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SirAndy |
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Resident German ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 42,205 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California ![]() |
so on my way to the AX saturday i noticed a "clunk" sound from the frontend, like i had lost something.
i had this happen before, bolt came lose on the swaybar droplink, so i thought that was it ... when i get to the AX site and change tires, i see the droplink hanging all weird so i take a closer look and the lower hime joint has broken. the thread just snapped off the joint. i then continue to change the tire on the other side and it's exactly the same! (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) both hime joints broke in the exact same location. that seems too odd to be coincidence. i must have hit something *really* hard for that to happen, but i can't remember running over any bad potholes etc. anyone else had problems before? (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif) Andy |
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eeyore |
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Senior Member ![]() ![]() ![]() Group: Members Posts: 889 Joined: 8-January 04 From: meridian, id Member No.: 1,533 Region Association: None ![]() |
I figure the lower heim joint broke off while it was pointing inward, at full compression.
This is hard for me to explain, but I think the problem is the 90 re-orientation of the u-tabs and I think the axis of the heim joint on the a-arm needs to be parallel to the axis of the a-arm itself. If you put a big plate (green lines) into the rotated u-tab, you'd see that the plane of the plate (especially the top) move inward and outward through the a-arm travel. However, the top of the droplink in fixed in its left-right orientation, and at some point the droplink tries to bend. The forces on the utab (yellow) push down, but since the u-tab is at an angle, 'down' is also 'inward'. (The left side of the picture is at ride height, the right side is my interpretation of a-arm, u-tab orientation at full compression.) Attached image(s) ![]() |
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