E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 04-05-2007, 05:58 PM   #1
brambimmer
Registered User
 
Join Date: Jul 2005
Location: Arkansas
Posts: 36
My Ride: 04 BMW 330i ZHP
Exclamation Torque wrench with adapter and extension - how does this affect reading?

I have a 1/2" drive torque wrench with a 5" long 1/2" drive extension then a 1/2" drive to 3/8" drive adapter then a deep socket 3/8" drive 16mm socket (doing a steering wheel swap).

If I need 46 ft. lbs. of torque on the bolt, does all this extra length mean I need to change the setting on the wrench?

Need help ASAP.

Thanks in advance!

-John
brambimmer is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 04-05-2007, 06:00 PM   #2
VALMONT
The De46vil's Army
 
VALMONT's Avatar
 
Join Date: Oct 2002
Location: So Cal
Posts: 24,617
My Ride: 325Ci, Passat
Send a message via AIM to VALMONT Send a message via MSN to VALMONT
it gives you extra leverage, it in no way effects torque readings.
__________________
VALMONT is online now   Reply With Quote
Old 04-05-2007, 06:54 PM   #3
brambimmer
Registered User
 
Join Date: Jul 2005
Location: Arkansas
Posts: 36
My Ride: 04 BMW 330i ZHP
Thank you!
Quote:
Originally Posted by VALMONT View Post
it gives you extra leverage, it in no way effects torque readings.
brambimmer is offline   Reply With Quote
Old 04-06-2007, 01:01 AM   #4
logikgr
Registered User
 
logikgr's Avatar
 
Join Date: Aug 2006
Location: Northern California
Posts: 381
My Ride: 2001 BMW 325i Sedan
Send a message via AIM to logikgr
"...Ratchet extensions do not affect the torque reading, because they do not extend the lever arm. However, they do increase the tendency to "slant" the wrench from the right angle needed for an accurate measurement. Always ensure your torque wrench is parallel to the plane the fastener sits in. *"Crow's feet" and other extensions added between the wrench head and fastener cause the wrench to understate torque, because they add leverage on the end where you are measuring torque. *It does not matter, from a torque measurement standpoint, where you grip the wrench. However, for safe use, grasp it by the handle grip. *Never use a torque wrench that's been stored with the spring set above 10% of capacity. *Always "exercise" a torque wrench through its full range of settings before using it. *Always apply smooth, steady pressure to a torque wrench-do not jerk it. *When a torque wrench breaks away, stop turning with it. Continuing to turn can damage the wrench and cause personal injury. *Do not use a torque wrench for more than an hour without setting it to zero. *Always store a torque wrench with the spring set at zero. *Use a torque wrench as sparingly as possible; that is, don't use it instead of a regular wrench when you don't need to check torque. *Always follow the instructions that come with the torque wrench. *Know the location of a qualified service center to calibrate and lubricate your wrench...."

from

http://ecmweb.com/mag/electric_torqu...ches_critical/
logikgr is offline   Reply With Quote
Old 04-06-2007, 02:07 PM   #5
ca1242
Registered User
 
Join Date: Aug 2003
Location: Burke, VA
Posts: 7,634
My Ride: 2003 330i
Actually, while extensions do not affect the torque by changing the "distance", they do affect the reading due to torsion. How much? I have no idea. I would imagine not much, but I try to avoid them as much as possible, or if I have to, use the shortest extension required or use a thicker one. In your case, I wouldn't worry about it, but keep it in mind for cases where you use a long extension.
__________________
ca1242 is offline   Reply With Quote
Old 04-07-2007, 02:45 AM   #6
logikgr
Registered User
 
logikgr's Avatar
 
Join Date: Aug 2006
Location: Northern California
Posts: 381
My Ride: 2001 BMW 325i Sedan
Send a message via AIM to logikgr
Yes, torsion does affect the readings; but at 46 ft-lbs, I don't think it will be very much. Well unless you have some low-grade cheap extensions. I remember trying to remove a stubborn bolt with a cheap-o extension I bought in a hurry. Man, after I was done, that thing looked like a twisler. Just concentrate on keeping that wrench parallel to the bolt you are torquing, and you should be fine.
logikgr is offline   Reply With Quote
Old 04-07-2007, 06:01 PM   #7
brambimmer
Registered User
 
Join Date: Jul 2005
Location: Arkansas
Posts: 36
My Ride: 04 BMW 330i ZHP
Thanks to everybody!

Regarding the post that said to not use a torque wrench stored above 10% setting and to reset to 0% when storing, I think it was Wikipedia that said to store at 20%. How in the world is a DIYer to know what to do?

I'm storing mine at 0% and hoping for the best!
brambimmer is offline   Reply With Quote
Old 04-08-2007, 01:00 AM   #8
logikgr
Registered User
 
logikgr's Avatar
 
Join Date: Aug 2006
Location: Northern California
Posts: 381
My Ride: 2001 BMW 325i Sedan
Send a message via AIM to logikgr
Always store at 0%. All manufacturer manuals that I've read always say store @ 0%.
logikgr is offline   Reply With Quote
Old 04-09-2007, 07:33 PM   #9
325myAZ
Registered User
 
Join Date: Jan 2005
Location: Arizona
Posts: 716
My Ride: 2001 325i
Here's another interesting read:

http://home.jtan.com/~joe/KIAT/kiat_3.htm
325myAZ is offline   Reply With Quote
Old 04-11-2007, 07:52 AM   #10
ken@bimmertools
Is NOT A Mechanic
 
ken@bimmertools's Avatar
 
Join Date: Oct 2006
Location: NJ
Posts: 3,555
My Ride: E90
Excellent discussion!

I'm going to tack on that explanation to the torque wrench thread I posted the other day - with credit to the poster, of course!

http://forum.e46fanatics.com/showthread.php?t=461701
__________________


Bimmertools is under new ownership! Please welcome Taylor@bimmertools.com.
Click Here to say hi.
ken@bimmertools is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 09:35 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use