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Torque wrench arrived with 40ft*lbs setting #4764936
05/22/18 11:57 AM
05/22/18 11:57 AM
Joined: May 2017
Posts: 944
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 944
TX
My torque wrench arrived today with the torque setting pre-set on it at 40+ ft*lbs. I've checked calibration paperwork and it has been calibrated over 6 months ago. With that said, I believe it won't be as accurate as advertised (+/- 4%) due to lengthy storage with the spring loaded. Correct if I'm wrong here folks, never had torque wrenches before. PS. wrench can be easily returned which is exactly what I was planning to do unless you guys can convince me opposite. Million thanks

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4764944
05/22/18 12:04 PM
05/22/18 12:04 PM
Joined: Mar 2012
Posts: 1,440
San Antonio, TX
E150GT Offline
E150GT  Offline

Joined: Mar 2012
Posts: 1,440
San Antonio, TX
What’s the lowest setting?


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: Torque wrench arrived with 40ft*lbs setting [Re: E150GT] #4764947
05/22/18 12:05 PM
05/22/18 12:05 PM
Joined: May 2017
Posts: 944
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 944
TX
10lbs it is

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4764972
05/22/18 12:30 PM
05/22/18 12:30 PM
Joined: Jun 2002
Posts: 12,815
The Motor City
Kestas Offline
Kestas  Offline

Joined: Jun 2002
Posts: 12,815
The Motor City
In my opinion I don't think 6 months is long enough for metal springs to take a significant set at 40 ft-lbs.

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4764975
05/22/18 12:32 PM
05/22/18 12:32 PM
Joined: Apr 2007
Posts: 784
Connecticut, USA
bmwpowere36m3 Offline
bmwpowere36m3  Offline

Joined: Apr 2007
Posts: 784
Connecticut, USA
What's the scale/range for the torque wrench? We keep our torque wrenches set to 20% full-scale at work (aerospace) and I've done the same at home. Personally anywhere in the 0-20% of full-scale I'd be comfortable with.

Re: Torque wrench arrived with 40ft*lbs setting [Re: bmwpowere36m3] #4764976
05/22/18 12:36 PM
05/22/18 12:36 PM
Joined: May 2017
Posts: 944
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 944
TX
the range is 10-150 and it has been set at 41-42ft*lbs which puts it at around 28%. deal breaker or not?

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4764977
05/22/18 12:40 PM
05/22/18 12:40 PM
Joined: Jan 2017
Posts: 2,368
VW Fanboy Island
maxdustington Offline
maxdustington  Offline

Joined: Jan 2017
Posts: 2,368
VW Fanboy Island
Originally Posted By: parshisa
the range is 10-150 and it has been set at 41-42ft*lbs which puts it at around 28%. deal breaker or not?


If you have nothing to compare it against, you may as well return it.


03 Jetta AWP/09A 205k kms
Edge 0W40 + Mann 719/30
Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765040
05/22/18 01:41 PM
05/22/18 01:41 PM
Joined: Apr 2018
Posts: 715
Somewhere in time
Imp4 Offline
Imp4  Offline

Joined: Apr 2018
Posts: 715
Somewhere in time
Originally Posted By: maxdustington
If you have nothing to compare it against, you may as well return it.

Balderdash!!!
Just do a test.

Attach a socket and clamp the socket in a bench vise.
Then hang the appropriate weight at the end of the handle for your moment arm and wrench setting.
Does it click when it should?!?

You don't even need adjustable weights.
Just turn the wrench til it clicks during the test and calculate if your weight is correct.

This isn't rocket surgery....

Last edited by Imp4; 05/22/18 01:47 PM. Reason: Like 6 different changes

2001 Mitsubishi Galant 2.4 - 160k+
Grandma's creampuff...
Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765167
05/22/18 03:14 PM
05/22/18 03:14 PM
Joined: Apr 2018
Posts: 715
Somewhere in time
Imp4 Offline
Imp4  Offline

Joined: Apr 2018
Posts: 715
Somewhere in time
Where did everybody go?!?
Are you all out calibrating your torque wrenches?!?


2001 Mitsubishi Galant 2.4 - 160k+
Grandma's creampuff...
Re: Torque wrench arrived with 40ft*lbs setting [Re: Imp4] #4765187
05/22/18 03:28 PM
05/22/18 03:28 PM
Joined: May 2017
Posts: 944
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 944
TX
haha, I actually thought about doing this but unfortunately I have nothing of the known weight in the house...bummer

any other ideas?

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765223
05/22/18 04:15 PM
05/22/18 04:15 PM
Joined: Jun 2003
Posts: 33,952
ME
eljefino Offline
eljefino  Offline

Joined: Jun 2003
Posts: 33,952
ME
Originally Posted By: parshisa
haha, I actually thought about doing this but unfortunately I have nothing of the known weight in the house...bummer

any other ideas?


A gallon of water is 8 lbs. Get a few old milk jugs on a string.

If you can find something 40 ish lbs, weigh yourself, then weigh again holding the object and do subtraction.

Buy a dumbbell from walmart and save the receipt.

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765301
05/22/18 05:30 PM
05/22/18 05:30 PM
Joined: May 2017
Posts: 944
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 944
TX
Tested the wrench against the factory torque transmission fill plug (32 ft*lbs) and it clicked out at this setting. There were factory marked and it hasn't moved at all. At least it's not overtorqueing connection, that's good.

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765319
05/22/18 05:45 PM
05/22/18 05:45 PM
Joined: Jun 2003
Posts: 33,952
ME
eljefino Offline
eljefino  Offline

Joined: Jun 2003
Posts: 33,952
ME
That's a somewhat false test as you get breakaway torque trying to start from a standstill. You could match-mark the drain plug, loosen it slightly with a normal wrench, then retorque it with your tq wrench.

Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765347
05/22/18 06:16 PM
05/22/18 06:16 PM
Joined: Aug 2011
Posts: 151
Va.
Piston_slap Offline
Piston_slap  Offline

Joined: Aug 2011
Posts: 151
Va.
We need to over-think this just a bit more. One of you engineering types lookup how much 40ft/lbs will stretch in a 1" long, 1/4" diameter grade 5 bolt. Slip on a spacer, apply the torque and mic' the length. Now he can test his wrench. Now if he ever uses anti-seize, thredlock or lubricant (by accident or design) all bets are off. crazy


1994 Ford Econoline w/302 & 4R70W
Valvoline 10W-40, Motorcraft FL1
Isotope U235
Re: Torque wrench arrived with 40ft*lbs setting [Re: parshisa] #4765370
05/22/18 06:43 PM
05/22/18 06:43 PM
Joined: Jan 2006
Posts: 758
Los Gatos CA
djb Offline
djb  Offline

Joined: Jan 2006
Posts: 758
Los Gatos CA
How bad do you think spring manufacturing is?

Seventy years ago, sure, I wouldn't trust the spring to not change rate. But steel is much better understood, and a spring used within it's proper range is going to retain calibration for your lifetime.


Last edited by djb; 05/22/18 06:43 PM.
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