Vehicle & Technical > Discovery

suspention question

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Range Rover Blues:
I get what you're asking, DO NOT under any circumstances try driving the car with one of the radius arm bolts missing.

What you need to do is bin whatever bushes you have in there and fit either 3.5 carb spec RRC metalastic bushes or Defender bushes, both of which are single layer soft rubber bushes to allow maximum deflection of the rubber.

When the EFi was introduced IIRC the RRC bushes were stiffened, the 2 layer type you see on standard cars today.  This was an effort to get some roll stiffness into the car, as it was going that bit faster. Later ARBs were introduced onto the 3.9, around 1991.  I can't remember if the bushes were changed back, but anyway you need the most compliant bushes available, same with the chassis end, you need rubber.

boss:
chris9119 dont know what post you were reading but the spell checker was used!

the bushes in there at the moment are the landrover bushes that were fitted at the factory(as far as i know)....definatley need replacing! i have a set of polly bushes but the wrong ones and are too hard, i was thinking about slotting bushes but now those void bushes are around i dont haveto bother.
can anything else be done?

clbarclay:
RRB
The later RRC with ARBs did go back to a single peice of rubber for the metalastic radius arm bushes, thats why I fitted some. It saved the effort of changing radius arms and axle to be able to fit early RRC or 90 narrower bushes. Having said that I'm sure with some carful grinding and some washers you can fit narrow bushes to wide arms and axle.


Dan
I take it you have narror arms and rubber bushes? if so try changing you radius arms to wide and fit stiff poly bushes and see what effect it has on the front suspension flex. It made a very obvious differeance to mine just by changing from polys to the single piece metalastic bushes.


Another point worth noting, rubber becomes stiffer with age, so very old bushes won't help either.


--- Quote ---i have a set of polly bushes but the wrong ones
--- End quote ---
Are they orange and cost around £50?

boss:
no there red and i think i payed alot more than that :shock:
would like to make a giant a-frame which incorporates the radius arms and makes it all into a 1 link....but no time and that would be bloody hard!

extreme90:

--- Quote from: clbarclay on February 19, 2008, 20:40:48 ---RRB
The later RRC with ARBs did go back to a single peice of rubber for the metalastic radius arm bushes, thats why I fitted some. It saved the effort of changing radius arms and axle to be able to fit early RRC or 90 narrower bushes. Having said that I'm sure with some carful grinding and some washers you can fit narrow bushes to wide arms and axle.


Dan
I take it you have narror arms and rubber bushes? if so try changing you radius arms to wide and fit stiff poly bushes and see what effect it has on the front suspension flex. It made a very obvious differeance to mine just by changing from polys to the single piece metalastic bushes.


Another point worth noting, rubber becomes stiffer with age, so very old bushes won't help either.


--- Quote ---i have a set of polly bushes but the wrong ones
--- End quote ---
Are they orange and cost around £50?

--- End quote ---

nope
mine are f*** off scorpion arms which are wide units
also
polys are c***
last a few months then are good to go into the bin  :shock: wont use them again apart from certain places
for reference, they were " polybush dynamic orange " not cheap inferior clobber
sand gets inbertween the liner and bush, then mixed with water it makes a rather fine grinding paste  :lol:
damn things  :evil:

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