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Re: Grinding from back wheel

Posted: 05 Apr 2018, 21:15
by magictricky
Right so that 1/4 inch movement may well need to be even tighter.
Seemed to take up the slack though.
I'll know more when i road test it.

Re: Grinding from back wheel

Posted: 05 Apr 2018, 22:59
by 937carrera
Be careful about over tightening the nut.

I undid mine with 3/4" ratchet and tightened up by hand without going to ridiculous extremes when I first did the brakes.

Next time I couldn't get the nut undone. I have a very good & expensive 650Nm whizzy impact gun. Didn't budge the castle nut, and I expected that it would simply impact it off.

Eventually I had to use a 7' steel pole over the 4/4 ratchet - thick wall because the normal ally bar was bending :shock:

I'm still confused about what happened, threads were clean and undamaged. The split pin will stop the nut slackening off.

By the way, the rear bearings in a T25 aren't taper bearings so they don't adjust like other vehicles https://club8090.co.uk/forum/viewtopic.p ... r#p8207550

Re: Grinding from back wheel

Posted: 06 Apr 2018, 00:05
by clift_d
The nut is supposed to be tightened to a torque of 500Nm then turned to the next slot before sticking the split pin in, which is roughly equivalent to 50kg load on the end of a one metre bar.

Re: Grinding from back wheel

Posted: 15 Apr 2018, 17:41
by boatbuilder
Weight of person in newtons (W)
11 stone = 685 newtons
12 stone = 747 newtons
13 stone = 809 newtons
14 stone = 871 newtons
15 stone = 934 newtons

Hub Nut Torque(HNT) is 542nm (400 ft lbs)

Distance = HNT ÷ W
E.g for a 12 stone person...
Distance = 542÷747 = 0.72

So if you stand on an extension pole(totally horizontal) 72cm away from the hub nut, you should produce the correct torque!

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