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Author Topic: Wheel alignment  (Read 7653 times)

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Markjay

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Re: Wheel alignment
« Reply #15 on: 26 January 2007, 23:05:54 »

Quote
Took it in today & if my scanner worked I would copy the printout but here'e the data:

Front

Total Toe -13.9 now +0.9
Toe   -7.2   - 6.7 now +0.5   +0.4
Camber -1.3   - 2.2 now -1.4   -2.4
Cross Camber +1.0  now +0.9  (Range -0.5 +0.5)

Rear

Total Toe +1.3
Toe +0.5   +0.8 (Range +0.6 + 1.8)
Thrust Angle (on) +0.0
Camber -1.4   -1.9
Cross Camber +0.4

Given rear only out by tolerance of 0.1 on Toe, these weren't adjusted.


Looking good!  :y

How does it drive?
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Chopsdad

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Re: Wheel alignment
« Reply #16 on: 26 January 2007, 23:48:54 »

I think I've got the only Omega that doesn't pull to the left  ;)

TBH it felt a bit vauge yesterday - like the tyres were over inflated.  But it now feels sure footed again :y

I know it's not a full geometry set up, but the rear hasn't been touched since new nearly 4 years ago and its still within tolereance and at just £15 for the front I'd say it was money well spent.  :)
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wombatcurry

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Re: Wheel alignment
« Reply #17 on: 27 January 2007, 09:46:48 »

I agree that is sounds like your local tyre dealer is a waste of space.
After doing my wishbones & struts last weekend, took the car to a GOOD local tyre dealer & they did a full 4 wheel geometry with before and after print outs (even tho I didn't buy any tyres).
They did comment that the price would depend on how easy it was to get things unsiezed - luckily it all moved without a problem!
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wheels-inmotion

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Re: Wheel alignment
« Reply #18 on: 27 January 2007, 16:50:52 »

Quote
Where is the furthest north recommended place that can do full geometry?

BTW I posted on your forum a few weeks ago about getting my Omega done, my last post was about Drivers in Glasgow being able to do alignment and camber. Sorry I haven't replied, kinda forgot about it! Although you said tracking & camber should be OK, I'd really like a proper full setup as this car does behave strangely under heavy braking and I've already had camber and tracking done.

Cheers.

If the poor handling only occurs under braking then the problem is unlikely to be Geometrical..... Obviously the Geometry goes through transitions under braking but there would also be evidence in the handling during relaxed driving.
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wheels-inmotion

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Re: Wheel alignment
« Reply #19 on: 27 January 2007, 17:06:12 »

Quote
Took it in today & if my scanner worked I would copy the printout but here'e the data:

Front

Total Toe -13.9 now +0.9
Toe   -7.2   - 6.7 now +0.5   +0.4
Camber -1.3   - 2.2 now -1.4   -2.4
Cross Camber +1.0  now +0.9  (Range -0.5 +0.5)

Rear

Total Toe +1.3
Toe +0.5   +0.8 (Range +0.6 + 1.8)
Thrust Angle (on) +0.0
Camber -1.4   -1.9
Cross Camber +0.4

Given rear only out by tolerance of 0.1 on Toe, these weren't adjusted.

Sorry i don't like it!.... Why is the front camber disparity still 1 degree?... There are three errors in this.
1: Camber is conically compressive deforming the tyre sidewall. The force needs to be met with equal resistance or it will "push" to the lower figure.
2: Camber is subject to "camber gain" This is the compressive "on the bump" radii taken by the wishbones. I feel the osf will exceed the desired gain and wear the tyre inner.
3: You could notice different cornering reactions... left turn aided by the very negative osf camber... right turn heavily/ aggravated by the camber.
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Chopsdad

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Re: Wheel alignment
« Reply #20 on: 27 January 2007, 20:13:43 »

Quote
Quote
Took it in today & if my scanner worked I would copy the printout but here'e the data:

Front

Total Toe -13.9 now +0.9
Toe   -7.2   - 6.7 now +0.5   +0.4
Camber -1.3   - 2.2 now -1.4   -2.4
Cross Camber +1.0  now +0.9  (Range -0.5 +0.5)

Rear

Total Toe +1.3
Toe +0.5   +0.8 (Range +0.6 + 1.8)
Thrust Angle (on) +0.0
Camber -1.4   -1.9
Cross Camber +0.4

Given rear only out by tolerance of 0.1 on Toe, these weren't adjusted.

