I was getting ready to install a replacement manifold on the old Mercury
and it occurred to me I ought to be pretty sure my torque wrench didn't
strip the aluminum threads. The Snap On dial wrench hasn't been
recalibrated for 30 years and the Craftsman torsion bar wrench is too
clumsy to get to some of the bolts. I was kicking it around and I came
up with using the torsion bar wrench on a bicycle axle nut and then
putting the dial wrench on it to see if the reading matched. It did.
Then, I went ahead and checked the Craftsman clicker wrench of the same
vintage and recalibrating, and it came up with a match also. Then I did
the torquing with the dial wrench and cross checked it with the torsion
bar wrench, with all good readings. So, I'm just going to call them
calibrated.
Andy
Phoenix

wrote:
> I was getting ready to install a replacement manifold on the old Mercury
> and it occurred to me I ought to be pretty sure my torque wrench didn't
> strip the aluminum threads. The Snap On dial wrench hasn't been
> recalibrated for 30 years and the Craftsman torsion bar wrench is too
> clumsy to get to some of the bolts. I was kicking it around and I came
> up with using the torsion bar wrench on a bicycle axle nut and then
> putting the dial wrench on it to see if the reading matched. It did.
> Then, I went ahead and checked the Craftsman clicker wrench of the same
> vintage and recalibrating, and it came up with a match also. Then I did
> the torquing with the dial wrench and cross checked it with the torsion
> bar wrench, with all good readings. So, I'm just going to call them
> calibrated.
> Andy
> Phoenix
>
Dats de way I does it---but as a cross check--& I only have one 3/4"
torque wrench--I welded an old 3/4 socket about eye high to the side of
my gantry truck engine hoist. plug the wrench in horizontal, attach a
5 gallon bucket to the mid point of the handle, & throw in known
weights till the wrench clicks, or dial reads correctly.--don't forget
weight of bucket <G> Jerry

Make it so that you can pull the torsion bar wrench with the snap on--
against each other. They should read the same.

How could the torsion wrench be off if it zeros properly and nothing
in the ponter binds?

Bill Hale Loveland CO


On Jun 25, 12:39*pm, wrote:
> I was getting ready to install a replacement manifold on the old Mercury
> and it occurred to me I ought to be pretty sure my torque wrench didn't
> strip the aluminum threads. *The Snap On dial wrench hasn't been
> recalibrated for 30 years and the Craftsman torsion bar wrench is too
> clumsy to get to some of the bolts. *I was kicking it around and I came
> up with using the torsion bar wrench on a bicycle axle nut and then
> putting the dial wrench on it to see if the reading matched. *It did.
> Then, I went ahead and checked the Craftsman clicker wrench of the same
> vintage and recalibrating, and it came up with a match also. *Then I did
> the torquing with the dial wrench and cross checked it with the torsion
> bar wrench, with all good readings. *So, I'm just going to call them
> calibrated.
> Andy
> Phoenix

> wrote in message
...
>I was getting ready to install a replacement manifold on the old Mercury
> and it occurred to me I ought to be pretty sure my torque wrench didn't
> strip the aluminum threads. The Snap On dial wrench hasn't been
> recalibrated for 30 years and the Craftsman torsion bar wrench is too
> clumsy to get to some of the bolts. I was kicking it around and I came
> up with using the torsion bar wrench on a bicycle axle nut and then
> putting the dial wrench on it to see if the reading matched. It did.
> Then, I went ahead and checked the Craftsman clicker wrench of the same
> vintage and recalibrating, and it came up with a match also. Then I did
> the torquing with the dial wrench and cross checked it with the torsion
> bar wrench, with all good readings. So, I'm just going to call them
> calibrated.
> Andy
> Phoenix
>

You might check around for a lab. A phone call to these guys indicate rates
of $35 to $55.
http://www.teamtorque.com/index.html

