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 Post subject: Front end sag
PostPosted: Sun Feb 27, 2005 11:11 am 
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1360cc
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We all get saggy as we get older ........:( Pops front end seems very saggy.

He has hydro subframes, which I know nothing about.

The rear seems to be sitting it's usual standard height (very high), both sides are even, ie: it doesn't lean to one side, so the hydro must be topped up OK.

So the question is......what causes a hydro front end to sag and sit low?


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PostPosted: Sun Feb 27, 2005 11:34 am 
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Maybe the actual bags are shot anton i.e unable to hold the height....?

Don't quote me on that though......just a thought. :?

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PostPosted: Sun Feb 27, 2005 1:11 pm 
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a few things that might be the cause other than displacer unit,and im no expert...
incorrect preasure in system... and with a faulty valve more preasure could be in the rear than front.. i have vague memories about these valves causing sag/ iimballance...

there are some spacers (genuine parts that increase ride hight) available dont know much about them

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PostPosted: Sun Feb 27, 2005 1:16 pm 
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Often overlooked are the rear `helper' springs. These are there to drag the back of the car down > displaces fluid forward > raises front. If they are stretched from old age this can cause front sag. I would look at this first before packing struts or replacing bags.
:!: kazjim has a pile of these springs I think. :wink:

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 Post subject: neener neener!!
PostPosted: Sun Feb 27, 2005 4:32 pm 
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drmini in aust wrote:
Often overlooked are the rear `helper' springs. These are there to drag the back of the car down > displaces fluid forward > raises front. If they are stretched from old age this can cause front sag. I would look at this first before packing struts or replacing bags.
:!: kazjim has a pile of these springs I think. :wink:


See J_A_M....if you mention everything it might be (like I did) you get the Doc to agree with you every now and then :!: :lol:

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 Post subject:
PostPosted: Sun Feb 27, 2005 6:27 pm 
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I was gonna say swap the bags from back to the front, but looking at those springs is a good idea - maybe even making up some new ones a bit stronger? I couldn't get my blue S to sit level, even with spacers at the front, so I just dropped it on to the bump stops.... :roll:

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 Post subject:
PostPosted: Sun Feb 27, 2005 6:29 pm 
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skssgn wrote:
I was gonna say swap the bags from back to the front, but looking at those springs is a good idea - maybe even making up some new ones a bit stronger? I couldn't get my blue S to sit level, even with spacers at the front, so I just dropped it on to the bump stops.... :roll:

You don't want 'em stronger, just a bit shorter.. :wink:
:idea: You can then add washers on the top stud until you're happy!

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PostPosted: Sun Feb 27, 2005 6:47 pm 
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by stronger I meant harder to stretch out.... would there be any benefit in that? would it be like having an anti-sway bar?

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 Post subject:
PostPosted: Sun Feb 27, 2005 8:32 pm 
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hmmmm....interesting stuff......i'll sus it all out. Not knowing anything about hydro, I never would have thought about looking at those springs.

Cheers guys....and if I need some replacement items, i'll give kazjim a buzz. :wink:


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 Post subject:
PostPosted: Sun Feb 27, 2005 8:42 pm 
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skssgn wrote:
by stronger I meant harder to stretch out.... would there be any benefit in that? would it be like having an anti-sway bar?

Don't think so, this spring is a ride height balance thing really. Hydro's claytons sway bar is a pair of comp rear bumpstops. The car sits on these and they add to the spring rate (if hydro has such a thing) when cornering.
p/no C-AJJ3313. $72 or so from Karcraft etc. :wink:
Don't put 'em on front (different kit) unless you are going rallying- they made mine sit too high. +ve front camber is not good!

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 Post subject:
PostPosted: Sun Feb 27, 2005 8:44 pm 
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And you would not think those spring would do much ay...Wow
Maybe chuck some inch packers with the springs and see what it does to the front..Of course measure the front and rear prior :idea:

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 Post subject:
PostPosted: Sun Feb 27, 2005 9:10 pm 
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gafmo wrote:
And you would not think those spring would do much ay...Wow
Maybe chuck some inch packers with the springs and see what it does to the front..Of course measure the front and rear prior :idea:

No good Gaf- you need 'em shorter so they pull the ass down more, that lifts the front by displacing fluid forward to the front bags.

They are `tension' springs- just like yer clutch return but a bloody sight stiffer! :lol:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


Last edited by drmini in aust on Sun Feb 27, 2005 9:11 pm, edited 1 time in total.

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 Post subject:
PostPosted: Sun Feb 27, 2005 9:11 pm 
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I actually like the front ride height...but the ass end is sitting up really high!!...or so it looks, but the rear is probably normal :lol:


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 Post subject:
PostPosted: Sun Feb 27, 2005 9:13 pm 
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J_A_M wrote:
I actually like the front ride height...but the ass end is sitting up really high!!...or so it looks, but the rear is probably normal :lol:

Hydros have to ride higher in the rear, or you won't carry any load without its ass dragging.
And the bum squats a bit under acceleration too. 8)

<edit> fill the fuel tanks, you cheapskate! :lol:

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 Post subject:
PostPosted: Sun Feb 27, 2005 9:25 pm 
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Some times I'm blond :oops:

Put some carpet down in the boot and 10 bricks and see what happens :idea:

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