Snapped off lug bolt from rotor do I need to replace rotor?
01-19-2010, 08:11 PM
#41
01-19-2010, 09:02 PM
#42
Race Director
Something very wrong here....either the rims aren't right or the lug nuts aren't. Do not drive that car hard before you solve that problem. It isn't rust or over tightening...it something else..potentially very dangerous.
good luck and be careful.
good luck and be careful.
01-20-2010, 12:48 AM
#43
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I would certainly replace all the studs since the one that broke was most likely overtorqued and stretched. The others were probably overtorqued as well and to be on the safe side and for your own piece of mind, replace all the studs.
Chris
Chris
01-20-2010, 01:42 AM
#44
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Gents as an update to my initial post it has gotten worse. As of today I have broken off one stud from each of the four wheels.
After inspecting the cracked off stud there was significant rust so they had been cracked for a while before coming off. The last three the were still attacked to the car but just hanging on by a bit and came off when I was cleaning my rims and I noticed some wobble and when I went to tighten low and behold they broke rite off.
My dealer is miffed as to why they are breaking, I do have aftermarket rims and of course they are at the top of the list as far as cluprits go. I don't want to mention names but you can buy more expensive rims than these but I guess there is always a chance that they are an issue. When I called them they mentioned a retaining ring that is a friction fit over the base of the studs left in place after assembly but not required can cause an uneven seating of the rim. I have now ensured that this retaining ring si gone from all the wheel assembelies and I guess we will see what happens next.
If I break another I will be forced to switch back to my factory rims to see if it continues so that we can confirm it is a GM issue or not which I doubt as the odds of it being a chronic issue with GM studs is not that feasable. If I lived closer to to where the rims are manufactured I would ship one back for thier inspection but I don't so I am not at that point yet.
After inspecting the cracked off stud there was significant rust so they had been cracked for a while before coming off. The last three the were still attacked to the car but just hanging on by a bit and came off when I was cleaning my rims and I noticed some wobble and when I went to tighten low and behold they broke rite off.
My dealer is miffed as to why they are breaking, I do have aftermarket rims and of course they are at the top of the list as far as cluprits go. I don't want to mention names but you can buy more expensive rims than these but I guess there is always a chance that they are an issue. When I called them they mentioned a retaining ring that is a friction fit over the base of the studs left in place after assembly but not required can cause an uneven seating of the rim. I have now ensured that this retaining ring si gone from all the wheel assembelies and I guess we will see what happens next.
If I break another I will be forced to switch back to my factory rims to see if it continues so that we can confirm it is a GM issue or not which I doubt as the odds of it being a chronic issue with GM studs is not that feasable. If I lived closer to to where the rims are manufactured I would ship one back for thier inspection but I don't so I am not at that point yet.
Some shops will tell you that Trans Am rims will work on a BMW. Same kind of error-- 120.6 mm vs 120 mm.
01-20-2010, 08:57 AM
#46
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