Do you need to Retorque the lug nuts after tire change?

萨克斯风
楼主 (文学峸)

有多少人真的在遵循做这些了?

 

"Lug nuts must be torqued to the manufacturer’s recommended values, and they must be re-torqued to those values after driving approximately 50 to 100 miles on your new tires after the tire service."

 

 

g
guctota
costco好像换完轮胎第二天要回去。
m
michaelusa2
firestone didn't do it, I guess most shop doesn't

car dealership might take this seriously, I asked Acura dealership, they did do retorque, maybe not wait for a whole day

成功的熊
Yes, I always do。我的1/2drive 力矩扳手基本就干这个用。

https://www.amazon.com/gp/product/B00C5ZL0RU

 

酒中仙
我在costco换过4次新轮胎,从没有让我再回去过
M
MoonRiverMe
我都会再check

重装轱辘后的头100迈内有1/3的时候我发现过20个nuts中有两三个松了10到15度的样子。

原因是装上之后行车的颠簸会造成轱辘松动位移。

M
MoonRiverMe
They always over tighten all the nuts by as much as 200%

To guarantee they never loose never fell off. Lucky you if they don't warp your discs and you can loose any of the nut when you have a flat in the middle of the night in nowhere land.

O
Oneshotkill
和COSTCO标榜$1.5的热狗异曲同工,没见过一本原厂维修技术手册有这个要求,好像只有某些轮店搞这种超值免费服务!:-
M
MoonRiverMe
All four my cars tell you to do it!

What are you driving?

m
mountrobson
相信所有DIYer都会自己做,店家一般会在你取车时告知你,去不去在于个人了
M
MoonRiverMe
就他们给你拧的那个200ftlb我敢保证你一辈子都不会松
m
mountrobson
幸运的是之前我所用过的两家店都是现场手动Torque,一分钟的事,然后偶自己就DIY搞这种基本操作了
成功的熊
我们这片是开几十英里后要去check。我家换胎全在costco,每次都被要求check。但去不去作自己看着办。
v
violinpiano
沒再檢查過 只事先要求他們用torque stick
c
chinomango
definitely!
M
MoonRiverMe
我还专门买了一根150ftlb的torque stick加上impact gun

Mach e 轱辘的nut torque 要150ftlb,我还真没那手劲去拧。

c
chinomango
2000年的手册有提到的,铝制轮毂在开一段后要复查,铁的不需要
m
michaelusa2
how disc and rotor fit each when do torque?

the car is so heavy on the ground, I guess the tire ifself shifting position a bit when do torque,

l
lxny
每次在Costco 换完轮胎都需要回去做的
M
MoonRiverMe
What is supposed to do is

Tighten all the nuts to specifiied torque while the car still on the lift, meaning there is zero weight applied to the wheels. So that the wheels are free to move close to position with the tightening force, that's how the factory does it. If you do it with the car on the ground you need a bigger force to push the wheels inwards. Think about pulling a paper under books vs without books on top of it.

with a typical 80 ftlb of torque I hope it's more than enough to overcome it.

c
chinomango
如没记错丰田2000年的手册是1000公里后再测一次
m
michaelusa2
that explained difference on shop and in car manual

in shop, I see people using gun to tight lug nut when car is lifted;

in car manual, it said final torque is done when car is on ground, it might indicate road side case, not in shop;

M
MoonRiverMe
In practical you can’t tight any nut with wheel free turning

So you can only use your torque wrench as the car on the ground and ignore it.

M
MoonRiverMe
电马的手册如此说

Lug nut torque: 150 lb.ft (204 Nm) (M14 x 1.5). Torque specifications are for nut and bolt threads free of dirt and rust. Use only our recommended replacement wheel nuts and or wheel bolts. Re-torque requirement 2022 Ford Mustang Mach-E: Retighten the wheel nuts to the specified torque within 100 mi (160 km) after any wheel disturbance, such as flat tire repair, tire rotation, changing a flat tire or wheel removal.
T
Tiger666
换过二次,都叫回去再紧-紧。
萨克斯风
这个帖子点击率很高。

上首页了?但我相信大部分消费者不知道这个要求。轮胎店大部分也不指出。

M
MoonRiverMe
恭喜荣登榜首

没几个人会花时间去翻手册的,都是大难临头才去抱佛脚, they better wish themselves luck.

m
mountrobson
这应该是个基本常识,惊讶于有人问,更惊讶于貌似很多人并不知晓
v
violinpiano
買了哪種impact wrench?
M
MoonRiverMe
更基本的常识如定期检查胎压都会有人一年都不查一次的
m
mountrobson
哈哈哈, 没错,直到问题出现,满脑袋问号,“为什么呀........?"
m
michaelusa2
this is after market TPMS I used

my car is old, has not TPMS, finally, I found this one $150, it works good after let shop installed on tire (replacing the tire vavles)

https://www.youtube.com/watch?v=OgLjX1Mc7m8

 


M
MoonRiverMe
I myself is the most reliable TPMS

Never fail to check pressure regularly.

m
michaelusa2
but TMPS give much convenience in real time

what if tire start getting flat when driving on the road?

M
MoonRiverMe
An experienced driver should be able to feel it

I can feel the difference of the ride with wrong tire pressure.

m
michaelusa2
true

L
Lucky_man
Get your own torque wrench, plain and simple.