(30-07-15, 11:51 AM)J_Dub link Wrote: 100 Nm is correct, (boxeye is 60Nm) for the sprocket. Buy a torque wrench you need one to tighten the spindle too!
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Just had to add, I am a by the book kind of person, I read all the posts stating not to follow the manufacturers specs and I have successfully stripped the threads of one of my studs by torquing to 100NM/72lbft as stated in the manuals. It was a last minute sprocket change due to a manufacturers fault just before my planned trip which I have had to delay a few days. From now on I am going to use 38lbft! Wish someone bet me a beer, I need one! [/size] [/size]Found this on another forum, I think I would air on the side of caution, you may get away with it on nut bolts&Nuts, do not forget when you tighten and slacken then tighten again nuts & bolts some of the elsatisity is lost in the materails.
MT-09 Tracer for those who no longer can handle a BIG boy Fazer
(30-07-15, 11:47 AM)Grahamm link Wrote: [quote author=chaz link=topic=17798.msg205502#msg205502 date=1438249818]
Are you sure it's 100 nms seems a lot, you do mean the bolts that hold the sprocket to the hub?
I'm going to use Threadlock as well anyway.
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Personally I wouldn't bother - get them torqued up properly and you shouldn't need it (pretty sure they're meant to be dry threads on those nuts according to the Yam manual?)
well I better get me nuts tightened?
How can you torque them up dry and have thread lock on? I've never used thread lock as a lube but it must have some effect on it.
As someone else mentioned are they not nylock nuts anyway??
For me the only bolts , nuts , studs I would likely use a torque wrench on would be , bottom ends, main bearings and cylinder head nuts, coming from an engineering background I would think I am reasonably confident to not over torque or under torque fastenings.
MT-09 Tracer for those who no longer can handle a BIG boy Fazer
If you have torque wrenches it makes sense to use them.
Can't remember what the torque for my rear axle nut is, but considering I like to be able to get it back off I tend to torque it a good wee bit short.
I'm not keen on cheap torque wrenches.
Somebody mentioned Norbar. I recently bought a Norbar, very nice, comes with a calibration certificate. Not cheap but will last the home mechanic a life time. Also got a Britool which is nice too.
Did buy a cheap (ish) Williams wrench a while back. Used it a couple of times but I'd no confidence in it. Replaced with the Norbar.
(30-07-15, 07:47 PM)VNA link Wrote: If you have torque wrenches it makes sense to use them.
Can't remember what the torque for my rear axle nut is, but considering I like to be able to get it back off I tend to torque it a good wee bit short.
I'm not keen on cheap torque wrenches.
Somebody mentioned Norbar. I recently bought a Norbar, very nice, comes with a calibration certificate. Not cheap but will last the home mechanic a life time. Also got a Britool which is nice too.
Did buy a cheap (ish) Williams wrench a while back. Used it a couple of times but I'd no confidence in it. Replaced with the Norbar.
A torque wrench is only as good as the last time it was calibrated which should be Annually.
MT-09 Tracer for those who no longer can handle a BIG boy Fazer
(30-07-15, 10:44 PM)lew600fazer link Wrote: [quote author=fazerscotty link=topic=17798.msg205568#msg205568 date=1438286363]
And as for "Bear" - any takers? :lol :lol :lol
Couple of whores the pair of them lol. Look as if they have been out on the tiles lol
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No this is what happens when they hit the water bowl............
Quote:A torque wrench is only as good as the last time it was calibrated which should be Annually.
All depends on what you are doing.
I doubt I'll ever calibrate mine. It's not gonna get that much use. It will be religiously wound back to zero when it is not in use. In short buy a good one, treat it with respect, look after it and it'll last you a life time.
On the other hand at my work annual calibrations are not acceptable. We don't use wrenches with scale markings, only a range mark. Each wrench is set before and after use on a torque wrench analyser. It's the torque wrench analysers that get calibrated every year.
You're right that torque wrenches should be calibrated regularly, but more importantly they should be checked each time they are set.
I work in the aviation industry and when using a torque wrench we are required to check the set torque on a calibrated gauge before use, and whenever it is adjusted to a new setting.
I know this is a little over the top for a home mechanic but it is the only way of ensuring the correct torque is applied.
Most people don't know how to use a torque wrench correctly anyway, that's if they use one at all :rolleyes
