N Blandin Posted March 23, 2014 Share Posted March 23, 2014 I've appear to have picked up a lovely set of Barnbys butI'm now wondering if my studs are long enough. There is 20mm showing out of the hub. I know I need to get some stepped nuts as well. I don't really fancy replacing the studs...faff or what! Link to comment Share on other sites More sharing options...
Jon Stewart Posted March 23, 2014 Share Posted March 23, 2014 I found the same thing and had to fit longer studs. I then had the problem of some of the nuts bottoming out before clamping as some of the nut threads hadn't been cut deep enough. My local machine shop drilled the nuts through and they've been fine for the last 8 years or so. You may also have to grind some of the de dion ears as it might foul the inside of the wheel. Link to comment Share on other sites More sharing options...
Rob Walker Posted March 23, 2014 Share Posted March 23, 2014 I never had to fit extended studs to use Barnby wheels, are you shure you need them? If you offer up the wheel to the hub then slide the nut unto the thread through the wheel you should have a min of 10mm of sleeve nut to tighten until it seats and clamps the wheel to the hub. Edited by - Rob Walker on 23 Mar 2014 09:56:23 Link to comment Share on other sites More sharing options...
Delbert Posted March 23, 2014 Share Posted March 23, 2014 I needed different wheel nuts when I moved off Barnby wheels onto the Caterham Appollo The nuts that hold the Barnbys on are like a T shape and the shaft of the nut goes through the wheel when tightened up on the stud . There was even a 3 mm isolating washer between the wheel and the head of the nut When I transferred wheels the closed ended nuts fitted correctly so I would assume that the stud is the standard length So different wheel nuts not different studs I guess the test is offer up a wheel an see the gap between the stud and the "stud hole" ( I am sure there is a better name than that but for the life of me I cannot think of one ) Hope that makes sense Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted March 23, 2014 Member Share Posted March 23, 2014 Could you add a photo of the bits? Jonathan Link to comment Share on other sites More sharing options...
Delbert Posted March 23, 2014 Share Posted March 23, 2014 Will try to embed an image later but this image graphically explains my set up . Ignore the gap , focus on the nut http://craigsphoenix.se7ens.net/images/wheelprob.gif Edited by - Delbert on 23 Mar 2014 10:23:58 Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted March 23, 2014 Member Share Posted March 23, 2014 Fascinating, thanks. I see what you mean. Nigel: Are those the same "stepped nuts" that you are discussing? Jonathan Edited by - Jonathan Kay on 23 Mar 2014 10:42:40 Link to comment Share on other sites More sharing options...
Pendennis Posted March 23, 2014 Share Posted March 23, 2014 I have a set of Barnbys and use the long studs, I bought a set of SN23 nuts/washers from Rally Design, they don't bottom out and are spot on. These are the nuts Link to comment Share on other sites More sharing options...
N Blandin Posted March 23, 2014 Author Share Posted March 23, 2014 Thanks guys, that was quick! The nuts I'm thinking of are as per Delberts drawing, I just didn't know if the thread went down inside the mounting hole. I'll pick them up tomorrow so will check then and also have a check on my ears. Link to comment Share on other sites More sharing options...
N Blandin Posted March 23, 2014 Author Share Posted March 23, 2014 As an extra thought, where can I get the nuts as described? Link to comment Share on other sites More sharing options...
ECR Posted March 23, 2014 Share Posted March 23, 2014 They're generally known as sleeve nuts .... google sleeve nuts for alloy wheels Edited by - ECR on 23 Mar 2014 11:15:12 Link to comment Share on other sites More sharing options...
Pendennis Posted March 23, 2014 Share Posted March 23, 2014 Did you not see my post it says the correct nut as supplied by Rally Design 😬 Link to comment Share on other sites More sharing options...
A10ROX Posted March 23, 2014 Share Posted March 23, 2014 If you're unsure of the history of your new purchase, then I would highly recommend sending them back to Barnby for crack testing ... You can not generally see the cracks until the centres are stripped ... The consequence of one giving way is not a risk worth taking (IMHO) Main reason for the post is I suggest buying a few extra sleeve nuts as the tolerances are very tight and more so when warm ( or even hot depending on use or abuse ) Link to comment Share on other sites More sharing options...
N Blandin Posted March 23, 2014 Author Share Posted March 23, 2014 At the time I didn't Pendennis 😬 calling Rally Design. The wheels have been crack tested and overhauled by MB, so I'm happy there too Link to comment Share on other sites More sharing options...
N Blandin Posted March 24, 2014 Author Share Posted March 24, 2014 I have just tried to fit up to check and... The de doing ear is AWFULLY. Close to the rim as Jon suggested, I don't fancy grinding them too much The studs come flush with the outer face of the centre, so all of the "inset" thread on these new nuts will be what secured the rim. I know these issues are surmountable, but I don't know if I'm in the mood Link to comment Share on other sites More sharing options...
A10ROX Posted March 24, 2014 Share Posted March 24, 2014 Stud length appears right You will need to be careful on the placement of wheel weights on the inside as these will also foul on the dedion Link to comment Share on other sites More sharing options...
N Blandin Posted March 24, 2014 Author Share Posted March 24, 2014 Yes, I can see that. What would you say is an acceptable gap 'twixt rim and de Dion ear? Link to comment Share on other sites More sharing options...
Rob Walker Posted March 24, 2014 Share Posted March 24, 2014 min 3mm ideal 5mm Link to comment Share on other sites More sharing options...
N Blandin Posted March 25, 2014 Author Share Posted March 25, 2014 Thanks, that looks do-able Link to comment Share on other sites More sharing options...
Rob Walker Posted March 25, 2014 Share Posted March 25, 2014 IIRC on my car it was the ends of the de dion tube that the ears mount onto that needed fettling not the ears. Link to comment Share on other sites More sharing options...
Englishmaninwales Posted March 25, 2014 Share Posted March 25, 2014 Quoting Rob Walker: IIRC on my car it was the ends of the de dion tube that the ears mount onto that needed fettling not the ears. Same as mine Link to comment Share on other sites More sharing options...
Dickie Normuss Posted March 25, 2014 Share Posted March 25, 2014 My set-up is the nut/washer as per Delbert's diagram, no issues. I did need to fit new radius arms with the cut out to clear the tyre though. Link to comment Share on other sites More sharing options...
N Blandin Posted March 25, 2014 Author Share Posted March 25, 2014 Update... Nuts here, too much chrome, off to machine them down tomorrow Rims clear the de dion tube, radius arms and arb The original nuts without washers fit enough to look at the rims and perv a bit 😬 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now