View Full Version : lidl special offer torque wrench deal
for anyone who needs a new torque wrench............
Lidl stores this thursday 21/2/13
1/2" drive 28-210Nm torque wrench
c/w 5" extension, 17,19 & 21mm sockets
5 year warranty
£15.99
i can't imagine there will be many in each store, i've been cheeky enough in the past to go in on the wednesday @ 7.45 & see if they'll sell me one.
conza123
18-02-13, 07:26 PM
how accurate are they.
ive got super duper snap on electronic tech angle one lol
You get what you pay for...
Bargain for the money.
chrisd1986
18-02-13, 07:54 PM
i got one from them last year and it done the job when i rebuilt my cousins engine, it comes with a e marked calibration ticket inside. i am a bit mad for my snapon stuff somtimes but i would never buy one of there torque wrenches because i dont use it that often
how accurate are they.
ive got super duper snap on electronic tech angle one lol
as a diy one, i'd say it was accurate enough. with a decent angle gauge, it would be fine.
chrisd1986
18-02-13, 08:14 PM
i didnt even use one of those i just guessed it and his bottom end its fine he must of done atleast 10k in it now as it was almost a year ago since i done it
rough so & so.....lol
i can make an angle gauge from a scrap piece of card in a couple of minutes.. if i'm pushed, but i also made a really good one from printing off a pic of a 360 deg protractor & making a pointer, then sticking the lot thru a home laminator
chrisd1986
18-02-13, 08:36 PM
i may do things a bit pikey sometimes but it always works lol
Just torque everything up to 'FT' and youre sorted :thumb:
well, thats what figure the mechanic who did my corsa engine used.... m6 screws snapped off inside ally castings, cambelt idler bolts that needed chiselling off!! ffs
Use your muscles to torque properly lol
I read a white paper about torquing bolts up and the difference between an accurate torque wrench and most humans that have been playing cars for a few years were within a couple of %.. Not bad.
chrisd1986
18-02-13, 08:58 PM
last thing you want to do is use brut force on main bearing and big end bolts lol
Use your muscles to torque properly lol
I read a white paper about torquing bolts up and the difference between an accurate torque wrench and most humans that have been playing cars for a few years were within a couple of %.. Not bad.
If you use the correct tools for it,yeah i can believe that.
I mean,using a breaker bar and an half inch impact socket to tighten sump bolts is never gonna be close,nor is tightening headbolts using a quarter drive ratchet LOL
Of course. But you wouldn't do that..... Well most wouldn't lol
Also my torque wrench was a cheapy special in screwfix for like £16.99 which is all the time, so the lidl offer isn't that fantastic.
well, thats what figure the mechanic who did my corsa engine used.... m6 screws snapped off inside ally castings, cambelt idler bolts that needed chiselling off!! ffs
Those idler bolts are always facking tight because of the thread lock. Its only about two ive ever managed to get undone
Of course. But you wouldn't do that..... Well most wouldn't lol
I have seen worse lol
Once heard of a lad at a garage the other end of the road from the one i used to be at,who wanted to impress his boss during a service,windy gunned 4 spark plugs in lol lol lol
maddogdaz666
18-02-13, 09:20 PM
I've done a head gasket on a 1.4 8v nova sr years ago with a windy gun, it ran fine for years and sold it on with no problems. I've never used an angle guage, but always used a torque wrench since growing up
How long ago did you grow up? lol
last thing you want to do is use brut force on main bearing and big end bolts lol
I guess that would stink... lol
Just torque everything up to 'FT' and youre sorted :thumb:
Flol
meritlover
19-02-13, 02:43 PM
Mowgli, this is a bargain for any enthusiast. Even if you just wanted the sockets.
torquing is an inaccurate method of tensioning a bolt anyway but will be fine for 99% of all projects on here.
good find!
xxx
womble sri
19-02-13, 06:00 PM
Nice ill keep an eye out, I got a set of ratchet spanners last year which I dont use professionally but they do the job for adjusting the blades on my ride on mower.
maddogdaz666
19-02-13, 09:36 PM
How long ago did you grow up? lol
I'm still trying after 30 years lol
torquing is an inaccurate method of tensioning a bolt anyway
Why?
they use torque figures for a reason....
i have to admit that torquing them to 18lbft then using a multiple angle method will probably get a bolt torque to a more consistent point than a straight xyz lbft figure.
Have a look at bolt yield and ultimate strengths,ever wondered what those 2 numbers on ya bolts meant?
something like 80-90% of the 'torque' put into a bolt is actually the friction of the thread/head (http://www.hexagon.de/rs/engineering%20fundamentals.pdf ) page 5
so using a torque figure is a little bit hit and miss as you dont know exactly how much torque is really in the joint and how much is lost as friction. Angle tightening is pretty consistent as its calculated with the thread pitch and bolt material in mind so you do a light torque to xlbft just to pretension the joint then angle it up to get an accurate tension.
Later in that pdf report it states the machine vs human tightening lark and how close most humans can get by feel
you have hit on a whole different subject there stu.
on hgv's, you are meant to oil the threads on wheel bolts, and the nuts have built in washers to clamp the wheel. there has been a massive debate in the hgv trade about wheels falling off. and putting the nuts on dry threads is the biggest reason they fall off, as it cons the torque wrench into clicking. all tyre companies recommend re torquing after 30 miles, cos they always need it.
with oiled threads, the clamping force is way higher & when you check them, they are still tight.
you are meant to properly clean out bolt holes in a block, and lightly oil the threads on the bolt. its surprising how often it doesn't get done.
meritlover
20-02-13, 11:46 AM
you have hit on a whole different subject there stu.
on hgv's, you are meant to oil the threads on wheel bolts, and the nuts have built in washers to clamp the wheel. there has been a massive debate in the hgv trade about wheels falling off. and putting the nuts on dry threads is the biggest reason they fall off, as it cons the torque wrench into clicking. all tyre companies recommend re torquing after 30 miles, cos they always need it.
with oiled threads, the clamping force is way higher & when you check them, they are still tight.
you are meant to properly clean out bolt holes in a block, and lightly oil the threads on the bolt. its surprising how often it doesn't get done.
it doesnt matter whether the bolt is oiled or not, the important thing is that the torque figure that is used takes into consideration the coefficient of friction to give the correct stretch on the bolt...which gives it the tension.
wheel nuts 'always need retorqued' because the taper on the wheel/nut/bolt/head absorbs the friction applied by the torque wrence and therefor it is not applied to the stretching of the bolt....so it appears loose.
the stretch/yield of the bolts is implied by the torque, which relies on several factors.
the best way is by angle gauge as you can calculate the stretch given per degree turned, based on the pitch of the thread. The problem with this is the starting point (hand tight, torqued, loose?)
in industry, hydraulic tensioner units are used to physically stretch the bolt/studs. Then the nut is wound down to the flange finger tight and the tension released from the gear. the problem with this is that the stud has to be over tensioned so that when the stretch is taken up by the nut, the finished tension is on spec.
all industry torque figure charts specify a grease co-efficent. you would be amazed (or maybe not) at how much the torques change between greases.
none of this detracts at all from how good value the Lidls torque wrench is.
meritlover
20-02-13, 11:48 AM
Have a look at bolt yield and ultimate strengths,ever wondered what those 2 numbers on ya bolts meant?
no, that tells you what the spec of the bolt is, it doesnt tell you what you have to apply to get it to that point. which is the whole issue surrounding torquing ;)
Whats wrong with FT. Its never failed me
/\ you obviously haven't got a long enough bar then burgo..
i've seen people shear 22mm thread bolts
I was told by a good engineer that that is exactly the case. say (for debates sakes) 8.8 bolt-would be the first 8 is so many pascals of torque to yield the bolt ie deform,then the second 8 is the point at which it snaps,again measured in megapascals.So to me that does say how much you have to apply to get it to that?? This was all involved in a lesson of stress,strain and youngs modulus of elasticity.
Whats wrong with FT. Its never failed me
Ok,i dare you to put your wheels on with a quarter drive ratchet next time.......
i broke several sockets including an impact one attempting to remove some wheels from an astra van at work, in the end, we took it back to the garage where the tyres had been done & asked them to undo them, then buy us some new bolts & do them up properly with a hand brace
face it folks, torque figures are worked out by people who are paid to work them out so that the engine/component is held together properly. so lets just try to do them up properly.
Torquing with an extension is also frowned upon.
Ok,i dare you to put your wheels on with a quarter drive ratchet next time.......
With a scaffy pipe on the end? lol *Snap! Goes the drive.*
With a scaffy pipe on the end? lol *Snap! Goes the drive.*
Did that for a laugh at a garage i used to work at before on my nova lol
Did that for a laugh at a garage i used to work at before on my nova lol
lol I stripped the camber bolts from the Escorts front ARB in a similar manner.
Hey, the other ratchets were too big, and I don't own six sided spanners.
meritlover
20-02-13, 06:30 PM
I was told by a good engineer that that is exactly the case. say (for debates sakes) 8.8 bolt-would be the first 8 is so many pascals of torque to yield the bolt ie deform,then the second 8 is the point at which it snaps,again measured in megapascals.So to me that does say how much you have to apply to get it to that?? This was all involved in a lesson of stress,strain and youngs modulus of elasticity.
pascals is a pressure, most bolts are in PSIs but i guess thats due to imperial API standards. it does not tell you how much torque you have to apply to achieve its yield or break point.
applied torque from a torque wrench has no direct relation to bolt yield. you could apply 200nm to a 10mm bolt, but if the friction of the head and threads takes 199Nm to overcome, the actual torque applied to tighten it is 1Nm even then, this is an implied method relating to yield, which comes from a theoretical amount of stretch in controlled circumstances (head friction, lubricant coefficient etc).
do you honestly believe that torquing a dry bolt and a lubed bolt to 10Nm will apply the same tension on the bolt?
Ok,i dare you to put your wheels on with a quarter drive ratchet next time.......
Why would I do that? I would use my impact gun to do the wheels
do you honestly believe that torquing a dry bolt and a lubed bolt to 10Nm will apply the same tension on the bolt?
nope, hence the torque modification tables in many engineering books lol
Jon_nova1
20-02-13, 07:23 PM
I think this conversation is getting a little complicated lol
Whoever said ever wondered what the numbers on top of a bolt mean? it's the width/length you can also get them with stamped steel grades.
If you was to do wheelnuts then surely tightening them till it clicks would suffice? just because it takes 10NM to overcome the friction the bolts in the thread are still going to be tightened to 120NM, the clamping force of the wheel against the disc is just 10NM less, it is the due to the presence of this friction that your torque wrench clicks?? it's not exactly sealing anything so there won't be a major issue, of course if the wheel was to not sit right then whoever put it on is incapable of spotting a crossed thread and should stay away from cars lol
If you was to be doing a head gasket then it is quite critical to make sure the threads are clean and you are supposed to tap the hole to take out the crap because uneven clamping forces cause failure, so despite the fact the torque settings are right, the clamping forces are wrong, which the torque wrench don't calculate.
Oh i know someone that used FT on wheel nuts, a metre breaker bar with a snap on...the bolt came out in bits lol
meritlover
20-02-13, 07:53 PM
nope, hence the torque modification tables in many engineering books lol
thats my point.
thats my point.
As you pointed out theres quite a few variables when you put it like that,perhaps it means when the head has no friction? I dunno
Why would I do that? I would use my impact gun to do the wheels
Some impact guns tighten up to 250 even 300,most need to be circa 90/100...............
Mines 450 if I remember correctly lol. Still not going to come undone
Mines 450 if I remember correctly lol. Still not going to come undone
No sh1t! haha lol
Problem with that is,is that garages gun them up and then customer gets a puncture,attempts to change the wheel at the roadside with his oe wheel wrench-Not a prayer,not even hulk hogan could,ive tried using oe wrenches and they just bend,if you have got the strength,which a female customer wont.
jimbob-mcgrew
21-02-13, 01:52 AM
for anyone who needs a new torque wrench............
Lidl stores this thursday 21/2/13
1/2" drive 28-210Nm torque wrench
c/w 5" extension, 17,19 & 21mm sockets
5 year warranty
£15.99
good shout mo :thumb:
i left mine tensioned years ago and killed it. aint had one since, the toolbox could use one i think :)
meritlover
21-02-13, 08:08 AM
i left mine tensioned years ago and killed it.....
that is a very good point, you should never leave them under tension. ALWAYS back it right off once you're finished with it.
No sh1t! haha lol
Problem with that is,is that garages gun them up and then customer gets a puncture,attempts to change the wheel at the roadside with his oe wheel wrench-Not a prayer,not even hulk hogan could,ive tried using oe wrenches and they just bend,if you have got the strength,which a female customer wont.
Well then thats their own fault they should buy an impact gun as well lol
Well then thats their own fault they should buy an impact gun as well lol
lol lol
Got mine
http://i12.photobucket.com/albums/a226/sclurgess/20130221_184150_zpsc43ec2bc.jpg
Pleasantly surprised with it. Very similar to sealey
My lidl has quite a few if anyone struggles to get one
I'll stick with the two I stole from work. lol
Novasport
21-02-13, 07:58 PM
I got one today aswell, god knows how they make them for the money. It will do to torque up wheel bolts. I have my Snap-On ones for engine work etc.
Bought a set of ratchet straps for £9.99 and a fire extinguisher for £7.99 aswell.
I saw th ratchet straps and was tempted but dont see a use for them any time soon so left them. Did get a big roll of anti-slip matt, 2 hdmi cables, a tiny hoover attachment, a dvd and some wellie socks for tan lol
Jeff16v
23-02-13, 02:12 PM
Got mine this morning, bargain.! Cheers Mowgli.
http://i233.photobucket.com/albums/ee77/gsijeff/04F62F1E-D75E-4C24-98E7-423890F63F13-11171-0000031B0E7E05FA_zps0e044c09.jpg
glad to be of service... our local aldi never delivers the flyers on our street, so i always check when i'm on the grocery run
i got some el cheapo ring spanners from lidl about 4 years ago & can't kill them, so went back & bought some combi ones too... crazy cheap for the strength
womble sri
23-02-13, 11:59 PM
Got one :)
Also never undo stuff with one.
/\ i did that once in an argument with a mechanic over windy guns, cos he set the torque wrench to the correct torque & proceeded to click it on obviously overtightened wheel bolts, so i stuck 10lbft on it & made him try to undo them as according to him, they were correct.... i won the argument
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