hadyn Posted October 1, 2007 Share Posted October 1, 2007 I unfortunately snapped one of my rear wheel studs tonight. Is the car OK to drive until I fit a new one? Quote Link to comment Share on other sites More sharing options...
Pete Posted October 1, 2007 Share Posted October 1, 2007 I know it's not what you want to hear, but I really wouldn't if it were me. It's not worth the risk. Quote Link to comment Share on other sites More sharing options...
Mike M Posted October 1, 2007 Share Posted October 1, 2007 I'd say ok to drive with 4 but dont go racing any lambos till its replaced. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 1, 2007 Share Posted October 1, 2007 Hmm well mine has been running since I bought it with a trashed wheel stud including 2 track days on the front wheel which has more loading on it during steering than rear wheels do. Not recommended but it obviously works OK. Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted October 1, 2007 Share Posted October 1, 2007 Its fine. I have been on 4 for almost a yr I just check my nuts regularly. Also it passed an MOT fine as well and isnt a fail. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted October 1, 2007 Share Posted October 1, 2007 Wait a second, this is tech and we are advocating driving with a snapped stud? Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted October 1, 2007 Share Posted October 1, 2007 Wait a second, this is tech and we are advocating driving with a snapped stud? You're right this shouldnt be in tech. We arent recommending driving on 4 nuts we arent stupid however it is safe just not perfect. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted October 1, 2007 Share Posted October 1, 2007 however it is safe I would have to disagree with my learned colleague (with the stripey shirt) Just because you have not crashed doesnt mean its safe. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 1, 2007 Share Posted October 1, 2007 It depends hugely on how it snapped as well. If it snapped whilst applying a normal torque then you'd have to assume that it had been previously over torqued and would in fact have to suspect all the other studs were similarly overtorqued and are in fact damaged and all need replacing. If its snapped because you have gorrilared it and have done the same to the other studs then you will have to replace those other studs as well. I wouldn't then advocate using the car in either of these circumstances until all studs are replaced. Mine is buggered due to being cross threaded by a set of sh*t nuts sent out by my old mate Lucifer back in the day so not stressed studs at all. Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted October 1, 2007 Share Posted October 1, 2007 I would have to disagree with my learned colleague (with the stripey shirt) Just because you have not crashed doesnt mean its safe. True, but I still dont believe it to not be dangerous, if it was it would be a fail on an MOT and a snapped stud is only an Advisory. And me not crashing is fact I dont drive it at moment Quote Link to comment Share on other sites More sharing options...
merckx Posted October 1, 2007 Share Posted October 1, 2007 It depends hugely on how it snapped as well. If it snapped whilst applying a normal torque then you'd have to assume that it had been previously over torqued and would in fact have to suspect all the other studs were similarly overtorqued and are in fact damaged and all need replacing. If its snapped because you have gorrilared it and have done the same to the other studs then you will have to replace those other studs as well. I wouldn't then advocate using the car in either of these circumstances until all studs are replaced. Mine is buggered due to being cross threaded by a set of sh*t nuts sent out by my old mate Lucifer back in the day so not stressed studs at all. I agree 100%. Quote Link to comment Share on other sites More sharing options...
hadyn Posted October 1, 2007 Author Share Posted October 1, 2007 Just used a torque wrench and applied the same pressure as the other 4 studs and it came off Is it easy to replace the stud? I had to recently replace the wheel due to a big curbing taking a chunk out of it Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted October 1, 2007 Share Posted October 1, 2007 http://www.mkivsupra.net/vbb/showthread.php?t=61142&highlight=wheel+stud Quote Link to comment Share on other sites More sharing options...
Guigsy Posted October 1, 2007 Share Posted October 1, 2007 i drove with 4 studs for months. it was fine. but get it changed asap Mine was totaly snapped. not threaded badly. a clean break. all the other nuts were fine though. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 2, 2007 Share Posted October 2, 2007 I'd consider changing the lot then as they may have been previously heavily overtorqued. Wheel studs are fairly sturdy bits of kit and if correctly torqued should never shear. I must get round to replacing the one on my car thats buggered. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted October 2, 2007 Share Posted October 2, 2007 all my others came off quite easy. it was just that one. which was odd. Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 2, 2007 Share Posted October 2, 2007 "After a funny creaking noise turned into a cracked stud that I was lucky to find early, I thought (what with 600bhp being on tap these days) I would swap all my rear wheel studs. No sense messing about especially as the studs are under £2 each." Sounds a lot more sensible than "Yeah carry on driving it's safe" -Ian Quote Link to comment Share on other sites More sharing options...
Missile Posted October 2, 2007 Share Posted October 2, 2007 I guess it was made with 5 studs for a reason ? Quote Link to comment Share on other sites More sharing options...
georigg Posted October 3, 2007 Share Posted October 3, 2007 OK, a little bit of the Techy stuff to explain what is happening to wheel studs & wheel rims as the wheel rotates........if you "stand back a bit" and just look at the car as it corners, the inner wheels are actually being pushed onto the disc carriers, so in purely theoretical terms, the studs are not doing anything...but read on! Outer wheels are trying to pull off the disc carriers so the studs are in tension but not a high value, really only the scrub value from the tyres(in theoretical terms). OK, now look closely at the inside wheel as it corners. The bottom of the wheel is pushing against the disc carrier but the top of the wheel is actually trying to pull outwards, ie the side force at the bottom of the wheel is "pivoting" at the wheel centre line, resulting in an outward force at the top. Now consider that the wheel is turning at quite high revolutions, so there is a different part of the wheel at the "bottom" at any instant. So what is really happening is that the wheel rim is constantly being "flexed" first in one direction, then in the other, and the only thing keeping the wheel attached to the disc carrier is the wheel nut. So each wheel nut is being constantly "pulled"/loaded and therefore stressed, before returning to a "no-stress" position at each rev. So leave out one wheel nut/stud and the others have to carry a greater loading. Also, and perhaps more importantly, the wheel rim is constantly being similarly stressed, so miss out a wheel nut, and the nett result over time, will be a buckled wheel rim. Hope this makes things a little clearer. Rgds George Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 3, 2007 Share Posted October 3, 2007 Must admit I saw an external vid of a lexus IS round a track focussed on and past the front nearside wheel. You could see it flexing as he cornered. Quote Link to comment Share on other sites More sharing options...
jazz1 Posted October 3, 2007 Share Posted October 3, 2007 mine broke off i was driving with 4 it was ok, they are piss easy to change its just when you have to tighten them back in;) Quote Link to comment Share on other sites More sharing options...
colsoop Posted October 3, 2007 Share Posted October 3, 2007 I sheared a wheel stud for the front. I took the view that all of them were at a similar state of fatigue and replaced the lot, i also bit the bullet and replaced the hubs at the same time. i think it was about £90 for the hubs complete with wheel studs. Quote Link to comment Share on other sites More sharing options...
jazz1 Posted October 3, 2007 Share Posted October 3, 2007 replacing the wheel studs does not require you to change the hub the wheel studs are compresed, i change every one of my wheels studs recently only cost 20 pounds to buy them Quote Link to comment Share on other sites More sharing options...
colsoop Posted October 3, 2007 Share Posted October 3, 2007 replacing the wheel studs does not require you to change the hub the wheel studs are compresed, i change every one of my wheels studs recently only cost 20 pounds to buy them Read my post again Jazz, i didn't say it was required just that i did it Quote Link to comment Share on other sites More sharing options...
jazz1 Posted October 3, 2007 Share Posted October 3, 2007 Read my post again Jazz, i didn't say it was required just that i did it i know:p Quote Link to comment Share on other sites More sharing options...
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