Sorry i don't like it!.... Why is the front camber disparity still 1 degree?... There are three errors in this.
1: Camber is conically compressive deforming the tyre sidewall. The force needs to be met with equal resistance or it will "push" to the lower figure.
2: Camber is subject to "camber gain" This is the compressive "on the bump" radii taken by the wishbones. I feel the osf will exceed the desired gain and wear the tyre inner.
3: You could notice different cornering reactions... left turn aided by the very negative osf camber... right turn heavily/ aggravated by the camber.

Thanks Tony - the only trouble is the garage "specialist" is Polish and can only adjust the tracking. My tyres wear evenly, apart from slight feathering of the outside edge presumably caused by the faulty wishbones.  Garage said " We only do tracking mate - there is no camber adjustment on these" so he just adjusted what he could.  Car is fitted with Pirelli P7's 225/55/16.  Tyre wall did fail on the first set but I can't recall inner/outer but sure it was the nsf.  Current set all seem ok.
« Last Edit: 27 January 2007, 20:14:41 by Chopsdad »
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wheels-inmotion

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Re: Wheel alignment
« Reply #21 on: 28 January 2007, 19:19:16 »

Quote
Quote
Quote
Took it in today & if my scanner worked I would copy the printout but here'e the data:

Front

Total Toe -13.9 now +0.9
Toe   -7.2   - 6.7 now +0.5   +0.4
Camber -1.3   - 2.2 now -1.4   -2.4
Cross Camber +1.0  now +0.9  (Range -0.5 +0.5)

Rear

Total Toe +1.3
Toe +0.5   +0.8 (Range +0.6 + 1.8)
Thrust Angle (on) +0.0
Camber -1.4   -1.9
Cross Camber +0.4

Given rear only out by tolerance of 0.1 on Toe, these weren't adjusted.

Sorry i don't like it!.... Why is the front camber disparity still 1 degree?... There are three errors in this.
1: Camber is conically compressive deforming the tyre sidewall. The force needs to be met with equal resistance or it will "push" to the lower figure.
2: Camber is subject to "camber gain" This is the compressive "on the bump" radii taken by the wishbones. I feel the osf will exceed the desired gain and wear the tyre inner.
3: You could notice different cornering reactions... left turn aided by the very negative osf camber... right turn heavily/ aggravated by the camber.

Thanks Tony - the only trouble is the garage "specialist" is Polish and can only adjust the tracking. My tyres wear evenly, apart from slight feathering of the outside edge presumably caused by the faulty wishbones.  Garage said " We only do tracking mate - there is no camber adjustment on these" so he just adjusted what he could.  Car is fitted with Pirelli P7's 225/55/16.  Tyre wall did fail on the first set but I can't recall inner/outer but sure it was the nsf.  Current set all seem ok.

I have absolutely no problems being wrong but i do have enough wisdom to command that you stay vigilant and monitor the inner tyre wear!....... If in a years time the tyres are wearing correctly you can header a topic "wheels-inmotion talks pants" and i will bow my head.... In the mean time i am concerned so please be wise!!!!!
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Chopsdad

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Re: Wheel alignment
« Reply #22 on: 28 January 2007, 21:23:40 »

Quote
Quote
Quote
Quote
Took it in today & if my scanner worked I would copy the printout but here'e the data:

Front

Total Toe -13.9 now +0.9
Toe   -7.2   - 6.7 now +0.5   +0.4
Camber -1.3   - 2.2 now -1.4   -2.4
Cross Camber +1.0  now +0.9  (Range -0.5 +0.5)

Rear

Total Toe +1.3
Toe +0.5   +0.8 (Range +0.6 + 1.8)
Thrust Angle (on) +0.0
Camber -1.4   -1.9
Cross Camber +0.4

Given rear only out by tolerance of 0.1 on Toe, these weren't adjusted.

Sorry i don't like it!.... Why is the front camber disparity still 1 degree?... There are three errors in this.
1: Camber is conically compressive deforming the tyre sidewall. The force needs to be met with equal resistance or it will "push" to the lower figure.
2: Camber is subject to "camber gain" This is the compressive "on the bump" radii taken by the wishbones. I feel the osf will exceed the desired gain and wear the tyre inner.
3: You could notice different cornering reactions... left turn aided by the very negative osf camber... right turn heavily/ aggravated by the camber.

