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-   -   Control arm bushings preload (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/75171-control-arm-bushings-preload.html)

shooter 08-22-2010 10:08 AM

Control arm bushings preload
 
I'm having trouble preloading these bushings. I'm redoing them because my steering wheel is going nuts again after 8k. I think it's because I wasn't aware they needed to be preloaded before tightening. Problem is that when I let her down they keep twisting. I'm using a lift, is there something I need to do to preloaded them properly besides just let it down and tighten???

mywidebody02 08-22-2010 10:40 AM

thats why u need to drop the truck before u tighten them. if not they will try to twist when they are tighten and put stress on the bushing and cause premature failure

shooter 08-22-2010 11:05 AM

That's why I'm doing them again right now. When I drop the truck they stilllook like their twisting?

Weasel 08-22-2010 02:38 PM

You may need to loosen the bolt through them a little more as the center sleeve in the bushing has "teeth" that bite into the metal when tightened.

shooter 08-24-2010 08:25 AM

Weasel you were right. I pulled the bolt out, let the arm swing down and opened the slot that it fits into with a pry bar. Only move a couple of mm but that's all it needed. This is my second attempt due to premature failure and what a difference preloading before tightening does!


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