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Razvan Petrescu
Tinkerer
SA
V8 Limited Edition

Posts: 14
Reg: 05-2008

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 Wednesday, June 25, 2008 - 11:03 pm, by:  Razvan Petrescu (Raz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
I have a problem with my rear left hand side tyre loosing pressure very quickly (unevenly). I have 18" tyres and I pump the fronts 34 and the rears 32. While all of the other tyres might loose 1 PSI, the LHS rear tyre would be down to ~ 25 after just one week.

I am in the process of purchasing new bushes to replace my worn ones, but could the rear LHS tyre be loosing pressure due to the rear LHS shock? The Pedders test i had done a few weeks ago mentioned that the rear LHS shock is leaking.

I read on the forums how expensive airbag struts can be, and that they are different, my question would be, can just one airbag strut be replaced at a time (ie, swap it with a new strut), and not having to replace all 4 at once? Other options would be second hand struts or changing to coilovers i guess.
Rich O'neil
TryHard
Queensland
90 Celsior

Posts: 322
Reg: 05-2006

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 Thursday, June 26, 2008 - 06:06 am, by:  Rich O'neil (Kiwiinaus) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
This topic [ air struts over coil-overs ]has been well hashed .
I believe that the air struts are in fact very very cost effective even at $800.00 each for genuine replacements .
I mean the last lot went for 15 odd years !!!
Think of any other strut that will do that .
I also keep hearing how people have gone to coil-overs and proclaim that they are so much better , better than what , 16 year old air struts !!!
Try comparing new coil-overs to new air struts and then see which is best and I can tell you it's a no brainer !!
Anyhow it sounds like you have a leaking rear strut and yes they can be replaced one at a time .
I have some low milage rears coming from Japan shortly if you are interested , but if you intend to hang onto the car for some time think seriously about fitting new units .
Peter Nitschke
JunkFilterer
South Australia
UZZ30 UZZ31

Posts: 9577
Reg: 11-2004

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 Thursday, June 26, 2008 - 07:59 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)
And get your tyre fixed. Tyres losing pressure has nothing to do with anything else but the tyre itself - or the valve.
Razvan Petrescu
Tinkerer
SA
V8 Limited Edition

Posts: 15
Reg: 05-2008

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 Thursday, June 26, 2008 - 05:40 pm, by:  Razvan Petrescu (Raz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Ok, thanks, wasn't sure if the airbag could have had anything to do with the tyre loosing pressure or not. For the moment the airbags still seem to function, car height works, and the car doesn't seem to be leaning on one side. It would be good to compare coilovers with brand new airbags.
Avin Luther
Goo Roo
vic
uzz31 Limited

Posts: 1230
Reg: 07-2005

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 Thursday, June 26, 2008 - 07:32 pm, by:  Avin Luther (Lex_luther) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Fix your tyre...

Oh and pedders were probably referring to an Oil leak not an air leak.
if the oil leaks your shock absorber isnt working. if air leaks the height wont stay.
Avin Luther
Goo Roo
vic
uzz31 Limited

Posts: 1231
Reg: 07-2005

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 Thursday, June 26, 2008 - 07:36 pm, by:  Avin Luther (Lex_luther) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
OH and pop your bonnet, on the passenger side bank of your engine check that the "710" cap is on tight enough. These can often leak and let the rear tyres down.



RIP Soarer central
Mike Beck
Goo Roo
New Zealand
Soarer Limited UZZ31 & Soarer 3.0GT JZZ31

Posts: 2139
Reg: 11-2005

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 Thursday, June 26, 2008 - 08:20 pm, by:  Mike Beck (Gold_40gt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Razvan Petrescu wrote on Wednesday, June 25, 2008 - 11:03 pm:

I am in the process of purchasing new bushes to replace my worn ones, but could the rear LHS tyre be loosing pressure due to the rear LHS shock? The Pedders test i had done a few weeks ago mentioned that the rear LHS shock is leaking.



Um..... considering the fact the air strut and tyres are completely independent of each others physical behavior that wont be the case at all!

It's obvious your tyre has a leak, take it to a shop and they will try find the leak, if its repairable its around $20 or so.

Your second separate problem is your Air struts shock has had it's day and now the air bag rubber has split and leaking air. It will need to be replaced - you should replace the shocks in pairs...... if you do one shock in my opinion thats new VS old, you will have different performance levels from either shock.

Razvan Petrescu
Tinkerer
SA
V8 Limited Edition

Posts: 16
Reg: 05-2008

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 Thursday, June 26, 2008 - 08:26 pm, by:  Razvan Petrescu (Raz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Yep, I will fix the tyre, I'm suspecting the valve, but i'll have to see...Yes, Pedders were talking about the shock leaking (oil), but the way I understood it, you have to replace the whole airbag strut.
Dave Rose
TryHard
wa
uzz31 v8

Posts: 426
Reg: 03-2007

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 Thursday, June 26, 2008 - 09:01 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)
Razvan...if pedders are talking oil.. and i see you have a v8....is your car a zz32??
Razvan Petrescu
Tinkerer
SA
V8 Limited Edition

Posts: 17
Reg: 05-2008

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 Thursday, June 26, 2008 - 09:17 pm, by:  Razvan Petrescu (Raz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
No, I have uzz31.
Avin Luther
Goo Roo
vic
uzz31 Limited

Posts: 1232
Reg: 07-2005

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 Thursday, June 26, 2008 - 09:30 pm, by:  Avin Luther (Lex_luther) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Dave Airbag struts have oil in them. and air.
well most have oil in them.
Dave Rose
TryHard
wa
uzz31 v8

Posts: 427
Reg: 03-2007

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 Thursday, June 26, 2008 - 09:57 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)
I just had a feeling we were talking about a 32
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 3588
Reg: 10-2005

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 Friday, June 27, 2008 - 06:33 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Peter Nitschke wrote on Thursday, June 26, 2008 - 07:59 am:

anything else but the tyre itself - or the valve.



Or a warped/damaged rim.

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