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Scion FR-S / Toyota 86 GT86 General Forum The place to start for the Scion FR-S / Toyota 86 | GT86 |
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09-06-2020, 06:25 PM | #15 |
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Twins call for 89 ft-lb, which is pretty low torque for your typical 1/2" drive wrench or tire iron. I guess people think that since the lug nuts hold the wheels they need to be extra tight, thus easily over torquing them.
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09-06-2020, 06:54 PM | #16 |
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I'm surprised there are people who don't use a torque wrench. Who does'nt love a torque wrench?
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09-06-2020, 10:17 PM | #17 | |
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I'm surprised shops that do thousands of tire changes using only an impact gun with no torque sticks never see failures, yet enthusiasts who are being careful break shit all the time. My first job ever was at a shop, just doing basic maintenance. Nobody had torque wrenches or nice tools- but no customers ever came back complaining. |
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09-06-2020, 10:36 PM | #18 |
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Imho debris gums up the threads and it's easy to get little metal shavings on the threads if you're not super careful putting the wheel on, any little slide creates debris.
I put arp studs on and have changed my wheels more than I did with the stock studs without issue. Lesson learned. |
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09-07-2020, 01:48 AM | #19 |
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The torque wrench...
has anyone noticed that shops show the customer the use of a torque wrench on the customer's wheels as a last step...AFTER the lug nuts have been spun on tight with a 1/2 inch drive impact wrench ? Sure the torque wrench clicks...as those lug nuts are already torqued way beyond the proper value. It's all for show. The only way to get the proper torque at home is to tighten the nuts by hand, then do the final torque by hand, using the torque wrench. The average half inch drive impact wrench, pneumatic or battery powered, would over torque those lug nuts every time. |
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09-07-2020, 02:03 AM | #20 | |
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I use impact gun to get the lugs on, but I only do it after I hand thread it on. If you have a variable speed impact driver you can use it to speed up the process without overtorquing it. |
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09-07-2020, 03:33 AM | #21 | ||||
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I suspect any higher incidence of problems with the lugs and studs probably results from this group swapping wheels and tires more often than your average Camry. Consider that if you go two years between taking the wheels off your Camry but have your FRS wheels off every six months, you have quadrupled your opportunities to damage the studs. Some of you are swapping tires every weekend.
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Lots of people. Quote:
And some do see failures. I know because a shop failed one of mine right off onto the floor. Quote:
For the overwhelming majority of cars, removing lug nuts is not a frequent occurrence. 99.99% of the customers are not going to realize you fucked up their wheels until they're stuck in a dark parking lot with a flat 18 months later and either can't get the lug to break loose or end up breaking a stud trying. Even then, they may not realize it was your overzealous tightening that caused it. And even if they do realize it, 1) it's been 18 months, so how do they prove you were at fault, and 2)why the hell would they take it back to the guys who fucked it up to have them fuck it up again? OF COURSE you're not going to have customers coming back in to complain. The actual consequence is almost completely separated from the cause. It's the perfect job for avoiding complaints about incompetence. |
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09-07-2020, 06:40 AM | #22 | |
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09-07-2020, 03:12 PM | #23 | |
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The majority of broken studs I have seen had little to do with over torque. People side load them when putting them on and off and snap them. They have very poor side stress resistance due to the hardening. Easy enough to tell since ones that are over torqued will twist off flush with the hub since that is where the stress is. Ones that snap off at or outside of the rim were side loaded. It is very easy to do without even realizing even by hand. I would be willing to bet that is what happens to most of the guys that have it happen frequently even if they want to blame everything and everybody else. Over torqued ones are more likely to strip or stretch threads than to just snap off.
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09-07-2020, 05:49 PM | #24 | |
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Hope I'm not jinxing myself but I've had no problems with the OEM studs. They're 8 years old now and I've taken my wheels off dozens of times because of track use/maintenance. One thing I did early on was replace the OEM lugs nuts with Gorilla closed end ones. Also used a torque wrench and hand tools. So far so good.
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09-09-2020, 07:42 PM | #25 | ||||
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People are just soap boxing the obvious and not reading anything.
I and several others have stated they HAND THREAD the lug nuts, and then HAND TORQUE WRENCH to 89 lbs, and DO NOT use an impact wrench, yet have still had a seized stud. So, it's not user error. Anyone have a URL to an OEM looking high quality lug nut ? Quote:
If you've removed your wheels constantly, that is probably the reason you never got a seized lug. My wheels were not removed for 3 years and I had a seized lug. Not user error. I still have OEM lug nuts. What did you replace your lug nuts with? Quote:
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I had no idea OEM lugs are 2-piece crap with a vanity cap. They are going in the trash. I had another car where I had to hammer a smaller socket over the broken lug cap to get it off. Replaced every lug with McGard. Want to do the same with BRZ. Quote:
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09-09-2020, 10:05 PM | #26 |
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https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 To be installed once i get the ARP studs installed.
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09-09-2020, 10:27 PM | #27 |
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I used OEM nuts on my 86 for years, I did get some Project Mu nuts but only because I got them really cheap.
And then I binned it.....coincidence.....??????....LOL
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09-09-2020, 10:31 PM | #28 |
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That's interesting - perhaps the lug nuts seize to the studs due to corrosion? If people break studs only when unscrewing the nuts, this might cause it (as stated before, over torquing should lead to stretched studs or stripped threads, not seizure).
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