Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
Discovery 3 wheel studs
Good afternoon everyone!
Here's to hoping there some help out there;
I've got a Disco' 3 that I'm converting/upgrading for Overlanding.
I've purchased new Wolfrace Sahara Explorer 8.5 x 18 alloy Rims - just tried one of the new
wheels on & the studs are too short.
Are extended studs available & can they be installed (new wheel bearings front & rear are to be installed when the car goes in for modifying in a couple of weeks time).
Many thanks in advance for any help or advice.
PS: Ive not spoken to Wolfrace yet.
5th Feb 2022 2:44 pm
KevinD3
Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1277
Silly question, what makes you think they’re too short? Looking at the picture of the two studs, the red line is about where he bolt comes up to when done up, so looks about right?
What’s stopping the original studs going on?2008 HSE Stornoway Grey
My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕
5th Feb 2022 4:19 pm
Cody
Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
Hi Kevin
Thanks for your reply.
With the existing wheel nut, the shank (left of your red line) (which is internally threaded) goes through the alloy and its the face of the washer that tightens/presses up against the alloy wheel.
The new nuts sent by Wolfrace with the wheels by dont do this, they just appear to tighten up against the tapered face and as can be seen in the photos, the stud only threads into the nut by just over a 1/3rd - looks like I'm probably going to require longer studs..???
Anyone know what the press in stud shank diameter is..??
Many thanks
5th Feb 2022 4:29 pm
DN D3 Decade
Member Since: 23 Jun 2006
Location: W.London.
Posts: 2344
I’ve not heard of anyone having to fit longer studs. Wolfrace have produced a wheel that cannot be fitted straight on, safely, I would not modify anything, just return them for a refund. D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.
Last edited by DN on 5th Feb 2022 10:36 pm. Edited 1 time in total
5th Feb 2022 5:32 pm
Cody
Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
Hmmmm... Starting to think that way as well;
Ill be giving them a call first thing Monday
5th Feb 2022 5:36 pm
DN D3 Decade
Member Since: 23 Jun 2006
Location: W.London.
Posts: 2344
Let us know the outcome of this, others may want to try it also, or not, as the case may be.D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.
7th Feb 2022 1:55 pm
Cody
Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
So i spoke with Wolfrace this morning & to be fair to them so far they have been very helpful. They advised that as long as 7 complete turns of the wheel nut was achieved this would be enough - the jury is out on this one on the moment.
Anyway, i popped round to the garage & grabbed an old wheel hub out of their skip so i could do some more checks.
It turns out the centre hole in the rim is 73mm diameter & the start of the hub shaft is also 73mm - however it then tapers out to 84mm, thus preventing the inside of the wheel butting up to the face of the hub by around 10mm.
Ive sent the photos to Wolfrace & I'm awaiting a further response.
I have some 10mm spacers that would overcome this issue, although the wheel studs would have to be longer. I have taken out a stud & found that a Grayston SS44 wheel stud should fit (M14 x 1.5mm with 15mm diameter spline 70mm long), so i have ordered one to give it a try.
Photos of the issues;
7th Feb 2022 2:14 pm
DN D3 Decade
Member Since: 23 Jun 2006
Location: W.London.
Posts: 2344
Is that a Disco 3 hub ? I would of thought the best thing would be for them to machine the rim centre correctly to accept the hub properly, and then make sure the nuts go on the studs sufficiently. Something that should have been done already, if they are meant to fit a D3 D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.
7th Feb 2022 2:37 pm
Cody
Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
My daft! Forgot about the brake disc fitting between the hub & the rim Lol!
So just off to get a brake disc & then see if the wheel nut will go on 7 turns - Wolfrace have come back to me & say that's all it needs, but as can be seen from the very first photos i posted I'm far from convinced this is enough - just doesn't seem right to me
Im off to the Western Sahara, so i need to be sure these are going to be ok;
7th Feb 2022 3:02 pm
al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10352
Another daft question, but are wolf races weight rated high enough for your D3.
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7th Feb 2022 6:11 pm
Cody
Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
Yeh, these are rated at 1250kg per wheel which is why i went for this particular rim.
Ps: Done the test with the disc in situ - just under 6 turns of the wheel nut - so waiting to here back from Wolfrace now
7th Feb 2022 6:15 pm
galwaygreen
Member Since: 30 Oct 2011
Location: plymouth
Posts: 6525
modification and insurance come to mind reading this thread
8th Feb 2022 12:24 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
If you look at the image of the wheel nut there is no thread in the part of the nut that isnt used so there would be no benefit in fitting longer studsAndrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
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8th Feb 2022 6:52 am
CurlyWurly90
Member Since: 09 Aug 2018
Location: Kent
Posts: 7
I was always told you need 1.5 times the diameter of the stud protruding for proper nut to stud engagement with tapered nuts and have always made sure to play it on the safe side by making sure the studs are at least flush with the top of the nuts (open ended type).
You mentioned that 7 full turns was suggested by the manufacturer and just checking the thread pitch for m14 studs is 2mm. On that basis 7 full turns is 14mm of thread engagement, working on the theory of 1.5 times the thread diameter you really need 21mm of thread.
You said you could only get about 6 turns which works out at 12mm of thread/stud engagement so you need 10mm longer studs to get the 1.5 times stud engagement if you want to run with that theory.
That said you would only need +2mm-ish longer studs to meet the manufacturers requirements but I’m pretty sure studs only come in 10mm increments!
Double check the numbers but that should give you a good steer!
Hope that helps
8th Feb 2022 10:28 am
Cody
Member Since: 05 Feb 2022
Location: Great Heck
Posts: 14
Thanks to everyone for your input & comments!
To answer all your points raised;
1) Due to all the modifications being done I will be obtaining specialist insurance with all the modifications listed - as we know, insurance companies will try & riddle out of liability for the slightest of indiscretions.
2) The supplied wheel nuts are threaded all the way through (appreciate first photos don't show it so I've added a couple more).
Wolfrace have said to send the wheels back (they will collect) & they will machine 5mm off the inside - Im not too sure about this due to the resulting offset, plus Ive already had the tyres fitted (my bad) & lobbed all the packaging.
So at the moment I am going down the route of longer studs, (Wolfrace have said they will reimburse the cost) if i can get some that fit - as mentioned Ive ordered one to try, so I'll let you all know how it goes;
I would like to say, that whilst there is this problem with the wheels, Wolfrace (so far) have been excellent in trying to resolve the problem.
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