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General E46 Forum
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Old 04-09-2015, 10:14 PM   #1
redfeathers
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Torque wrenches....Calibration??

When is the last time you had your torque wrench CALIBRATED? Like never I bet.
I'm guilty as well but intend to as soon as possible.
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Old 04-09-2015, 10:25 PM   #2
orb
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The only thing I use a torque wrench for on my car is spark plugs. Everything else by feel. Never had any problems.
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Old 04-10-2015, 08:24 AM   #3
HarleyRob
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Quote:
Originally Posted by redfeathers View Post
When is the last time you had your torque wrench CALIBRATED? Like never I bet.
I'm guilty as well but intend to as soon as possible.
How do you calibrate a torque wrench?
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Old 04-10-2015, 09:05 AM   #4
grimma
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i did my spark plugs with torqu wrench till 20 Nm ant than little bit more bit a tiny bit! my torque wrench was max 20 Nm , very small
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Old 04-10-2015, 09:14 AM   #5
forzam
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Quote:
Originally Posted by HarleyRob View Post
How do you calibrate a torque wrench?
For snap-on electronic torques you can send it to them and they will do it. Not sure of the price.
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Old 04-10-2015, 09:42 AM   #6
BigMaineWomen
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drop it off at your state metrology lab. They will have calibrated weights there and can either adjust the wrench to read correctly or provide corrections at specific torques.



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Last edited by BigMaineWomen; 04-10-2015 at 11:07 AM.
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Old 04-10-2015, 10:47 AM   #7
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You can use this tool from Harbor to test existing wrenches, or attach it to a existing ratchet if you don't own a torque wrench.
http://www.harborfreight.com/12-in-d...ter-68283.html
Here's a review on youtube

Here's more specific info on how to re-calibrate your own wrench

Last edited by DEADF15H; 04-10-2015 at 06:52 PM.
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Old 04-10-2015, 11:20 AM   #8
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I had my old 1/2" torque wrench that I picked up along the way checked at the my local Costco Auto Center because I saw they had a torque tester behind the counter.

I found that my wrench was about 12 ft/lbs low as compared to the setting on the wrench. So I just add crank another 12 ft/lbs on the tool when using it.

I checked how much it would cost to have it "Officially" calibrated and it is not cheap. Probably cheaper to buy a new torque wrench then have it "calibrated".
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Old 04-10-2015, 11:24 AM   #9
mikeetastic
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^^ same here.. thats why i bought the HF digital torque adaptor to verify before torquing and just add +- on the actual wrench..
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Old 04-10-2015, 12:37 PM   #10
BigMaineWomen
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if i was going to calibrate one in my lab and provide a traceable (to the national standards) report with it it would be $40. We are one of the cheaper labs in the country though.
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Old 04-10-2015, 06:57 PM   #11
DEADF15H
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Quote:
Originally Posted by jfoj View Post
I checked how much it would cost to have it "Officially" calibrated and it is not cheap. Probably cheaper to buy a new torque wrench then have it "calibrated".
Now you can recalibrate your own with a $30 HF tool, maybe not "official" but better than what I have now.

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Old 04-10-2015, 08:15 PM   #12
redfeathers
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Yea, I think it could be just as good to buy a new one but it seems like a waste to have two.
I've seen stripped aluminum threads and that's no fun. Also, I was told to store my torque wrenches at ZERO, with no load. Been guilty of forgetting that as well.
Torque at the LOW end may be the safe method.
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2001 bmw 330 ci 200k miles white
(bought used in 2/2013)(history, unknown) use to be unknown....NOW IT STARTS AND RUNS PERFECT...love it. Oh yea....30 mpg...even better.
1997 f150 xlt 4x4 386k miles R.I.P., white
(bought new in 1997)
newly REBUILT - 1k + NEW MILES so far
2003 roadking 61k miles white
(bought used in 2005)
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