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Help - Koni 2812 - stuck

Discussion in 'RT/10 and GTS Discussions' started by JBenko, Apr 27, 2003.

  1. JBenko

    JBenko Enthusiast

    Jul 26, 2000
    Stillwater, MN USA
    This weekend I am trying to adjust the shocks for the first time on a '99 ACR with 7k miles that I picked up late last fall. I was able to find adjustment info on the Koni website, but am unable to make adjustments because all 4 shocks, both bump and rebound, seem "gritty" and are somewhat stuck. I can wiggle them a little but cannot get them to move to the next click position (either + or -). Koni web site says to not force them. I am guessing that they are probably set soft and if anything I am applying a little more pressure when trying to move towards the +. I haven't pushed real hard yet. I sprayed the "dials" with a little WD40. Any other ideas ??? I would prefer right now to not get into taking them off / trying to take them apart. I am assuming that the position of the shock (under weight of car vs. on jack stands) shouldn't affect it ???
  2. GTS Dean

    GTS Dean Enthusiast

    Jul 22, 2000
    New Braunfels, Texas

    I would suppose that they have gotten fouled with grit from disuse. I just had the top eyes off my Penskes this week installing some new bump rubbers and found a good bit of sand and some rust on the rebound adjusters. You should hit them with some compressed air, then some solvent, then air again. I would stay away from brake cleaner here, Penske strongly advises against it for their shocks. I've found that plain old diesel fuel is a very good penetrant for stuck and rusted parts - much better than WD-40 and some other similar products.

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