> wrote in message
...
>I was getting ready to install a replacement manifold on the old Mercury
> and it occurred to me I ought to be pretty sure my torque wrench didn't
> strip the aluminum threads. The Snap On dial wrench hasn't been
> recalibrated for 30 years and the Craftsman torsion bar wrench is too
> clumsy to get to some of the bolts. I was kicking it around and I came
> up with using the torsion bar wrench on a bicycle axle nut and then
> putting the dial wrench on it to see if the reading matched. It did.
> Then, I went ahead and checked the Craftsman clicker wrench of the same
> vintage and recalibrating, and it came up with a match also. Then I did
> the torquing with the dial wrench and cross checked it with the torsion
> bar wrench, with all good readings. So, I'm just going to call them
> calibrated.
> Andy
> Phoenix

Calibration can be like measuring with a micrometer and cutting with an axe.
Unbrako says that torque wrench accuracy for generating the clamping force
is +/- 25%.
For a 100 in-# set click you could be providing 75 or 125in-# instead. How
close a calibration to "truth" is needed?

Stu

On Jun 29, 10:20*am, "Stu Fields" > wrote:

> Calibration can be like measuring with a micrometer and cutting with an axe.
> Unbrako says that torque wrench accuracy for generating the clamping force
> is +/- 25%.
> Stu

True, clamping force and "torque" are not always a direct
relationship. Thus the use of Torque-n-Turn specs (and other methods
of overcoming thread friction). I've never seen any specs for AN
hardware other than simple torque values. Do Torque-n-Turn specs
exist for AN hardware? Yes, I know that AN hardware isn't "torque to
yield" but the method is still of value for reusable fasteners.
=================
Leon McAtee

Bill wrote:
> Make it so that you can pull the torsion bar wrench with the snap on--
> against each other. They should read the same.
>
> How could the torsion wrench be off if it zeros properly and nothing
> in the ponter binds?
>
> Bill Hale Loveland CO

You are correct for a bending rod type wrench--but some torque wrenches
have a spring loaded(adjustable)hollow handle that allows a piece to pop
out of a Vee notch making an audible click that is also felt in the
handle--(very handy for torquing where you can't see the dial or
pointer. Jerry
>
>
> On Jun 25, 12:39 pm, wrote:
>> I was getting ready to install a replacement manifold on the old Mercury
>> and it occurred to me I ought to be pretty sure my torque wrench didn't
>> strip the aluminum threads. The Snap On dial wrench hasn't been
>> recalibrated for 30 years and the Craftsman torsion bar wrench is too
>> clumsy to get to some of the bolts. I was kicking it around and I came
>> up with using the torsion bar wrench on a bicycle axle nut and then
>> putting the dial wrench on it to see if the reading matched. It did.
>> Then, I went ahead and checked the Craftsman clicker wrench of the same
>> vintage and recalibrating, and it came up with a match also. Then I did
>> the torquing with the dial wrench and cross checked it with the torsion
>> bar wrench, with all good readings. So, I'm just going to call them
>> calibrated.
>> Andy
>> Phoenix
>

Jerry Wass wrote:
> Bill wrote:
>> Make it so that you can pull the torsion bar wrench with the snap on--
>> against each other. They should read the same.
>>
>> How could the torsion wrench be off if it zeros properly and nothing
>> in the ponter binds?
>>
>> Bill Hale Loveland CO
>
> You are correct for a bending rod type wrench--but some torque wrenches
> have a spring loaded(adjustable)hollow handle that allows a piece to pop
> out of a Vee notch making an audible click that is also felt in the
> handle--(very handy for torquing where you can't see the dial or
> pointer. Jerry
>>

In the Air Farce we were supposed to click the break type torque
wrench three times at the lowest setting before using it. This was
supposed to spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for
calibration if dropped or abused.

I wonder if the electronic torque wrenches are worth the money. Has
anyone in RAH tried them?

