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brett
 Post subject: Hydro height issue
PostPosted: Tue Oct 25, 2016 5:53 pm 
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Hi guys ok my suspension is set fairly low. At Bathurst with a full car of big units it was really low ie occasional rubber smell.

Got home after the rough NSW roads got some airbtime with the car on the trailer...

Got home and the car is sitting a lot higher than when I left. I have just bought a pump and fluid to pump it up. Butbso far no need... any ideas why its sitting higher.?

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Bill B
 Post subject: Re: Hyrdo height issue
PostPosted: Tue Oct 25, 2016 7:06 pm 
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Very hot weather will cause slight expansion of the fluid and put the ride height noticeably up. Good quality fluid had a stabiliser in it (supposedly) to reduce this. In winter, the height is always a bit lower.
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brett
 Post subject: Re: Hyrdo height issue
PostPosted: Tue Oct 25, 2016 7:16 pm 
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Yeah possibly but doubt its the thing.

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69k1100
 Post subject: Re: Hyrdo height issue
PostPosted: Tue Oct 25, 2016 8:34 pm 
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My first question would be have you had a good look around the suspension with a torch? Maybe something has unseated?
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whoopspiggy
 Post subject: Re: Hyrdo height issue
PostPosted: Tue Oct 25, 2016 8:39 pm 
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Big units??? Must have those guys in the back!


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9YaTaH
 Post subject: Re: Hyrdo height issue
PostPosted: Tue Oct 25, 2016 9:07 pm 
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Location: Sthrn HiLoLands, NSW, Australia
Maybe the constant pumping of the suspension caused some valves to fail? or go one-way?? Have you tried letting a little pressure out of the systems?

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brett
 Post subject: Re: Hyrdo height issue
PostPosted: Tue Oct 25, 2016 10:00 pm 
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its all 4 wheels.... both sides. the chance of 4 hydrolastic bags having issues is just very unlikely
.

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9YaTaH
 Post subject: Re: Hyrdo height issue
PostPosted: Wed Oct 26, 2016 7:31 am 
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brett wrote:
its all 4 wheels.... both sides. the chance of 4 hydrolastic bags having issues is just very unlikely
.


Suuuuurrrreeee...but you could also say the same thing about the likelihood of 4 trumpets/shafts jumping out of their seats....yeah :?:

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69k1100
 Post subject: Re: Hyrdo height issue
PostPosted: Wed Oct 26, 2016 2:31 pm 
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Absolutely could. 4 of anything isn't unlikely in a 50 year old system.
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simon k
 Post subject: Re: Hydro height issue
PostPosted: Thu Oct 27, 2016 11:48 am 
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me on facebook wrote:
my assumption, possibly bullshit: guessing you held the car down with straps over the tyres rather than pulling the body down on to the trailer - all of the rubbers and joints have relaxed - they've been stretched in the opposite direction to usual when the trailer went through a dip or pothole and rebounded upwards. The car does normally get that when you're driving, but it wasn't subjected to the usual jarring with the full weight of the car when it goes through the pothole itself.... half fill a bottle with water and detergent and gently shake it up and down. Big bubbles form. Bash it down on the bench, big bubbles pop. Drive the car and it'll settle down


basically without driving the car, you have no idea what is happening - at this point it's not a lot different to how the car sits up high right after taking it off a 2 post hoist

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gtogreen1969
 Post subject: Re: Hydro height issue
PostPosted: Thu Oct 27, 2016 12:51 pm 
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What hydro pressure are you running?
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