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Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 319
Reg: 07-2008

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Friday, November 21, 2008 - 10:51 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

When driving the car above 80kms, if I hit the slightest bump in the road, my car is all over the place.
Yesterday, doing 100kms on the freeway in the wet, even if i don't hit a bump the wind seems to push my car almost sideways.
If I do hit a bump, or even an un-even bit in the road when it's wet I can definitely feel the back end getting happy.
Normally, this would put a smile on my face, but cruising down the freeway at 100kms at 6am whilst half asleep is pretty scary, I really have to concentrate on keeping the car steady.

Could this be suspension issues or something else?

Also, I never knew an open diff could leave two black lines in the dry.
Not something I do often, but is this normal or is my diff on its way out as well?

Cheers, Sean.
Evan Kaio
TryHard
The Hutt
'91 UZZ31

Posts: 284
Reg: 01-2007

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Saturday, November 22, 2008 - 07:06 am, by:  Evan Kaio (Knave) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Check your air struts for oil leaks, probably one of your rear struts has leaked oil.
Mike Bradberry
Goo Roo
Queensland
V8 UnLimited

Posts: 1102
Reg: 07-2005

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Saturday, November 22, 2008 - 08:26 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)

Has to be your air struts. The reason I say this is that I have some to sell.
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 320
Reg: 07-2008

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Saturday, November 22, 2008 - 10:23 am, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Cheers guys, looks like i'll be upgrading to coilovers sooner that I'd hoped.
Brett Moloney
DieHard
Queensland
Supercharged UZZ31

Posts: 752
Reg: 07-2005

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Saturday, November 22, 2008 - 11:15 am, by:  Brett Moloney (Lxsv8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Tramlining?
Luke Barnes
TryHard
Queensland
GT Limited V8 UZZ31

Posts: 159
Reg: 05-2006

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Saturday, November 22, 2008 - 12:26 pm, by:  Luke Barnes (Noddy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

either that or a wheel alignment.. if its out in a big way, this will cause the car to tram track and also wander all over the road.
Ben Kelly
TryHard
Wentworthville
v8

Posts: 478
Reg: 08-2005

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Saturday, November 22, 2008 - 08:20 pm, by:  Ben Kelly (Ace) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

get wheels with the right offset.
John Khanh
TryHard
NSW
UZZ31

Posts: 416
Reg: 03-2007

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Sunday, November 23, 2008 - 12:01 am, by:  John Khanh (Bigjohn) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Possibility of lower control arm bushes torn. When these are kaput, it will feel as though the back end steps out when hitting bumps.
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 325
Reg: 07-2008

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Sunday, November 23, 2008 - 12:04 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yeah it does that. Once it starts swaying, wheather from wind or a bump, the car also continually keeps rocking from side to side...
David Vaughan
Goo Roo
ACT
V8 Ltd manual

Posts: 4045
Reg: 07-2005

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Sunday, November 23, 2008 - 12:35 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)

Dampers, meaning your air struts are shot. Downgrade to coilovers or see Neill for new ones cheaper than Mr T's.

From your description, your car is currently unroadworthy.
Phil Gibson
Goo Roo
WA
'91 UZZ31 track bunky, '94 blk/blk UZZ31

Posts: 1305
Reg: 07-2005

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Sunday, November 23, 2008 - 01:24 pm, by:  Phil Gibson (Sciflyer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

as david said, dont assume swapping to non air suspention is an "upgrade", for a normal street driven car it isnt...
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 326
Reg: 07-2008

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Sunday, November 23, 2008 - 04:17 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Who's Mr T?

To swap to coilovers, what do I need and what can stay? Is it just shocks and springs?

Will this get worse over time or even worse, undrivable soon?

Thanks for everyones comments.
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 327
Reg: 07-2008

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Sunday, November 23, 2008 - 04:20 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Okay, my hypothesis is that Mr T is Toyota.
David Vaughan
Goo Roo
ACT
V8 Ltd manual

Posts: 4046
Reg: 07-2005

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Sunday, November 23, 2008 - 05:52 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)

Use "Search" on coilovers or else someone else will be along to help soon, as I put in new airbags.

If I am correct to deduce from your description that you basically have little or no damping left in your suspension, then the car in my view is already unsafe and therefore not driveable.

If the rear wheels hit a small ripple or bump as you accelerate (not hard) through a corner, does the tail step sideways?

No-one answered your diff question (or I missed it). The car's behaviour is normal and shows nothing wrong with the diff. Yours, however, is normally wrong :-) :-)
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 329
Reg: 07-2008

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Sunday, November 23, 2008 - 06:55 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ha, do you mean normally wrong because it's an open diff? If so, I couldn't agree with you more.

I can't recall if it steps out when going around corners, but if I hit a small ripple when going straight it definitely steps sideways, even at 50-60kms.

Please excuse my lack of knowledge, but what is damping exactly? What part of the suspension controls this?

Cheers David.
David Vaughan
Goo Roo
ACT
V8 Ltd manual

Posts: 4047
Reg: 07-2005

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Sunday, November 23, 2008 - 08:12 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)

In order of your paragraphs:

1. I was making a joke about it being socially wrong to lay rubber on takeoff with an ambiguity around whether this was "normal" behaviour, by you or anyone. Sorry, too obscure. :-)
More seriously, and contrary to rumours whenever this discussion comes up, it is perfectly possible to lay two black lines with an open diff. To do so says nothing at all about whether you have an LSD. My main point was that your diff shows no faults from doing that.

2. OK, still sounds like dampers to me.

3. Dampers = shock absorbers = the part that stops your car from continuing to bounce on its springs after the first jolt of a bump. If your dampers are not working then your car is substantially uncontrollable in a swerve emergency or whenever it hits mild bumps or corrugations in a corner or undulations on a straight road, especially at speed. This is serious, especially in a high performance and heavy car like the Soarer.

4. HTH
Ryan McDonough
DieHard
NSW
STOCK JZZ30 TT

Posts: 522
Reg: 07-2005

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Sunday, November 23, 2008 - 09:28 pm, by:  Ryan McDonough (Ryan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Pedders suspension check. Cost you like $20, they will tell you what is wrong and explain it to you.
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 331
Reg: 07-2008

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Sunday, November 23, 2008 - 09:28 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks David, definitely sounds like that is my problem. Just lucky I haven't had to swerve to avoid hitting something at high speeds yet. I hadn't really thought about that side of things.

Looks like i'll have to get my priorities sorted.

Cheers.
David Vaughan
Goo Roo
ACT
V8 Ltd manual

Posts: 4048
Reg: 07-2005

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Sunday, November 23, 2008 - 09:42 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)

I agree with Ryan and have often recommended that before.

However, based on an experience when I went there with another member a while ago, if they tell you their equipment is unable to test air suspensions then find a polite way of telling them not to talk utter drivel and to get on with the test. Insist on taking the charts away with you.

Also, decline politely but forcefully any offer by them to fix bushes. If you have bushing problems you need Vlamos bushes not nolothane ones, at least if you ever want to enjoy the ride again.
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 10283
Reg: 11-2004

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Monday, November 24, 2008 - 03:14 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Also, get the rear toe-in bolts checked. One of mine came loose and I could feel the car step a bit on bumps.
Sean Routledge
TryHard
Victoria
V8 Limited

Posts: 332
Reg: 07-2008

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Monday, November 24, 2008 - 12:24 pm, by:  Sean Routledge (Stircrazy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Will do, thanks everyone.

This site has helped me through so many problems, and probably saved me hundreds of dollars. Glad to be a member.

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