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Shops sometimes over-torque lug nuts #4720310
04/08/18 08:47 AM
04/08/18 08:47 AM
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
jorton Offline OP
jorton  Offline OP
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
Can over-torqued lug nuts cause ride issues at high speeds? At 80 my new tires feel like they're bouncing.
Yokohama Avid Touring S


"If everything seems under control, you're just not going fast enough."
- Mario Andretti


Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720312
04/08/18 08:49 AM
04/08/18 08:49 AM
Joined: Jun 2003
Posts: 33,071
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,071
ME
Rarely but IF you have lug-centric (aftermarket) rims without centering rings AND if they ran the first lug home hard before putting the rest on the rim could be cocked on the hub face making a bad ride.

Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720320
04/08/18 09:01 AM
04/08/18 09:01 AM
Joined: Aug 2013
Posts: 328
Alberta
tcp71 Offline
tcp71  Offline
Joined: Aug 2013
Posts: 328
Alberta
Overtightened lug nuts can cause warping of the rotors and vibrations. Especially tightened along one side first.

Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720331
04/08/18 09:10 AM
04/08/18 09:10 AM
Joined: Sep 2004
Posts: 7,518
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,518
Marshfield , MA
Some ham fisted idjit over torqued the Rat's front studs until they stretched and spun in the hub. I had to split the nuts on 3 studs to get the LF wheel off


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Shops sometimes over-torque lug nuts [Re: tcp71] #4720342
04/08/18 09:21 AM
04/08/18 09:21 AM
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
jorton Offline OP
jorton  Offline OP
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
Originally Posted By: tcp71
Overtightened lug nuts can cause warping of the rotors and vibrations. Especially tightened along one side first.

Is rotor warp permanent or will it return to normal when I re-torque? Does over-torquing have similar effect on rear drums?


"If everything seems under control, you're just not going fast enough."
- Mario Andretti


Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720362
04/08/18 09:49 AM
04/08/18 09:49 AM
Joined: Sep 2008
Posts: 76
St. Catharines Ontario Canada
03s Offline
03s  Offline
Joined: Sep 2008
Posts: 76
St. Catharines Ontario Canada
Wheel nut torque specs

http://www.jegs.com/images/photos/300/326/326-wheelnuttorquespecs.pdf

or check your owners manual

Last edited by 03s; 04/08/18 09:50 AM.

2005 Chevrolet Optra
Kendall GT-1 Max with Liquid Titanium 5W-30
Fram Ultra XG3387A
Re: Shops sometimes over-torque lug nuts [Re: 03s] #4720382
04/08/18 10:09 AM
04/08/18 10:09 AM
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
jorton Offline OP
jorton  Offline OP
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
Thanks for the chart. I replaced 2 piece nuts on the jeep with one piece Dorman nuts yesterday.


"If everything seems under control, you're just not going fast enough."
- Mario Andretti


Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720391
04/08/18 10:22 AM
04/08/18 10:22 AM
Joined: Nov 2017
Posts: 103
Winnipeg
Uphill_Both_Ways Offline
Uphill_Both_Ways  Offline
Joined: Nov 2017
Posts: 103
Winnipeg
Last year, thanks to over-torquing, the vibrations grew so bad I replaced all the rotors (after trying to live with it for six months). The next day I bought a torque wrench.

The chain where I bought the tires offers free wheel rotations, so now, as soon as the car is back in the parking lot after a rotation, I loosen every nut, then give the wrench a workout. A hundred kilometres later I do it again, all of it a real pain in the winter — and elsewhere.

I'll never buy tires there again. But now, because of the wrench, I don't have to take any tire shop's word for it — and I won't.


2008 Impala 3.5
Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720397
04/08/18 10:32 AM
04/08/18 10:32 AM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
Originally Posted By: jorton
Originally Posted By: tcp71
Overtightened lug nuts can cause warping of the rotors and vibrations. Especially tightened along one side first.

Is rotor warp permanent or will it return to normal when I re-torque? Does over-torquing have similar effect on rear drums?


It’s permanent.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720399
04/08/18 10:35 AM
04/08/18 10:35 AM
Joined: Sep 2010
Posts: 6,987
Texas
4WD Online confused
4WD  Online Confused
Joined: Sep 2010
Posts: 6,987
Texas
Son’s F150 has 89k and a couple weeks after Firestone put a set of AT’s on … got a brake warning...

Pulled both a F/R wheel to check pads (truck bought used, no history) and the factory wrench had no chance.
(Son is 6-3’ and 260) …even with a longer cross wrench it took all either of us had to break them = crazy … and all dozen we took off were like that …
Put the cross wrench in the truck …

Re: Shops sometimes over-torque lug nuts [Re: Uphill_Both_Ways] #4720491
04/08/18 11:52 AM
04/08/18 11:52 AM
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
jorton Offline OP
jorton  Offline OP
Joined: Jul 2003
Posts: 3,097
San Antonio, TX
You just can't trust anyone. It's never too late to try to do things right.


"If everything seems under control, you're just not going fast enough."
- Mario Andretti


Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720526
04/08/18 12:38 PM
04/08/18 12:38 PM
Joined: Dec 2013
Posts: 849
Minnesota
Lapham3 Offline
Lapham3  Offline
Joined: Dec 2013
Posts: 849
Minnesota
I just don't let anyone touch lug nuts or drain plugs. The most important fasteners usually cranked on by the lowest paid young fellas too often thinking about girls, ect and not what they're doing.

Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720584
04/08/18 01:55 PM
04/08/18 01:55 PM
Joined: Mar 2008
Posts: 6,800
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 6,800
USA
Shops always over-torque lug nuts. FTFY smile

The only exceptions I know of are DT and Walmart, and possibly a small number local/regional places.

Re: Shops sometimes over-torque lug nuts [Re: jorton] #4720616
04/08/18 02:32 PM
04/08/18 02:32 PM
Joined: Jun 2015
Posts: 4,225
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,225
New England
The indy tire shop I like hand torques wheels and makes customers sign a little slip saying they will come back for a retorque in about 100 miles.
I just take care of it with my own torque wrench, and there are almost always a couple of nuts that actually need it. I have noticed the same thing when I swap my own wheels.


2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Shops sometimes over-torque lug nuts [Re: jorton] #4723551
04/11/18 11:52 AM
04/11/18 11:52 AM
Joined: Jul 2014
Posts: 1,657
Canada
camrydriver111 Offline
camrydriver111  Offline
Joined: Jul 2014
Posts: 1,657
Canada
How does a rotor warp by over torquing? It's a thick slab of cast iron.

I think you would damage the threads, studs/bolts, or the wheel before damaging the rotor.


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