wheel nuts

Post by **callyspoy** » Fri Nov 16, 2007 11:53 pm

can anyone advise as to where to buy wheel nuts that are a wee bit bigger please? i got the ones on esm that are for alloy wheels, but these are too small...so they need to be bigger in size, but the same thread as a minor...im certain this would have been asked before...

Post by **MoggyTech** » Sat Nov 17, 2007 12:55 am

http://morrisminorspares.co.uk/shop/pro ... 5aed5f174b

Standard Wheel Nut

Post by **Matt** » Sat Nov 17, 2007 7:31 am

Theres a wide variety of mini wheelnuts avaliable, and they have the same thread

Post by **plastic_orange** » Sat Nov 17, 2007 10:47 am

Try the following:

http://www.speedshack.co.uk/

http://www.mistertee.co.uk/

Post by **bmcecosse** » Sat Nov 17, 2007 12:09 pm

Why would you want 'bigger' wheelnuts ? Are you using non-standard wheels ?
Many years ago I did indeed make some bigger wheelnuts - for using Viva wheels on my Mini - the first Mini with 12" wheels in Scotland! I simply used hex bar, bored and tapped to 3/8" UNF, and chamferred to suit the Viva wheel nut wells which were rather different to Mini originals.
If you have found some wheels with the correct 4" pcd to suit a Minor - do tell us please!

Post by **IslipMinor** » Sat Nov 17, 2007 12:18 pm

Why do you need 'bigger' wheel nuts? If the holes in the wheels you are going to fit are much bigger than the standard 3/8", they should not be fitted to a Minor.

The other thing to be very careful of is the angle of the countersink in the wheel itself.

For example, the Farina A40 uses the same thread size, but a different countersink angle in the wheel, so needs a different chamfer on the nut. The two must be matched.

Post by **callyspoy** » Sat Nov 17, 2007 12:29 pm

hi friends, i am putting marina discs and marina axle on the car. the thread seems the same as a minor(i tried a nut on the disc thread) once again, i haven't explained fully my intentions! i do apologise!

Post by **MoggyTech** » Sat Nov 17, 2007 12:35 pm

Well Marina PCD is 3.75 so I asssume you will be using Marina wheels. So best to use the original Marina Wheel Nuts. You need the EXACT thread match as this is a safety critical item. There's a whole section in the original BMC manual about the similarity between thread types, and why great care has to be taken not to get them confused.

Post by **callyspoy** » Sat Nov 17, 2007 12:37 pm

also...can you fit a servo/reservoir kit up to the older type brake master cylinder?

Post by **plastic_orange** » Sat Nov 17, 2007 12:42 pm

mistertee on the link I posted is probably the most knowledgeable person regarding all types of wheelnuts - just E mail him and he will respond.

Pete

Post by **callyspoy** » Sat Nov 17, 2007 1:01 pm

pete, i've just e-mailed "maurice", so thanks for that!
and moggytech, i am going to be using non standard wheels on marina pcd, and the hole size on the wheels is too big for the marina studs...its funny the amount of problems i am going to have next week! i've taken the week off work to change the brakes to discs up front, change the axle, fit a servo, fit the reservoir kit, and get a new exhaust made up...optimistic??!! hahaha! no...

Post by **Alec** » Tue Nov 20, 2007 7:30 am

Hello Callyspoy,

I don't like the sound of the wheel's fixing holes being larger than the studs? Also some wheels also rely on the centre hole bore to accurately locate them on the hub. I don't know if the Marina hub\wheel combination has that, but if not I would say what you have will not be workable.

Alec

Post by **MoggyTech** » Tue Nov 20, 2007 12:48 pm

You need to do some reasearch into Hubcentric versus LugCentric wheel fittings. The Marina Hub is Hubcentric, and relies on the centre bore of the wheel being a snug fit over the hub centre flange. If you fit a wheel that has the wrong centre bore, the studs have to take the full weight, which they are not designed to do.

