SPL Compression Rod Bushing Issue
#1
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SPL Compression Rod Bushing Issue
Some time after I installed the SPL Compression Rod Bushings on my car, every time I drive on rough road surfaces or Bots Dots when changing lanes, my front suspension sounds like it is ready to come apart. Many times I have gone over all the nuts and bolts on my front suspension to make sure I didn't miss tightening something. Then last week while working on my car( and doing my usual inspection any time I have my car up) I grabbed a comression rod to check for any free play and to my surprise because of the new bushings the rod is free to move up and down a lot. I had never considered this before. The original rubber bushing kept the arm centered and the arm was not free to flop up and down. The ball joint at the other end has enough resistance so that if you push the arm up it stays in place but going over bumps the - and + g-forces make loud clunking sounds as it bangs up and down. Has anyone else had this problem?
#3
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You don't understand. It is not that road noises are being transfered thru the bushing that is the issue. It is the fact that there is nothing to keep the arm from flopping up and down about 2 inches of travel. If you have these bushings try this. With the car just sitting on the ground reach behind the front wheel and grab the compression arm in the middle and move it up and down to see what I mean.It is because the compression rod is formed in an arch and not a straight link that allows this movement.
Last edited by Rick*K; 12-09-2011 at 08:44 PM. Reason: Added more info
#4
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MY350Z.COM
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The arm floats , it is no big deal other than noise. The the arm pivots on its two fixed points it does not cause any deflection in the suspension there for, no need to dampen it.
My rear arms free float also.
My rear arms free float also.
#5
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I talked to Pat at SPL and found out they now include four rubber o-rings to be install on the cone shaped pieces of the bushing kit. They act as bumpers to remedy the problem of the arms rattling over bumps.
#6
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My setup likely will never see the spherical bearing move that much but good to see SPL continuously improving their products.
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#8
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Join Date: Mar 2010
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man...I was gonna put in these things this week but hearing about this sound and possible remedy might make me wait to put in this O ring bumper..Thanks guys,, another thing to upgrade ^_^
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