Dan, U.S. Air Force, retired

"Dan" > wrote in message
...
> Jerry Wass wrote:
>> Bill wrote:
>>> Make it so that you can pull the torsion bar wrench with the snap on--
>>> against each other. They should read the same.
>>>
>>> How could the torsion wrench be off if it zeros properly and nothing
>>> in the ponter binds?
>>>
>>> Bill Hale Loveland CO
>>
>> You are correct for a bending rod type wrench--but some torque wrenches
>> have a spring loaded(adjustable)hollow handle that allows a piece to pop
>> out of a Vee notch making an audible click that is also felt in the
>> handle--(very handy for torquing where you can't see the dial or pointer.
>> Jerry
>>>
>
> In the Air Farce we were supposed to click the break type torque wrench
> three times at the lowest setting before using it. This was supposed to
> spread the lubrication inside.
>
> I like the idea of taking the wrench to a shop to check calibration.
> Having said that, in my first shop in the USAF we calibrated torque
> wrenches so I may be a tad biased. The machine we used was huge and
> probably weighed close to a ton. Torque wrenches in the USAF are
> periodically calibrated, I forget the cycle, and taken in for calibration
> if dropped or abused.
>
> I wonder if the electronic torque wrenches are worth the money. Has
> anyone in RAH tried them?
>
> Dan, U.S. Air Force, retired

I have not tried the electronic variety; but my recollection is that the
click type torque wrenches were supposed to be calibrated annualy--so long
as no incident occured, such as dropping or other abuse.

Peter

<snip>
> In the Air Farce we were supposed to click the break type torque wrench
> three times at the lowest setting before using it. This was supposed to
> spread the lubrication inside.
>
> I like the idea of taking the wrench to a shop to check calibration.
> Having said that, in my first shop in the USAF we calibrated torque
> wrenches so I may be a tad biased. The machine we used was huge and
> probably weighed close to a ton. Torque wrenches in the USAF are
> periodically calibrated, I forget the cycle, and taken in for calibration
> if dropped or abused.
<snip>
> Dan, U.S. Air Force, retired

Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia taught
me that.

Old Chief Lynn

coffelt2 wrote:
> <snip>
>> In the Air Farce we were supposed to click the break type torque
>> wrench three times at the lowest setting before using it. This was
>> supposed to spread the lubrication inside.
>>
>> I like the idea of taking the wrench to a shop to check calibration.
>> Having said that, in my first shop in the USAF we calibrated torque
>> wrenches so I may be a tad biased. The machine we used was huge and
>> probably weighed close to a ton. Torque wrenches in the USAF are
>> periodically calibrated, I forget the cycle, and taken in for
>> calibration if dropped or abused.
> <snip>
>> Dan, U.S. Air Force, retired
>
> Heck, Dan, in the Air Force there was an alternate torque measuring
> system that didn't even require a torque wrench. (PMEL calibrated, of
> course)
> Simply "strip" it and back off one half turn. Farm boys from Georgia taught
> me that.
>
> Old Chief Lynn

We used the "tighten it until it breaks, then back off a half turn"
and the "finger tight, plus a quarter turn" methods. QC wasn't fond of
the response "two clicks of the left elbow" when we were asked what the
proper torque was. Wasn't the -2 T.O. series issued to sit on or to
protect ones knees on a B-4 stand? Not that I ever did that, you
understand, but there was talk.

