Stock Koni dampers

[Rickman6]

I'm currently in the process of changing the stock springs on my GTS-2000 for EIBACH lowering springs. Whilst I'm doing this I would like to check all 4 koni shocks are equally
set and adjusted. Found these instructions on the koni's home page.
Remove the shock absorber from the vehicle and hold it vertically with the lower eye or pin attached in a vise. Use clamp plates to prevent damage.
Fully collapse the shock absorber, at the same time turning the dust cap or piston rod slowly to the left (counterclockwise), until it is felt that the cams of the adjustment nut engage in the recesses of the foot valve assembly.
Some shock absorbers include a bump rubber concealed under the dust cover and it must be removed prior to adjusting.

The damper may have already been adjusted. Therefore check whether the shock absorber is in the adjustment position or not by keeping it collapsed and gently turning it further to the left counting at the same time the half turns until a stop is felt. Stop turning then and do not use force.

Keeping the shock absorber collapsed, make 1 half turn (180 degrees) to the right (clockwise). In case of prior adjustment add the number of half the turns previously found. The total range is about 5 half turns.
Pull the shock absorber out vertically without turning for at least 1 cm to disengage the adjusting mechanism. The dust cap or piston rod may now be turned freely.

ADJUSTING DIRECTION
Clockwise = Firmer
Counter Clockwise = Softer


My question is how I'm supposed to remove and install the bump rubber after adjusting / checked the settings of the shocks?
Anyone have experience on this or have some idea ??

 

[Dom426h]

I has a slot(like a donut with one side cut) she just slips on and off. once you see it youll understand. no prob.

like this:

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I recommend stiffening them up about halfway to better match the new springrates.

 

[rocco]

can the stock konis on my 98 be adjusted to be lowered

 

[Rickman6]

Thank you for your reply, However, there is no bumber rubber on the stock Koni damper as per your picture...only a piece of thin plastic "cover" which is split and easy to take off but sureley that's not the " bumber rubber" ?? The only "bumber" I can find is mounted on upper part of the damper rod and does not look like it will come off in a hurry plus putting it back will be a real challenge...anyone know what I'm talking about?

 

[Dom426h]

can the stock konis on my 98 be adjusted to be lowered

nope, you either have to swap out the top spring cap for a lower profile one to get her down ~ a half inch,
or swap out the springs for eibachs to get her down ~ an inch
http://forums.viperclub.org/rt-10-gts-discussions/636355-eibachs.html

 

[RobZilla]

Your rubber bumper is likely just stuck up underneath the top cap. Try prying it out with a flat head screw driver.

 

[Dom426h]

Rick,

Your bumper is likely stuck(where it is supposed to b) in the top shock cap(blue)(red in this pic) but you cant see it because it is hidden by the aluminum spring top cap.(which isnt shown in this pic)

Your bumper is similar to the white part in this pic that is not of a vipers koni shock but rather an image i dug up to illustrate.

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I assume you have not taken the shocks off the car yet?
You will not get to the removing the bumper part utill you get the shock assembly of the car and the springs off the shocks(by compressing the springs and sliding the aluminum cap out)

 

[RobZilla]

can the stock konis on my 98 be adjusted to be lowered

No. The coil overs (Eibach) and/or the cap size is where the lowering comes from.

 

[Rickman6]

The shocks are out and the stock springs off...however, the bump rubber as I see it now is not possible to remove without " slitting" as it is mounted on the rod at Koni upon assembly...so now I have to figure out if it's worth it (probably is as I wish to know for sure the shocks are set properly) and how I can "glue them back" as I guess it is to risky to just leave them out...

 

[GTS Dean]

I'm pretty sure they're slit from the get-go, but it won't hurt to slice them yourself. Just do a clean job with a sharp blade. They will not disappear after you reinstall them. You can also buy new bump rubbers from some of the bigger mail-order houses like Demon Tweeks in Europe.

 

[RobZilla]

There is a slit on the rubber bumper. Look carefully and if you cannot find one then do it yourself with a razor.

 

[Rickman6]

Ok! Thank you guys... I'll let you'll know the outcome!
Brgds

 

[Rickman6]

Dear Viper friends
I found the slit in the bumper rubber and they came off very easy! I set all four shocks the same by timing the rebound ( 40 sec )
From fully depressed and it's roughly 2 turns I.e half the full adjustment as you guys recommended !
The eibach springs are mounted so the next step is to re install the shocks on the car.
Thank you all for your help...the VCA rocks
Brgds Jan