42 pm, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks guys, I will take it to someone else and have it done on car.
David, you can have a go at me about cheap tyres. I don't mind.
Dave Rose
TryHard
wa
uzz31 v8

Posts: 286
Reg: 03-2007

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Wednesday, February 27, 2008 - 11:35 pm, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Mike .....you are never ever to old to drive the best car on the planet..DR
Troy Burtis
Tinkerer
Alberta
Soarer V8 Limited

Posts: 45
Reg: 11-2007

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Thursday, February 28, 2008 - 02:03 am, by:  Troy Burtis (1toy2nv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

We have major problems in NA with the factory aluminum wheels that come with our GMs. It seems a large amount of them are prone to bead leaks and balance problems. I've taken the wheels off of several, and was amazed to find the pile of weights the factory had to put on them to balance them. Most of the complaints from people around here are those two problems. Usually, the balance probs are caused by a wheel weight flying off.
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 836
Reg: 07-2005

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Thursday, February 28, 2008 - 08:36 am, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Dave, it's a joke. If you check my profile you will see why.
Dave Rose
TryHard
wa
uzz31 v8

Posts: 287
Reg: 03-2007

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Thursday, February 28, 2008 - 10:23 am, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Mike you are catching me up !!!! almost the same car!!! great minds must think alike.
mike this may sound crazy but all tyres are not round jack up one at a time spin them .
Mike Bradberry
DieHard
Queensland
V8 UnLimited

Posts: 837
Reg: 07-2005

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Thursday, February 28, 2008 - 12:59 pm, by:  Mike Bradberry (Halflife) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

There used to be a company in Sydney that would jack your car up and grind off the tyres to make them round. Not sure if there is any such thing anymore. Of course this would slightly reduce the wear but at least you would be saving your suspension.
Dave Rose
TryHard
wa
uzz31 v8

Posts: 292
Reg: 03-2007

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Thursday, February 28, 2008 - 05:44 pm, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

If it is the prob it will be only one thats out, spin them and have a marker fixed to the floor you will soon see it . DR

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