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I have the ubiquitous Koni adjustable (rebound dampening not compression) dampeners (the ones with the 3 different spring perch heights) on my darling NA8 which once used to be on PCMX5's car. I have no major problems with them but i know from my bikes that rebuilding dampeners (changing the oil) makes a significant difference to the dampeners performance.
Can these units be rebuilt by the home mechanic, more to the point, does anyone have information on how to rebuild them?
I am after dissassembly/reassembly instructions, type and weight of oil used, and is it possible to change the dampening (ie. enlarge or weld/decrease orifice hole size)?
I will post the units model designation as I am unsure if they are single or twin chamber design. I assume they are single chamber.
Has anyone done this before? i know an authorised Koni service centre will do this but dollar$$ is what I am trying to save.
I can do m/cycle forks (USD and conventional) in my sleep but I have never tried a car unit before.
cheers

I think they'd be hard to DIY rebuild, but they are certainly rebuildable. They're (AFAIK) a twin-tube design, and are pressurised, the latter making DIY difficult...

Talk to the local supplier... (Toperformance)

Hell ,Michael they shouldn't be stuffed already!!

The fronts had only done about 10-12k and the rears about 20K(all very gently dríven too!)

Peter.

pcmx5 wrote:Hell ,Michael they shouldn't be stuffed already!!

The fronts had only done about 10-12k and the rears about 20K(all very gently dríven too!)

Peter.

Peter, the shocks are ace!! They are DEFINATELY not stuffed.
I am just wanting to "play around" with dampening. You know, fine tune things et al.
I really just wanted to increase the compression dampening (as the Eibach springs are quite soft) via some heavier weight oil. With m/bike forks, an oil change is super-easy. Playing with valving and seals gets a touch harder.
So....I just wanted to find out if it was possible to change the oil....easily.
It appears not

So, I am just going to turf the Eibachs and put in my original lowered Kings in.

BTW Peter, when is your next early morning breakfast run to Apollo Bay happening??

pcmx5 wrote:
The fronts had only done about 10-12k and the rears about 20K(all very gently dríven too!)

Peter.

Ummm, just as an aside....where did you pull

pcmx5 wrote:(all very gently dríven too!)

from? I have seen how you drive!!

Hi Michael,

I am thinking about going to AB again on Sat. morning unless it is pissing down.

I will have a couple of mates going and we will probably leave around 6.30-45 so we avoid all the terrorists, breakfast at the bakery and be home around 9(probably inland).

If you are interested give me a call later in the week.

We have our 3 dayx2 auditors quality system audit this Thursday-Friday so I will be looking to break out this weekend.

My pace is a factor of my advanced years,justslowing down gradually!!!!

Peter.

fastfreddygassit wrote:So, I am just going to turf the Eibachs and put in my original lowered Kings in.

I'm sure that there are any number of owners who would beat a path to your door to swap their Kings for your unwanted Eibachs.