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Mick
PostPosted: Wed Apr 24, 2013 5:06 pm 
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I picked up a set of adjustable front suspension on eBay. They're second hand, but I blasted them back, had them crack tested and then refinished. I scrounged through my plated nuts and bolts and even found a complete set of hardware. They turned up very nicely.

Now, I've not played with adjustable front suspension before. Before I bolt them on, can anyone tell me what the initial measurements I should set the arm lengths to before taking it to be aligned, and what are the reference points for the measurements?

Image

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simon k
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PostPosted: Wed Apr 24, 2013 5:19 pm 
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my not just pull the old gear off and set them up the same lengths?

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Harley
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PostPosted: Wed Apr 24, 2013 5:20 pm 
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Front tie bars - centre of 5/16" hole to the washer face the first rubber bush butts up to is
366.3mm / 14.4in.

Lower arms are a bit harder, because you don't have the full diameter / width of the original cast component. Distance from the centre of the 1/2" ball joint hole to the axial and radial centre of the mounting bore is 261.8mm / 10.3in.

:D
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Mick
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PostPosted: Wed Apr 24, 2013 5:46 pm 
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Thanks Harely. 8)





simon k wrote:
my not just pull the old gear off and set them up the same lengths?


I won't have much time to fiddle around when I go to put them on this Saturday. I'll have maybe an hour. This means I can get it right tonight ready to go. I don't much time to f about. Thanks

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Last edited by Mick on Wed Apr 24, 2013 6:38 pm, edited 1 time in total.

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FNQ
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PostPosted: Wed Apr 24, 2013 5:46 pm 
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Sorry mick no further help on your request but they did come up looking great.

Are the rose joints okay for road registered cars?

Cheers Darryl
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Mick
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PostPosted: Wed Apr 24, 2013 5:55 pm 
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whistles...




Probably not...

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mini_mad_matt
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PostPosted: Wed Apr 24, 2013 9:36 pm 
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Rose joints aren't legal on QLD roads so probably the same for the other states. But if you are going to be picky, modified suspension arms are illegal as well (without approval) so yea, just keep whistling :D
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Mick
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PostPosted: Wed Apr 24, 2013 9:55 pm 
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http://www.youtube.com/watch?v=uR6pEKAHPo0

http://www.youtube.com/watch?v=dD_tPNYgy58

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FNQ
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PostPosted: Thu Apr 25, 2013 1:08 pm 
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Gotta love cockatiels.


it would seem a bizarre rule - especially considering the overall modification would definitely seem to improve handling and therefore safety.
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drmini in aust
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PostPosted: Thu Apr 25, 2013 2:13 pm 
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The rule is there because Rose joints wear. OK for the track where you do no miles, but once they start to wear, they can get S/H very quickly.

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Mick
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PostPosted: Thu Apr 25, 2013 2:35 pm 
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These joints are in great shape, they look however like they can be replaced. I've seen CBC and Blackwoods selling rose joints and might take a look.

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drmini in aust
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PostPosted: Thu Apr 25, 2013 2:45 pm 
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You used to be able to get rubber boots for them, not sure if still available.

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16sth
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PostPosted: Thu Apr 25, 2013 4:00 pm 
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mini_mad_matt wrote:
Rose joints aren't legal on QLD roads so probably the same for the other states. But if you are going to be picky, modified suspension arms are illegal as well (without approval) so yea, just keep whistling :D


http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/pdf/NCOP11_Section_LS_Tyres_Suspension_Steering_V2_1Jan_2011%20v3.pdf wrote:
Heim joints are made to a variety of standards in terms of strength and durability. Early
versions were prone to failure and had a poor durability history. As a result Heim joints must
only be used in critical applications such as steering and suspension if they meet all of the
following criteria:
 The movement of the rod/component to which the joint is attached does not exceed the
allowable articulation angle of the Heim joint as specified by the Heim joint
manufacturer;
 The Heim joint does not hang-up on existing components; and
 A signatory confirms that the Heim joint has sufficient durability and strength in all
directions for its intended purpose.
It is strongly recommended that Heim joints be protected by suitably designed dust covers to
reduce the risk of premature wear.


OK, I'm confused. The NCOP suggests they can be used so long as the engineer allows it. What am I missing?
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Mick
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PostPosted: Thu Apr 25, 2013 4:27 pm 
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I think the last says it all, it's either ADR'd from the factory with it, has aa Australian ADR sticker on it stating its approval for road use, or an engineer has signed off on it's safe use having also referred to the manufacturers specifications for the joint.

At least for WA.

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mini_mad_matt
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PostPosted: Thu Apr 25, 2013 5:05 pm 
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I admit i may be wrong after reading that NCOP section.

The part about early versions prone to failure make it sound as though once upon a time they weren't allowed.

I was under the impression they weren't allowed, not because of poor lifespan, but the ability for them to be installed incorrectly which would be a very bad thing.

But it sounds like maybe you are allowed rose joints, provided they are installed correctly and that someone official says it's alright
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