tech tip

[racer]

I have always had trouble finding a wrench big enough to tighten my axle nuts, but after working at the dealer for 7 months now ive figured out how they do it. With a socket, a home modified socket is all. Keep in mind that your left hub has to be off to do this, but its probably off anyways if your needing to tighten these things. You simply buy the properly sized socket, 50mm i believe, and then cut it in half at the base of the hex. Then look around until you find about 18 inches of 2 inch tubing. Coincidently 50mm is just under 2 inches so this tube works perfect. The final step is to weld the new tube section into the middle, where the socket has been cut. This way you can either use a torque wrench for the proper tightening, or an impact if youre in a hurry.

 

Once i view the service manual at work I'll verify the nut's size, as well as the torque values. Also, measure your axle for the amount of tubing needed, if youre running a wider axle my measurements will be no good. Good Luck.

[PUSH THE THROTTLE]

Great info.

[elimn8u]

I have always had trouble finding a wrench big enough to tighten my axle nuts, but after working at the dealer for 7 months now ive figured out how they do it.  With a socket, a home modified socket is all.  Keep in mind that your left hub has to be off to do this, but its probably off anyways if your needing to tighten these things.  You simply buy the properly sized socket, 50mm i believe, and then cut it in half at the base of the hex.  Then look around until you find about 18 inches of 2 inch tubing.  Coincidently 50mm is just under 2 inches so this tube works perfect.  The final step is to weld the new tube section into the middle, where the socket has been cut.  This way you can either use a torque wrench for the proper tightening, or an impact if youre in a hurry.

 

Once i view the service manual at work I'll verify the nut's size, as well as the torque values.  Also, measure your axle for the amount of tubing needed, if youre running a wider axle my measurements will be no good.  Good Luck.   

343163[/snapback]

 

The nut is 50mm. I made two "crowfeet wrenches" to tighten mine. This socket method won't work for the final step in the factory procedure. You need to be able to torque the inside nut while holding the outside nut.

[racer]

The nut is 50mm. I made two "crowfeet wrenches" to tighten mine. This socket method won't work for the final step in the factory procedure. You need to be able to torque the inside nut while holding the outside nut.

343486[/snapback]

it wont if you do it "correctly" but it works good enough for me, so i thought id share.

[elimn8u]

it wont if you do it "correctly"  but it works good enough for me, so i thought id share.

343621[/snapback]

 

In order to ensure the longest life for the bearings they need to be properly preloaded. Simply just tightening the nuts is not good enough for me.

 

Step 1 - tighten inside nut to 40ft/lbs

Step 2 - tighten outside nut to 140ft/lbs while holding the inside nut

Step 3 - tighten BACK the inside nut to 170ft/lbs while holding the outside nut

[PUSH THE THROTTLE]

Simply just tightening the nuts is not good enough for me.

344088[/snapback]

[racer]

In order to ensure the longest life for the bearings they need to be properly preloaded.

 

from what i have been told by the techs, you dont really have a torque spec for the beraings. this is because of that spacer thing (the name eludes me) that will keep the bearings from overtightening. so unless you REALLY crush on that sleeve it doesntmatter how tight you get it. the reason for the high torque numbers is too make sure the nuts stay tight. anyone i know who has a locking axle nut does not have to get theirs nearly as tight as i have to get mine for the same results, only because they are not relying on the minute stretch of the axle to hold the nuts in place.

[elimn8u]

I am a tech and these specs came from the Yamaha service manual. The spacer is there but there is room to allow preload for the bearings. To much preload from overtighting the bearings and you burn the up prematurly. To little preload and you ruin the bearings. You decide, I know how I set my preload.

[KoooPSD]

All i ever do is just tightin shit......the hell with the specs, just a waste of time.

[RNBRAD]

All i ever do is just tightin shit......the hell with the specs, just a waste of time.

344911[/snapback]

 

Maybe your first statement is the result of the second.

[locogato11283]

i used to use a pipe wrench to tighten mine. i would tighten the first one down tight, then the second one down tight, then tighten the two against each other. they never came apart like that and i never fucked with any torque specs. now i have a dlnoss lock nut and dont have any problems with it..

[J.J.]

The nut is 50mm. I made two "crowfeet wrenches" to tighten mine.

 

To each their own...

 

Don't forget to compensate the torque setting on your torque wrench to factor in the additional leverage given by the crowsfeet.

[.]

they make a tool that is a crows foot sort of deal that comes with the right torque specs to account for the leverage.

 

I havent bought it yet, but I tighten it till its just a little to tight, tighten the outer one against it, and then loosen the inner one into the outer one ......and throw electrical tape around it so they dont go anywhere. Works like a charm, and I've only got a few hours on my 2nd set of bearings and its a 2001. Old ones werent even really beat.....just had the tiniest play so I replaced them.

 

I used to have a 200x and the carrier is a part of the swingarm.....its not fun grinding races out of them .......

[Banshee~]

We have a big ass wrench that will fit those, so I just crank the shit out off them....they came lose from the dealer.

[knight_ripper]

Im with Loco. I use a pipe wrench and tighten the shit outta them. I have even used a hammer on some old ones. But one thing is to be said. I am currently on my third axle....and only one set of nuts has given me a problem. They would come loose on every ride...to the point where I would tighten them in between rides. Then I bent the shit outta that axle and got another one. It came with some nuts...and they havent some loost since. In fact, Noss sent me a locking nut for free when I got my cool head....and I havent put it on...cuz the new nuts are working great. I will replace it when i do my bearings again....or bend another axle.