Dan, U.S. Air Force, retired

"Dan" > wrote in message
...
> coffelt2 wrote:
>> <snip>
>>> In the Air Farce we were supposed to click the break type torque
>>> wrench three times at the lowest setting before using it. This was
>>> supposed to spread the lubrication inside.
>>>
>>> I like the idea of taking the wrench to a shop to check calibration.
>>> Having said that, in my first shop in the USAF we calibrated torque
>>> wrenches so I may be a tad biased. The machine we used was huge and
>>> probably weighed close to a ton. Torque wrenches in the USAF are
>>> periodically calibrated, I forget the cycle, and taken in for
>>> calibration if dropped or abused.
>> <snip>
>>> Dan, U.S. Air Force, retired
>>
>> Heck, Dan, in the Air Force there was an alternate torque measuring
>> system that didn't even require a torque wrench. (PMEL calibrated, of
>> course)
>> Simply "strip" it and back off one half turn. Farm boys from Georgia
>> taught
>> me that.
>>
>> Old Chief Lynn
>
> We used the "tighten it until it breaks, then back off a half turn" and
> the "finger tight, plus a quarter turn" methods. QC wasn't fond of the
> response "two clicks of the left elbow" when we were asked what the proper
> torque was. Wasn't the -2 T.O. series issued to sit on or to protect ones
> knees on a B-4 stand? Not that I ever did that, you understand, but there
> was talk.
>
> Dan, U.S. Air Force, retired

Oh, yeah! Been retired for more than 30 years, and knees still have
the B-4 stand grate imprint. Never realized the -2 was so versatile!

Old Chief Lynn

coffelt2 wrote:
>
> "Dan" > wrote in message
> ...
>> coffelt2 wrote:
>>> <snip>
>>>> In the Air Farce we were supposed to click the break type torque
>>>> wrench three times at the lowest setting before using it. This was
>>>> supposed to spread the lubrication inside.
>>>>
>>>> I like the idea of taking the wrench to a shop to check
>>>> calibration. Having said that, in my first shop in the USAF we
>>>> calibrated torque wrenches so I may be a tad biased. The machine we
>>>> used was huge and probably weighed close to a ton. Torque wrenches
>>>> in the USAF are periodically calibrated, I forget the cycle, and
>>>> taken in for calibration if dropped or abused.
>>> <snip>
>>>> Dan, U.S. Air Force, retired
>>>
>>> Heck, Dan, in the Air Force there was an alternate torque measuring
>>> system that didn't even require a torque wrench. (PMEL calibrated, of
>>> course)
>>> Simply "strip" it and back off one half turn. Farm boys from Georgia
>>> taught
>>> me that.
>>>
>>> Old Chief Lynn
>>
>> We used the "tighten it until it breaks, then back off a half turn"
>> and the "finger tight, plus a quarter turn" methods. QC wasn't fond of
>> the response "two clicks of the left elbow" when we were asked what
>> the proper torque was. Wasn't the -2 T.O. series issued to sit on or
>> to protect ones knees on a B-4 stand? Not that I ever did that, you
>> understand, but there was talk.
>>
>> Dan, U.S. Air Force, retired
>
> Oh, yeah! Been retired for more than 30 years, and knees still have
> the B-4 stand grate imprint. Never realized the -2 was so versatile!
>
> Old Chief Lynn

Checklists were also great on grates. Pity they weren't good for
protection from joining the KC-135 waffle head club, I joined in 1975.

Dan, U.S. Air Force, retired

"coffelt2" > wrote in message
...
> <snip>
>> In the Air Farce we were supposed to click the break type torque wrench
>> three times at the lowest setting before using it. This was supposed to
>> spread the lubrication inside.
>>
>> I like the idea of taking the wrench to a shop to check calibration.
>> Having said that, in my first shop in the USAF we calibrated torque
>> wrenches so I may be a tad biased. The machine we used was huge and
>> probably weighed close to a ton. Torque wrenches in the USAF are
>> periodically calibrated, I forget the cycle, and taken in for calibration
>> if dropped or abused.
> <snip>
>> Dan, U.S. Air Force, retired
>
> Heck, Dan, in the Air Force there was an alternate torque measuring
> system that didn't even require a torque wrench. (PMEL calibrated, of
> course)
> Simply "strip" it and back off one half turn. Farm boys from Georgia
> taught
> me that.
>
> Old Chief Lynn

Hey don't forget the proper torque on the propellor retaining nut on the
4360 was "All you can with both hands on the Cheater Bar, then a 1/4 turn
more". Note proper Cheater Bar was 6' long.

