Omega Owners Forum
Chat Area => General Car Chat => Topic started by: chrisgixer on 04 August 2014, 00:30:02
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God or bad? ::)
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Hurrumph ::)
A scaffold pole is considerably more effective...
Why you ask :-\
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Bloke said, darn the pub! Must be true if bloke said. Right?
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Sorry, bloke said a t wrench should NOT be used to undo. ::)
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Sorry, bloke said a t wrench should NOT be used to undo. ::)
Then why are they reversible
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Sorry, bloke said a t wrench should NOT be used to undo. ::)
Then why are they reversible
Torquing up left hand threaded wheel nuts etc I guess ???
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Sorry, bloke said a t wrench should NOT be used to undo. ::)
Then why are they reversible
Torquing up left hand threaded wheel nuts etc I guess ???
Some are, some aren't. But those that are, so most of them, are for left handed threads. But...
... I think the concern with undoing is over torquing, in reverse. Which is said to allow the wrench to go put of calibration.
Not had one apart, but I would of thought an amount of over torquing would need to be allowed for. If you accept the theory...?
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Morgen,
I was always told NOT to break stuff loose with a torque wrench as it can put it out of calibration.
However, as you get older and you're more experienced you do tend to question things.... this being one of them.
I still don't know the answer but I have to say I will never break stuff loose with twrench. Although I do question whether in reality it would affect it. My twrenches are both hellfrauds (got to say that apart from the horrid plastic tube they come in theyre wonderful). but a ratchet mechanism which mine has will turn one way and not the other so surely if its not ok to do it the only reason is cos its broken the ratchet part? how would the calibration be affected?
Would love to find out. Perhaps an e-mail to Strap-on or even a t wrench calibration outlet is in order? :)
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Not sure why you would want to when a bar is more suited. :-\
If you set the torque wrench to maximum and it undoes the nut/bolt without clicking then there is no issue but, if maximum setting is not enough then you are taking it beyond its means surely. I daren't ask our calibration guys at work as I may get some funny looks, as if to say why would you. ::)
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The natural answer there then is, why wouldn't you...?
As that's the actual question at hand. ;)
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My 'Two-Penneth'.........
A 'Torque Wrench' (Reversible or not) is designed to set a 'Fixing' to a 'Specified Torque' (Left or Right hand thread).....
A 'Breaker Bar' is designed to break a fixing.....
I don't know if any damage would be done to a 'Torque Wrench' when using it to 'Break' a fixing......
What I do know is that the two items were designed with specific jobs in mind.....
I use my 'Torque Wrenches' a lot, especially on my road and race bikes and I would not like to see anyone using them for anything other than what they are designed for......
So there....... ;D :D ;) :P :y
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Right, so nobody knows then, and fuddles that fact with another question.
The main reason for asking is one of pure laziness of course. If the impact wrench won't undo the wheel nut then I can undo it with t wrench instead, rather than walk back to the garage and get a breaker bar or something else just to undo it.
But it seems to me its nothing to do with undoing a fixing, and everything to do with over torquing.
So a better question might be, why would a t wrench go out if calibration if over torqued, that being, to continue turning once the wrench has clicked out...?
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You have to ask yourself what's different between a torque wrench and a breaker bar. The answer, of course, is that the former has a knee at the head, normally held in place by a ball and detent which is preloaded by a sprung mechanism in the handle when you select the required torque.
This mechanism is all critical to the calibration of the wrench, and if you distort any part of it, the wrench is scrap, as its accuracy will be compromised. It's all going to be much more fragile than the head of a breaker bar, clearly.
The manufacturer will have designed the head to be strong enough to cope with the wrench's maximum torque, smoothly applied, plus a bit of margin. If you use the wrench beyond the maximum torque rating, either loosening or tightening, you have no way of knowing how much torque you are applying and whether it's beyond a level which will distort the components around the head.
You want the wrench to be accurate, as the safety of your car ultimately depends on it, you can't guarantee this if you use the wrench beyond its' rated torque, so it's wise not to do it.
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Just found this covering 'Use, Care & Maintenance' of your beloved 'Torque Wrench'
http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/ (http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/)
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Just found this covering 'Use, Care & Maintenance' of your beloved 'Torque Wrench'
http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/ (http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/)
Thanks Kevin. Now I want one of those SnapOn digital torque wrenches with the built in angle gauge. :P ;D
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Just found this covering 'Use, Care & Maintenance' of your beloved 'Torque Wrench'
http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/ (http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/)
Thanks Kevin. Now I want one of those SnapOn digital torque wrenches with the built in angle gauge. :P ;D
Yes I'm always wary of commercially backed articles, but, that does back up what's been said here. In that its not undoing as such, but the risk of over torquing that's the problem.
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Just found this covering 'Use, Care & Maintenance' of your beloved 'Torque Wrench'
http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/ (http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/)
Thanks Kevin. Now I want one of those SnapOn digital torque wrenches with the built in angle gauge. :P ;D
Ahh.. the one he's using to build his V8.. for a kit car, perhaps.. Maybe snake related... <cough!> doesn't time fly? ::)
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Sir, sir, he's picking on me! :'( :'( :'( :-[
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Sir, sir, he's picking on me! :'( :'( :'( :-[
Sorry... ;)
Now, stop looking at tool p0rn and get on with it.
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I almost succeeded in digging it out from under everything the other week ..
.. then we parked the RX8 next to it :-[
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I almost succeeded in digging it out from under everything the other week ..
.. then we parked the RX8 next to it :-[
Oh, yes.. Another project! (https://dl.dropboxusercontent.com/u/26795734/Smilies/doh.gif)
;)
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Just found this covering 'Use, Care & Maintenance' of your beloved 'Torque Wrench'
http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/ (http://www.circletrack.com/techarticles/ctrp_1111_torque_wrench_myths/)
Thanks for the link to an interesting article. :y :y :y