Member Since: 28 Nov 2010
Location: Bremer Bay Western Australia
Posts: 13
Wheel nut turns DakarZero
Afternoon all,
Wondering if anyone up there who has EvoCorse DakarZero 18 x 8.5 (35 ET) fitted to their D3 or D4 could tell me how many turns of the wheel nuts they take to fit to tight?
Wanting to be sure its at least the LR 9 turns spec before taking the plunge on a set.
Thanks from down here in Aus.Swoz3
24th Aug 2021 7:44 am
nigethecat
Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4142
Great looking wheels (and not cheap either !!)
Would it not be better to use the torque setting (140 N-m) rather than number of turns ((don't know the answer so a genuine question)?I want to see the sweets before I get into your windowless van... I'm not stupid!
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Firenze Red D4 HSE 2014 (gone)
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24th Aug 2021 8:30 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072
If you haven’t got a full nut of thread you stand the risk of stripping the thread and possibly losing a wheel, that is why the OP is asking before making a costly purchase. It can when others can't,
It will when others won't,
It goes where others don't.
24th Aug 2021 10:28 am
RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13079
nigethecat wrote:
Would it not be better to use the torque setting (140 N-m) rather than number of turns ((don't know the answer so a genuine question)?
When you tighten a nut, you are putting the threads in to shear. The more threads you have, the less shear force is experienced by each mm of thread length. For a given diameter of stud, the number of turns easily tells you the length of thread that is resisting the shear and so what load/mm2 the material is experiencing. If you have nine turns then you have nine circumferences of thread resisting shear. If you have only one turn , then each bit of thread is taking nine times as much load and so is more likely to fail.
It's also worth remembering that a lot of the required torque is "used up" in overcoming friction between the threads and the between the face of the wheel and nut - the very friction that stops it undoing in use, of course. If you apply 140Nm of torque to one turn of thread, the bolt will experience much more load than it will with several turns of thread simply because there is less friction "using up" the torque - assuming the thread doesn't strip off first, of course.
The friction is one reason why greasing bolts can lead to failure - the grease reduces friction so the threads / bolt "see" more load for a given applied torque.Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
Last edited by RRSTDV8 on 24th Aug 2021 11:19 am. Edited 1 time in total
24th Aug 2021 11:13 am
Swoz3
Member Since: 28 Nov 2010
Location: Bremer Bay Western Australia
Posts: 13
Appreciate the responses, thanks.
Yes, 140 nm is the torque spec, will apply that .
Yes too, I need to know for sure about the wheel nuts going on enough (nine turns of a 1.5 thread = 13.5mm and 14mm = stud width). Expect they do, but I had hassles with some common aftermarket alloy's hole design not allowing enough threads on, and just want to be absolutely sure before making the purchase.
CheersSwoz3
24th Aug 2021 11:15 am
jonno1
Member Since: 16 Jun 2010
Location: SW London
Posts: 706
Just read the post from Swoz3 and the reply from M3DPO.
The level of expertise on this site never fails to to astonish!!
Long may it be so.
24th Aug 2021 8:14 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072
It can when others can't,
It will when others won't,
It goes where others don't.
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