Stu Fields B-36 engine change crew.

On Jun 29, 9:53*pm, "coffelt2" > wrote:
> <snip>
>
> > * In the Air Farce we were supposed to click the break type torque wrench
> > three times at the lowest setting before using it. This was supposed to
> > spread the lubrication inside.
>
> > * I like the idea of taking the wrench to a shop to check calibration..
> > Having said that, in my first shop in the USAF we calibrated torque
> > wrenches so I may be a tad biased. The machine we used was huge and
> > probably weighed close to a ton. Torque wrenches in the USAF are
> > periodically calibrated, I forget the cycle, and taken in for calibration
> > if dropped or abused.
> <snip>
> > Dan, U.S. Air Force, retired
>
> * * *Heck, Dan, in the Air Force there was an alternate torque measuring
> system that didn't even require a torque wrench. (PMEL calibrated, of
> course)
> Simply "strip" it and back off one half turn. Farm boys from Georgia taught
> me that.
>
> Old Chief Lynn

Yeah, but ya gotta know the difference between metric and SAE torque.

SAE = 1 3/4 grunts
Metric = Gutentieght

bildan wrote:
> On Jun 29, 9:53 pm, "coffelt2" > wrote:
>> <snip>
>>
>>> In the Air Farce we were supposed to click the break type torque wrench
>>> three times at the lowest setting before using it. This was supposed to
>>> spread the lubrication inside.
>>> I like the idea of taking the wrench to a shop to check calibration.
>>> Having said that, in my first shop in the USAF we calibrated torque
>>> wrenches so I may be a tad biased. The machine we used was huge and
>>> probably weighed close to a ton. Torque wrenches in the USAF are
>>> periodically calibrated, I forget the cycle, and taken in for calibration
>>> if dropped or abused.
>> <snip>
>>> Dan, U.S. Air Force, retired
>> Heck, Dan, in the Air Force there was an alternate torque measuring
>> system that didn't even require a torque wrench. (PMEL calibrated, of
>> course)
>> Simply "strip" it and back off one half turn. Farm boys from Georgia taught
>> me that.
>>
>> Old Chief Lynn
>
> Yeah, but ya gotta know the difference between metric and SAE torque.
>
> SAE = 1 3/4 grunts
> Metric = Gutentieght


Good'n'tight is GI German for good day. Peter strain or I'll be the
same are GI German for goodbye.

Not that I would know anything about that stuff there.

Dan, U.S. Air Force, retired

"Dan" > wrote in message
...
> bildan wrote:
>> On Jun 29, 9:53 pm, "coffelt2" > wrote:
>>> <snip>
>>>
>>>> In the Air Farce we were supposed to click the break type torque
>>>> wrench
>>>> three times at the lowest setting before using it. This was supposed to
>>>> spread the lubrication inside.
>>>> I like the idea of taking the wrench to a shop to check calibration.
>>>> Having said that, in my first shop in the USAF we calibrated torque
>>>> wrenches so I may be a tad biased. The machine we used was huge and
>>>> probably weighed close to a ton. Torque wrenches in the USAF are
>>>> periodically calibrated, I forget the cycle, and taken in for
>>>> calibration
>>>> if dropped or abused.
>>> <snip>
>>>> Dan, U.S. Air Force, retired
>>> Heck, Dan, in the Air Force there was an alternate torque measuring
>>> system that didn't even require a torque wrench. (PMEL calibrated, of
>>> course)
>>> Simply "strip" it and back off one half turn. Farm boys from Georgia
>>> taught
>>> me that.
>>>
>>> Old Chief Lynn
>>
>> Yeah, but ya gotta know the difference between metric and SAE torque.
>>
>> SAE = 1 3/4 grunts
>> Metric = Gutentieght
>
>
> Good'n'tight is GI German for good day. Peter strain or I'll be the same
> are GI German for goodbye.
>
> Not that I would know anything about that stuff there.
>

I beg to differ. Good'n'tight is German for virgin.