You can get Hubcentric adaptors from most alloy wheel companies, but may have to get custom machined ones, depending on the size you will need.

Further, the wheel nut/stud countersunk area, has to patch the profile of the wheel mounting hole exactly.

Post by **IaininTenbury** » Tue Nov 27, 2007 12:55 am

Seen some alloys where the nut has a sort of sleeve that fits in the hole in the wheel. The holes are obviously much larger than the studs being designed for these special nuts. If I remember correctly they were Triumph Dolomite alloys which a mate was fitting on his Herald - the same stud spacing as a Marina. Just wondering if its this type of wheel that you have and if so a set of Dolomite nuts may be the answer.

Post by **IaininTenbury** » Tue Nov 27, 2007 12:57 am

Thinking about why this design existed, I guess it may be to stop the threads of the stud chafing the soft alloy wheel. Might be wrong though. Best I could come up with this time of night

Post by **bmcecosse** » Wed Dec 05, 2007 11:06 pm

Many alloy wheels are indeed located with 'sleeve' nuts - it would be extreme folly to try to locate that type of wheel with taper nuts with no sleeve!! What wheels are you going to use with your Marina hubs ? Note that 'modern' car wheels WILL NOT fit - they are all metric PCD with the only obvious exception of the MGF wheels which are 3.75" pcd and will fit - provided you use the correct nuts!

Post by **twincamman** » Thu Dec 06, 2007 10:28 am

The reason that alloy wheels use 'sleeve' nuts is to compensate for the thicker centre of the wheel, compared to a steelie. They also use a washer to stop the nut biting into the alloy. The stud holes in an aftermarket wheel are necessarily oversized to allow a variety of fitments, i.e. many cars may share a PCD, but the studs may be a variety of different sizes.
It may be possible (I've never tried it) to shorten the sleeve on an alloy wheel nut to act as a locator if the stud holes are bigger than the studs.
Perhaps someone here has tried it and can give you a more definite answer.

Mistertee really knows his stuff about wheel nuts, and he's also qualified to give engineer's reports for insuring modified cars.

Post by **dunketh** » Thu Dec 06, 2007 11:53 am

If you fit a non-hubcentric wheel you'll probably never get the things balanced - even if they are centered on the wheel nut chamfers.
I had this problem using Mondeo alloys on my old Fiesta mk2.
They fitted but there was no cure for the wobble.

Apparently you can buy adapters, spigot rings, for this purpose.

Post by **KirstMin** » Thu Dec 06, 2007 1:34 pm

dunketh wrote:If you fit a non-hubcentric wheel you'll probably never get the things balanced - even if they are centered on the wheel nut chamfers.

Oh my! I'm getting that ground hog day feeling

Doesn't this hub centred wheel business crop up about once every six months or so?

I'm interested... what morris minor do you drive that has its wheels centred on the hubs? I have seen many wheels (standard) go onto mine over the years and the centre hole is BIGGER than the hub. Not by much but it is the studs which centre the wheel and take the stress on a standard set-up. Unless they built my minor differently to everyone else's?

I have tapered nuts (with a sleeve) on my alloys now and they again centre on the stud, not the hub. They centre fine with NO balancing issues and that's been tested up to 105 mph.

I take some peoples points that because the alloys are thicker they put more stress on the nuts and some specialists suggest that ideally 'o rings' should be used to increase the hub size so that the wheel is mounted on the hub. O-rings are available from every decent wheel supplier.

But there isn't a minilight (or replica) reseller out there - including the morris minor specialists - who say anything other than that the alloys are a straight swap for the original. So how come they dont suggest o rings, adapting the hub or anything else for that matter?

Post by **bmcecosse** » Thu Dec 06, 2007 1:38 pm

I agree - Minor wheels are certainly NOT centred on the hubs - neither are Mini or MGB or TR7 wheels - dunno about anything else!