Thanks Tony - the only trouble is the garage "specialist" is Polish and can only adjust the tracking. My tyres wear evenly, apart from slight feathering of the outside edge presumably caused by the faulty wishbones.  Garage said " We only do tracking mate - there is no camber adjustment on these" so he just adjusted what he could.  Car is fitted with Pirelli P7's 225/55/16.  Tyre wall did fail on the first set but I can't recall inner/outer but sure it was the nsf.  Current set all seem ok.

I have absolutely no problems being wrong but i do have enough wisdom to command that you stay vigilant and monitor the inner tyre wear!....... If in a years time the tyres are wearing correctly you can header a topic "wheels-inmotion talks pants" and i will bow my head.... In the mean time i am concerned so please be wise!!!!!

Please don't misunderstand Tony - I actually wan't your help and advice. Camber, cross camber etc are just words to me but I know for you they reveal much more.  What I meant to ask was - Is there anything I can get the Polish lad to do to address the issue - as I may need a step by step guide.  :y
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wheels-inmotion

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Re: Wheel alignment
« Reply #23 on: 18 February 2007, 10:31:18 »

Reply to "chopsdad"
I'm sorry i don't fully understand...... The printout displayed is a full Geometry... But you say the Polish lad can only set the Alignment? Wherever measured the camber positions needs to finish the job correctly. If they are unable to realize where they have gone wrong wim is quite prepared to explain.... If you pm me their # i will contact them in advance of your return or have them contact me 01923 234666. Complaining is not easy, particularly if the topic is something you don't fully understand.... Remember you have done nothing wrong.
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Marks DTM Calib

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Re: Wheel alignment
« Reply #24 on: 18 February 2007, 10:39:20 »

Chopsdad, I agree with Tony here.....front camber is a critical setting on the Omega (I aim to have it set to -1deg 20sec)....if they can measure it then why dont they adjust it!

As for the statement of 'camber is not adjustable', we all know thats wrong!
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Markjay

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Re: Wheel alignment
« Reply #25 on: 18 February 2007, 11:18:00 »

Quote
Chopsdad, I agree with Tony here.....front camber is a critical setting on the Omega (I aim to have it set to -1deg 20sec)....if they can measure it then why dont they adjust it!

As for the statement of 'camber is not adjustable', we all know thats wrong!




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Danny

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Re: Wheel alignment
« Reply #26 on: 18 February 2007, 21:57:58 »

So is it common for omegas to pull slightly to the left??

I bought mine just under 2 months ago and took it to a networkQ garage, they advised me to get the tracking checked for the pull and the tracking is spot on, having said that, my rear nearside tyre is bald! if i get a fresh set of tyres put on, am i still gonna get very slight left pull?

if so, is this only due to natural lay of the road?
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TheBoy

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Re: Wheel alignment
« Reply #27 on: 18 February 2007, 22:04:22 »

Quote
So is it common for omegas to pull slightly to the left??

I bought mine just under 2 months ago and took it to a networkQ garage, they advised me to get the tracking checked for the pull and the tracking is spot on, having said that, my rear nearside tyre is bald! if i get a fresh set of tyres put on, am i still gonna get very slight left pull?

if so, is this only due to natural lay of the road?
Does seem to be common, but I would recommend a proper geometry check, see www.wheels-inmotion.co.uk who is a member here...
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bestseany

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Re: Wheel alignment
« Reply #28 on: 18 February 2007, 22:08:55 »

I had an argument with the guy in the last place I got my tyres done, he was sure that the camber couldn't be adjusted on Omegs. Well, until he checked his little book that is....  ;)

He also said that I have to take it to Vauxhall to get it done.

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Markjay

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Re: Wheel alignment
« Reply #29 on: 18 February 2007, 22:59:23 »

Quote
So is it common for omegas to pull slightly to the left??...


Yes!!!!!

Both my Omegas had this, plus a couple others that I test drove.

A few years ago I booked my car with Vx for four-wheel alignment which made no difference whatsoever...

Tony from WIM is the first who managed to get this under control, there is still a tiny hint of it, but almost unnoticeable otherwise.

Go see Tony, he's the man...  :y


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