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daleyd
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I’m sure mine is, I’ll grab a pic of the leaflet that came with it shortly
This is not hard. You get your air gun and ugga dugga the wheel bolts up real tight, then with the torque wrench set to the recommended torque (or some random figure you think might be close), and check the torque wrench clicks, twice quickly in succession for each wheel bolt. Guaranteed never to fall off, that's how the professionals do it...
Being slightly serious, ever tried convincing someone NOT to click twice? Look at you as though you've just admittedly to taking their significant other behind the bike sheds.
We have a pretty critical set of fasteners on one of our half-million quid machines - happened to be wandering past one in build when an "experienced" fitter was torquing them up . . . "click" . . . and another 1/3-1/2 of a turn, I assume for luck . . .
Cue Mr. Unpopular suggesting such a technique might be a reason for a spate of failures we were having around the world.
(Also didn't help fitters using the grade 8.8 hex head fastners from the bulk rack and not the grade 10.9 supplied for the job . . . but still torquing as though they were 10.9 . . .)
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We had a local tyre place that did that, they have a viewing window where I could see what was happening and remarked to the chap behind the counter I wasn't very happy with the approach, give him his due he went out and made the fitte loosen all the nuts off and torque them up properly, I never went back.
daleyd
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I snapped a lug off a thyristor on an offshore job a few years back. The bloke whose job it was (he’d done all the design work and specced everything) handed me the torque wrench as he’d used it for the same bolts on another unit just before me, I asked him “all set?”. “Yep”.We used to have a fitter that would always add a bit more after the click
As it snapped I looked at him and he looked back at me and said “well 30Nm (can’t remember the exact figure but it was the one in the manual) seemed too low so I set it at 60 - we ended up getting a new one taken off a unit in the factory on a Friday afternoon and helicoptered offshore on Saturday
dobbslc
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I have the 1/4" Teng one and I'm very happy with it.I have several Teng torque wrenches and can't fault them in the slightest. I'd certainly recommend themI didn't get them from Halfords though, as at the time they were cheaper elsewhere (even with a Halfords trade card).
It looks a bit more trick than the Halfords/Norbar ones but the Norbar ones might be made in the UK.
I'm surprised they don't advertise that on their website but maybe they are keeping quiet if it's not from the UK
daleyd
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International Locations
At Norbar we understand this need and apply our expertise to our product maintenance, testing and support services throughout our network of state branches; and because we specialise in both the sale and appropriate maintenance of torque tools, you can be fully confident that we are able to...
www.norbar.com
MetalMonkey
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Unless you are working at very critical torque values, it shouldn't make much practical difference.
Each additional click is going to impart a very small amount of additional bolt tension, likely well within the margin of error of the initial setting.
If tightening down a bolt pattern, there will possibly be some settlement in everything so going over it again is probably prudent anyway.
If torqueing against something compressible (i.e. gasket), then the joint will relax, and retorquing will result in some further movement as the bolt tension has been released.
Unless the fasteners are in optimal condition, there will usually be some extra stiction so you are probably going to be hitting under the torque value on the first click anyway.
Not something i'd loose sleep over, the bit that drives me mad is when people yank on the torque wrench like they are trying to break off wheelnuts.
They might as well not have bothered using one in the first place!
Yes that is the idea of them, they are supposed to be used with a breaker bar - I found mine doesn't like the "shock" of a torque wrench clicking at high tension.
But it is a mighty convenient way to check your torque wrenches for consistency against each other.
dobbslc
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I went for the 60-300 Nm version but having got it out the box for a quick look I think I've made a mistake, I probably should have got the slightly smaller one with the 40-200 Nm range.
Most of the settings I'll probably use are right near the bottom of the scale on this one. It's a fair hefty piece of kit though.
I'll see if I can swap it.
Most of the settings I'll probably use are right near the bottom of the scale on this one. It's a fair hefty piece of kit though.
I'll see if I can swap it.
That
It'd be interesting to use one of those to test just what my cheapo 18v 1/2" Impact Gun would really undo! (E.g. Tighten a bolt up a setting using the torque tester, & see if the battery Ugga Dugga can shift it).
I'm tempted to get one of those. I have a very small 1/4" 1nm to 24nm one that I got for my old Carbon-Fibre Mountain Bike, and one cheapie larger one. I know there's a gap between the highest & lowest setting of each.
ENGC Digital Torque Meter High Accuracy Wrench Torque Tester with Alarm L4C6 | eBay
VERSATILE Torque Units: Instantly switch between four popular torque units (kgf.cm, Nm, lbf.ft, and lbf.in) for maximum compatibility and flexibility in various tasks. 1 Torque Gauge. AUTOMATIC SHUTDOWN: Automatic shutdown without operation for 2 minutes to avoid excessive power consumption.www.ebay.co.uk
It'd be interesting to use one of those to test just what my cheapo 18v 1/2" Impact Gun would really undo! (E.g. Tighten a bolt up a setting using the torque tester, & see if the battery Ugga Dugga can shift it).
I was watching an Allen Millyard vid of him building a bike engine the other day. 2 things struck me - the first was that he wasn't that fussy with cleanliness, second was that he had the torque wrench with the little red ball on the end, you pull it out, adjust setting and poke it back in (same as mine, forget the make now). Anyway these wrenches have the mechanism along the side, and I noticed he would turn the wrench, just until the mechanism came out, but invariably not enough to "click"..
Anyone know why he would do this?
Anyone know why he would do this?
I always go round in a circle after tightening opposite wheel bolts/nuts to make sure I don't miss any, more important with more than 4. They don't move enough to feel it, is it an over tightening issue? Or just pointless?
The worst I have seen was someone using the inertia of the wheel with the car up on a lift to rapidly click the torque wrench 3 or 4 times
