Honda Car Forum

Joe wrote:
> On 2009-04-24, Clete <lecllaij@halifax.ca> wrote:
>> On Fri, 24 Apr 2009 03:54:15 -0500, Joe
>> <joe@spam.hits-spam-buffalo.com> wrote:
>>
>>> Just wanted to double-check this. I have never tightened the lug nuts
>>> on tires using any method other than "as tight as you can get them",
>>> using either a wrench or an impact gun. Since I am worried about the
>>> potential of warping the rotors, I bought a torque wrench and today I
>>> replaced the wheels on my 06 Civic Si.
>>>
>>> The specs I found said 80 ft/lbs. This is what I did. It really
>>> doesn't seem all that tight, though. Is this the right torque, or was
>>> I mislead? Last thing I want is a wheel coming off at speed, and I DO
>>> like to drive hard... ;-)
>>
>> Lug nuts have no bearing at all on rotors. Torque for lug nuts is for
>> 1. Safety
>> 2. Alloy rims and safety
>
> I am pretty sure you are wrong on this.

indeed.


> I have read many reports, as
> well as talked to several mechanics, who have stated that over-torque
> on lug nuts on single thickness (non-ventilated) rotors will cause
> warping.

not permanent warping, but elastic distortion that makes the brakes
shudder. if you take the disk off, you can see how skinny the honda hub
is. it's strong enough for the job, but has no excess weight, therefore
no excess stiffness. easy to elastically distort under uneven lug nut
loading.


>
> I am no expert, by far, but I have already seen a difference. The
> front wheels were making noise when torqued up, and the noise has
> disappeared at 80 ft/lbs.
>

that's usual.

with alloys though, you need to re-torque them after a few miles from
re-fitting. they tend to move about on the hub a little and the lug
nuts loosen. after that, they're fine.

Tegger wrote:
> "tww1491" <twaugh5@cox.net> wrote in
> news:OurIl.49248$Ji5.41370@newsfe21.iad:
>
>> "Tegger" <invalid@invalid.inv> wrote in message
>> news:Xns9BF7AFE4EB32Dtegger@208.90.168.18...
>
>
>>>
>>> My dad was a mechanical engineer. I still have his old beam-type
>>> torque wrench.
>>>
>>>
>> Still have mine.. was using it back in the 60s when I bought it at
>> Sears.
>>
>>
>
>
> Dad's old beam-type is the "DURO" brand, No. 8099� (no I'm not kidding;
> there really is a one-half symbol in there), made by Duro Metal Products of
> Chicago. The unit calls itself a "Tension Indicator". Reads up to 100 ft
> lbs.
>
> Here it is:
> <http://www.tegger.com/hondafaq/misc/torque_wrench_comparing_2.jpg>
>
>

how did they compare?

Clete wrote:
> On Fri, 24 Apr 2009 03:54:15 -0500, Joe
> <joe@spam.hits-spam-buffalo.com> wrote:
>
>> Just wanted to double-check this. I have never tightened the lug nuts
>> on tires using any method other than "as tight as you can get them",
>> using either a wrench or an impact gun. Since I am worried about the
>> potential of warping the rotors, I bought a torque wrench and today I
>> replaced the wheels on my 06 Civic Si.
>>
>> The specs I found said 80 ft/lbs. This is what I did. It really
>> doesn't seem all that tight, though. Is this the right torque, or was
>> I mislead? Last thing I want is a wheel coming off at speed, and I DO
>> like to drive hard... ;-)
>
>
> Lug nuts have no bearing at all on rotors. Torque for lug nuts is for
> 1. Safety
> 2. Alloy rims and safety
Hi,
No bearing on rotor? If you tighten it too mcuh you can warp the rotor
(specially the non cast iron rotor; punched one)

jim beam <retard-finger@bad.example.net> wrote in
news:YfydnaHfG6eY_W_UnZ2dnUVZ_jZi4p2d@speakeasy.ne t:

> Tegger wrote:
>> "tww1491" <twaugh5@cox.net> wrote in
>> news:OurIl.49248$Ji5.41370@newsfe21.iad:
>>
>>> "Tegger" <invalid@invalid.inv> wrote in message
>>> news:Xns9BF7AFE4EB32Dtegger@208.90.168.18...
>>
>>
>>>>
>>>> My dad was a mechanical engineer. I still have his old beam-type
>>>> torque wrench.
>>>>
>>>>
>>> Still have mine.. was using it back in the 60s when I bought it at
>>> Sears.
>>>
>>>
>>
>>
>> Dad's old beam-type is the "DURO" brand, No. 8099� (no I'm not
>> kidding; there really is a one-half symbol in there), made by Duro
>> Metal Products of Chicago. The unit calls itself a "Tension
>> Indicator". Reads up to 100 ft lbs.
>>
>> Here it is:
>> <http://www.tegger.com/hondafaq/misc/torque_wrench_comparing_2.jpg>
>>
>>
>
> how did they compare?
>



It was weird.

The Duro read a max of about 10% off either way from the clicker setting
when the clicker clicked. The clicker's advertised tolerance is 4% up or
down. I figured something had to be wrong with my setup, but I can't figure
out what that might have been. The barrel of the clicker was NOT distorted
at all by the vise. I checked with a mike.



--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/