8 replies to this topic

[Frazer stuart]

Hi guys and gals,

I'm fitting new discs and pads to my 93 spi. When refitting the hub nut do I need to torque down with a flat washer before redoing it with the conical one? I've seen that talked about elsewhere but I'm not sure if it's needed when just doing discs as I've not really disturbed the bearing assembly??

Second question - my torque wrench doesn't go up to 270nm so will it be okay if I torque it to the 210 that my wrench can do, then a little more, fit the split pin, and drive to the nearest garage (8 miles) slowly for them to torque it properly? Or will that destroy my bearings? Sorry if this question is stupid/dangerous but it doesn't hurt to ask!

Cheers, Fraz

[nicklouse]

1 no need.

 

2 I would buy another torque wrench.

[Frazer stuart]

1. Awesome, thats what I wanted to hear. cheers

2. I know I know. Just wondering if I can get away with it this time

[cal844]

You don't need to use the flat washer

Buy or borrow another torque wrench.

[Spider]

In saying that you don't need to do the 'Flat Washer' part of the process, I do agree with that, however, make sure the tapered washer has a good gap on it and hasn't closed up. If you look at the CV, just where the thread on it ends, there's a small plain section, a little bigger in dia than the Thread, the tapered washer must be able to fit over that.

 

If you can only tighten the nut to 150 ft/lb (210 Nm) to get to somewhere to have it tighten the last bit, that will be OK,

[Dusky]

If youre a bit handy you could make a torque multiplicator and use your wrench. :) easy to make, thick piece of steel with 2 square holes and a 1/2 piece of square bar.

[Frazer stuart]

In the end I tightened it as close as I could and then drove to the garage to get it nipped up properly. Apparently I was only 1 castle nut notch away... Just torqued it to 170, then 190, then 210 and kinda worked out how much extra force I was applying each time and extrapolated it out.

@moke spider I checked and there was plenty of gap on the tapered washer, thanks for the heads up.

@dusky I'd be intrigued as to how you can build a torque multiplier like that. I've had a quick Google and it looks like a little gearbox??

Thanks for all your help here chaps! :)

[Pete649]

You would just need to change the effective length of the torque wrench, 

 

like this

 

http://www.specialpa...que/torque.html

[Frazer stuart]

Ah pete649 that is so simple! Dunno why I couldn't work that out for myself...

Thanks for the tip, I'll definitely give that a go next time