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Thread: Bang:

  1. #1
    willvine Guest

    Bang:

    When I go over speed bumps at approx 20 kms approx i get a bang from the rear end. I am assuming the rear wheels momentarilly break ground traction and the traction control slams the airborne wheels brakes on therefore the loud bang!!! . The disco has always done this but since fitting poly-airs has been more noticeable. also when I drive out off the servo in a hurry and miss the lay-backs , the same noise.. Any ideas would be great.

    Thanks in advance.

  2. #2
    Join Date
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    do you have a rear step?

    mine touched down once on a really big hump (i saw that one too late). basically as the rear suspension gets compressed by the cars weight after clearing the bump the step hits the bump.

    georgie

  3. #3
    willvine Guest
    Quote Originally Posted by geoz View Post
    do you have a rear step?

    mine touched down once on a really big hump (i saw that one too late). basically as the rear suspension gets compressed by the cars weight after clearing the bump the step hits the bump.

    georgie

    Yea I have a rear step , but cant see any signs of recent scraping on the underside of the step.

    I seem to get the noise every time the rear wheels break ground, even over a very small bump.



    GO THE BLUES

  4. #4
    willvine Guest
    Quote Originally Posted by willvine View Post
    When I go over speed bumps at approx 20 kms approx i get a bang from the rear end. I am assuming the rear wheels momentarilly break ground traction and the traction control slams the airborne wheels brakes on therefore the loud bang!!! . The disco has always done this but since fitting poly-airs has been more noticeable. also when I drive out off the servo in a hurry and miss the lay-backs , the same noise.. Any ideas would be great.

    Thanks in advance.
    i GUESS I should express that i have a 99 disco2 ,had rear air bags. then fited coils then fited poly airs and billies.

  5. #5
    Join Date
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    check your A Frame joints.
    Dave

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  6. #6
    tombraider Guest
    Quote Originally Posted by willvine View Post
    i GUESS I should express that i have a 99 disco2 ,had rear air bags. then fited coils then fited poly airs and billies.
    Did you get the extended length billies?

    I bet no, and your topping your shocks over the bump.

  7. #7
    willvine Guest
    Quote Originally Posted by Blknight.aus View Post
    check your A Frame joints.

    Hey Blknight

    I am shure the disco 2 doesn't have the a frame joints .

  8. #8
    willvine Guest
    Quote Originally Posted by tombraider View Post
    Did you get the extended length billies?

    I bet no, and your topping your shocks over the bump.
    I dont think so . but The coils and shocks were fitted by a LR specialist so I hope so. In My first post I did mention that the disco had allways done this with the factory air bags with the original shocks. so don't know why it is still doing it.

  9. #9
    Join Date
    Feb 2004
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    NO A FRAME JOINTS ON A D2!!!!
    OK a couple of checks.Mine was doing this on speed humps when I first got it.The watts linkage hade been re-bushed,it had been put in upside down,one of the links was hitting the diff!!!!
    Next,I get clunks and bangs since my polyairs went in.My spacers dont sit flat and refuse to do so,Ive levered them to where they are meant to be but they conform to the spring pitch,Im guessing there is a possible clung here.
    Also after speaking with Ken,he inherited a clunk with a new suspension kit.Im wondering if the watts link bushes are worn to one position,when disturbed with new suspension,or polyairs in your case which equates some sort of lift,the clunk may be in there!!!!
    Andrew
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  10. #10
    willvine Guest
    The only reason why i could think it is related to the TC stopping the rear wheels is the TC light will come on for a second and i here the TC growl.

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