Tim wrote:
> "Dan" > wrote in message
> ...
>> bildan wrote:
>>> On Jun 29, 9:53 pm, "coffelt2" > wrote:
>>>> <snip>
>>>>
>>>>> In the Air Farce we were supposed to click the break type torque
>>>>> wrench
>>>>> three times at the lowest setting before using it. This was supposed to
>>>>> spread the lubrication inside.
>>>>> I like the idea of taking the wrench to a shop to check calibration.
>>>>> Having said that, in my first shop in the USAF we calibrated torque
>>>>> wrenches so I may be a tad biased. The machine we used was huge and
>>>>> probably weighed close to a ton. Torque wrenches in the USAF are
>>>>> periodically calibrated, I forget the cycle, and taken in for
>>>>> calibration
>>>>> if dropped or abused.
>>>> <snip>
>>>>> Dan, U.S. Air Force, retired
>>>> Heck, Dan, in the Air Force there was an alternate torque measuring
>>>> system that didn't even require a torque wrench. (PMEL calibrated, of
>>>> course)
>>>> Simply "strip" it and back off one half turn. Farm boys from Georgia
>>>> taught
>>>> me that.
>>>>
>>>> Old Chief Lynn
>>> Yeah, but ya gotta know the difference between metric and SAE torque.
>>>
>>> SAE = 1 3/4 grunts
>>> Metric = Gutentieght
>>
>> Good'n'tight is GI German for good day. Peter strain or I'll be the same
>> are GI German for goodbye.
>>
>> Not that I would know anything about that stuff there.
>>
>
> I beg to differ. Good'n'tight is German for virgin.
>
>Was Gesundheit if you jerked the wrench if you sneezed suddenly??

Jerry Wass wrote:
> Tim wrote:
>> "Dan" > wrote in message
>> ...
>>> bildan wrote:
>>>> On Jun 29, 9:53 pm, "coffelt2" > wrote:
>>>>> <snip>
>>>>>
>>>>>> In the Air Farce we were supposed to click the break type torque
>>>>>> wrench
>>>>>> three times at the lowest setting before using it. This was
>>>>>> supposed to
>>>>>> spread the lubrication inside.
>>>>>> I like the idea of taking the wrench to a shop to check
>>>>>> calibration.
>>>>>> Having said that, in my first shop in the USAF we calibrated torque
>>>>>> wrenches so I may be a tad biased. The machine we used was huge and
>>>>>> probably weighed close to a ton. Torque wrenches in the USAF are
>>>>>> periodically calibrated, I forget the cycle, and taken in for
>>>>>> calibration
>>>>>> if dropped or abused.
>>>>> <snip>
>>>>>> Dan, U.S. Air Force, retired
>>>>> Heck, Dan, in the Air Force there was an alternate torque
>>>>> measuring
>>>>> system that didn't even require a torque wrench. (PMEL calibrated, of
>>>>> course)
>>>>> Simply "strip" it and back off one half turn. Farm boys from
>>>>> Georgia taught
>>>>> me that.
>>>>>
>>>>> Old Chief Lynn
>>>> Yeah, but ya gotta know the difference between metric and SAE torque.
>>>>
>>>> SAE = 1 3/4 grunts
>>>> Metric = Gutentieght
>>>
>>> Good'n'tight is GI German for good day. Peter strain or I'll be the
>>> same are GI German for goodbye.
>>>
>>> Not that I would know anything about that stuff there.
>>>
>>
>> I beg to differ. Good'n'tight is German for virgin.
>> Was Gesundheit if you jerked the wrench if you sneezed suddenly??

A cummerbund is a German orgy.

Dan, U.S. Air Force, retired