Break Away Torque, HOw to calculate |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Break Away Torque, HOw to calculate |
Brett W |
Mar 26 2006, 11:44 PM
Post
#1
|
Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None |
We all know that the torque needed to loosen a fastener is usually higher than the torque at which the fastner is tightened. Is there a way to calculate this number.
I just got a new 3/8 Impact wrench and was doing some test with it. We torqued a 1in course thread bolt to 250 ft-lbs. Then used this impact to break it loose. It did it with no problems at 175 psi. Couldn't touch it at 90psi. ANy body know how to calculate that torque? |
Joe Ricard |
Mar 27 2006, 06:18 AM
Post
#2
|
CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
Hmm, SO who really gives a rat's ass how much torque it takes to get a bolt off. As long as it comes off. However you guys were tippy toeing around the real important part. Impact wrenches do not do a good job of obtaining exact torque.
Torque wrench for my lugs ONLY. engine assembly is the same. My preference is the deflecting beam. but If I had enough money the click Snap on would be ok. SOmething nobody talks much about is "running Torque" Which is the torque it takes to trun a Nylock or other self locking nut before it reaches the contact surface. |
Lo-Fi Version | Time is now: 7th June 2024 - 02:27 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |