Dunno about bike nut bolts or screws but most jappa car fasteners are ferkin tight straight from the factory. To be sure they are mostly robotically tightened to specs?
pauldw,
Dec 15, 10:39pm
Why so tight? Similar or same filter on Suzuki car engine is 3/4 turn or 10ft lb.
whqqsh,
Dec 16, 2:10am
I thought the same but thats what was printed on the side of the filter (& genuine Suzi part from the dealer)
strobo,
Dec 16, 3:42am
If anyone wants to apply a torque wrench those small size bolts , go ahead and make my day lol, threads will need cleaning up,retapped and smeared with oil or anti seizure compound , or new bolts fitted, not good if its 2 different parent metals and the threads have been corroded or previously worked up.Better to lower the torque threashold from the factory or chart setting and equally more important all the bolts on that part are tightened the same.Smaller bolts are less forgiving to a torque wrench, simple basic stuff really!Use a torque wrench where neccessary ,on critical parts ,brake system,wheel nuts , steering etc
pauldw,
Dec 16, 4:52am
Motorcycle filter apparently is 20mm x 1mm thread instead of 3/4 x16 used by cars and outboards.
melonhead1,
Dec 16, 8:18am
I did my wheel nuts up with a torque wrench to the specs in the service manual and then undid them to see what it felt like. The answer was people do wheel nuts up far too tightly.
medcare,
Dec 16, 8:46am
When you hear stories of entire truck wheels that mysteriously come off with sheared studs, it is more likely the wheel nuts were done up way too tight which stressed the stud and the thread, leading to chronic metal fatigue and failure, rather than the wheel "coming loose" because the nuts were not tight enough.
tweake,
Dec 16, 2:55pm
where did you get that from?
failure from over tightening is rare. it takes a lot of force to overstretch a bolt especially as there is typically a safety factor built in.
most common is loose wheels nuts. either from dirt or rust on the threads or they are done up with a worn out rattle gun.
h.e,
Dec 16, 3:21pm
To over tighten a truck wheel is bloody near impossible. they generally are torqued to 450 foot pound, which requires a 4 ft torque wrench and an average sized apprentice (i'm not going to tighten that many nuts that tight) bouncing on the end of the wrench to crack it
lookoutas,
Dec 16, 3:52pm
I know the tyre shops that I've dealt with, have a directive to torque all wheels back on.
We also do. Even though our rattle gun is pretty close to perfectly set, we never give them full tit, and finish them off with a torque. It's virtually in the pipe-line now that we will have to torque a lot of replaced parts in place. So that means a 3/8 & 1/4 drive torquer is required, and they're not bloody cheap!. At the moment it's sort've drop-kicked into the paddock of: "For $60/hour? Get stuffed!" But we do torque the wheels
punkboy,
Dec 17, 5:40pm
most cases wheel nuts not being retorqued after "x'' amount of kays/loads
skiff1,
Dec 18, 8:29pm
when I worked as a tyre fitter, at a Firestone franchise, and a cheap nasty independent, every wheel was replaced with a torque wrench. Charts gave us the factory torque for each car, and we knew the pattern to tighten them. How hard is it to put a wheel back on a car? Trade training?
ally-oop,
Dec 18, 10:39pm
Had a near new ford ranger go into a major name tyre outlet to have a puncture repair done to a front tyre, saw the gorilla rattle gun the hell out of wheel nuts when refitting wheel, had major brake shudder after that.
whqqsh,
Dec 19, 5:04am
all these conversations always tend to concentrate on bigger sizes & wheels whereas a far more common fault is in the smaller sized fastenings which are stripped far more easily. The origin of this thread was reconfirmed at work yesterday when I was undoing 2 M8 bolts holding a chain guide on a machine (not the runner, just a guide) I was at full grunt with my 13mm ring/open ender & neither would budge & ended up linking another spanner onto one of the open end jaws just to get enough leverage. Tired of so called 'tradesmen' being so agricultural
briantamaki-god,
Dec 19, 10:04am
I had a ford van that the passenger side nuts were threaded the other way had a bit of a grr moment watching a young guy at the tyre place rattle gunning the nuts until I went out and told him ffs it undoes the other way
elect70,
Dec 19, 10:30am
Ive actually got an ' snap on ' inch pounds torque wrench part of lot of tools i got at garage sale of deceased engineer many years ago but never used it .
whqqsh,
Dec 20, 4:56am
on early Chryslers the 'L' stamped on the end of the studs was a dead give away
Just rotated the tyres on the Mrs new corolla yesterday. Was very surprised how little effort required to loosen the wheelnuts. Last puncture she had to change ( in other car), she had to call the garage that fitted the tyres to come and undo the nuts. Guy had to use a frikkin great bar to get them off. Yep,, rattle gun! How the hell was someone with a flattie supposed to change that with a teeny little factory supplied wheel brace?
griev,
Dec 20, 5:54am
I hear ya I was coming back from a fishing trip down south, very well rested. I was on the outskirts of Geraldine resting up having a coffee. The call came in 'Where are ya?' 'Just out of Geraldine' 'My bike won't, start, think it's got fouled spark plugs, so I'm going to get new ones' 'Oh really'? Off I go Back in CHCH 'Where are ya'? 'Home' 'We fitted the new spark plugs, still won't go, what do you think is wrong'? 'Hmm, it's either fuel, spark , compression, or a mixture of them all' 'Ah ok' 'Hey umm we have a problem with the bike' 'Oh a new one?' Yep we decided to pull the spark plugs out a put some fuel directly down, but snapped the spark plug off, it must've been tightened too much when we put it in! 'No shit Sherlock , bring the bike home will ya, I will get my tools 'which incl a torque wrench lol
bwg11,
Dec 20, 7:50am
This is known issue with AW11 MR2's.
tweake,
Dec 20, 9:35am
grease the studs. you will find you can undo them. just. the most common reason bolts/nuts stick is because they where put on dry.
interesting is the steelmasters table posted above. correction factor for plain steel as supplied x1.0 degreased x2.0 heavy greased x0.7
joanie04,
Dec 20, 2:34pm
Some idiot (actually someone I know) always over tightened the wheel nuts on my then car. Had a flat tyre one day. Had to get the neighbour with a power bar to undo the nuts. A biggish boy and it took a lot of jumping up and down on the bar to get them loose. Idiot was strongly reprimanded and told in no uncertain terms to never ever use the impact driver again but use a wheel brace and not too swing on the end of it. How the hell was I meant to change the tyre if I was stuck in the middle of nowhere. Yes I can change a tyre. Was not allowed to sit my licence until I could do so.
daves01,
May 25, 3:26am
That's not that hard to achieve on a big torque wrench. I have to do it all the time at work on a piece of equipment that needs to be broken apart all the time. We have to torque up to about 670 ft/lb which again isn't that hard with the torque wrench. Trick is to always be on the side where you can tighten up using your body weight :-)
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