7Nut Posted January 3, 2008 Share Posted January 3, 2008 Does anyone know who makes this item? Could it be Arch? Thanks Link to comment Share on other sites More sharing options...
knowley Posted January 3, 2008 Share Posted January 3, 2008 Lifeline Link to comment Share on other sites More sharing options...
rgrigsby Posted January 3, 2008 Share Posted January 3, 2008 Or Racetech or even SPA.. I maye have a lifeline one for sale soon if you are interested. I'm thinking of upgrading to the SPA one with a builtin in connector for some buttons. Rob G www.SpeedySeven.com Link to comment Share on other sites More sharing options...
Willie. Posted January 3, 2008 Share Posted January 3, 2008 Slight hijack...but I assume you've got your answer 😬 Anyone ever get play in the QR? I was in a single seater a week ago, and the play in the QR was incredible. I would imagine the wheel would be on/off alot more in it, than in a Caterham though. Willie Link to comment Share on other sites More sharing options...
knowley Posted January 3, 2008 Share Posted January 3, 2008 Yes opposite lock... TADTS a well placed rubber O ring can help. Link to comment Share on other sites More sharing options...
Willie. Posted January 3, 2008 Share Posted January 3, 2008 Cheers Knowley, You'd think someone would develop one on a taper...couldn't be that hard Link to comment Share on other sites More sharing options...
CageyH Posted January 3, 2008 Share Posted January 3, 2008 A taper that moves when the splines are worn To help resolve the wear, keep it lubricated, but mond your clothes if you do... Wear was a big factor as the Caterham supplied ones were apparently made of the wrong materials, and wore quickly. Newer versions don't have this problem anymore, or so I am told. Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
Willie. Posted January 3, 2008 Share Posted January 3, 2008 Cagey, I'm only thinking out loud. Most I've seen work on a hex bar and socket type of thing. Exactly the same as splines, pushing off/on is going to wear it. A taper is an easy way to remove any wear/slack. Sierras use a tapered hex drive, with a bolt that tightens it all up nice. I'm sure it would be possible, to incorperate a taper, or some means of removing the slack, in the design. Major factor here is the cost of added complication. Willie Edited by - Opposite Lock on 3 Jan 2008 19:52:19 Link to comment Share on other sites More sharing options...
CageyH Posted January 3, 2008 Share Posted January 3, 2008 I understand, but the practicalities of it being quick release are lost if you have to adjust it on the splines. I too was thinking out loud. I got through my quick release column in about 18 months in my Caterham before it was too slack to pass an MOT. When I researched what to do, I was effectively told it was the materials Caterham had chosen to use... I think the original column was nickel plated, which wore out quickly. I now use my QR less than I did before.... It's also of a different design. Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
rgrigsby Posted January 3, 2008 Share Posted January 3, 2008 My Q/R column has been on the car for over 4 years and it doesn't have any noticeable play in it. The wheel is taken on and of the car all the time so it's been well used. I can't remeber which manufacturer mine is but I think I think it's lifeline. Rob G www.SpeedySeven.com Link to comment Share on other sites More sharing options...
Peter T Posted January 3, 2008 Share Posted January 3, 2008 The main reason why the splines wear is that they are not a hardened steel material. When steel is hardened it becomes very brittle and can snap in the event of a shock loading fracture which contravenes the safety to which car makers abide to. The steering material has to bend in the event of a car crash loading so the material is quite soft in terms of wear and tear.This leads to wear on the splines on the removable steering wheel boss. Link to comment Share on other sites More sharing options...
Willie. Posted January 3, 2008 Share Posted January 3, 2008 Peter...did Caterham tell you that when you complained? 😬 I don't think that theory would really apply to the boss. In my humble opinion, they should be hardened...its madness not to. In the event of a crash, I'd far rather have a wheel to hang onto, than the boss to snap and leave a sharp column to impale my eyeball. Case hardening would be suitable, as it's only the mating faces (To a shallow depth) that are hardened...leaving the normal material underneath. Link to comment Share on other sites More sharing options...
Irrelevant Posted January 3, 2008 Share Posted January 3, 2008 TADTS Mine doesn't . . . .it's a Lifeline one like rgrigsby's. Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted January 4, 2008 Leadership Team Share Posted January 4, 2008 My last car had one (that I fitted) for around 6 to 7 years - very minor movement but no problems with wear. My new car has the original that was fitted from new in 1999 - the same. Both are Racetech (now checked!). Maybe not really a case of TADTS And I never lubricate the splined column, in fact I keep it wiped clean. Unless dirt/grit gets onto the splines, removing and refitting the wheel cannot possibly be the cause of wear - the slight movement that will always exist in a splined joint will gain more wear during normal use through vibration and turning the wheel. It also has to be a parallel spline because any taper would add the possibility of the setup binding and not releasing in an emergency. There was an issue with some of the columns some years ago that had more play from new than they should have. Also it is possible to lock the wheel on to the column whn it's not in the fully down position - this results in 1 - 2mm of fore/aft movement. Stu. www.superse7ens.co.uk..........the rebuild 😬 Edited by - sforshaw on 8 Jan 2008 18:50:34 Link to comment Share on other sites More sharing options...
RiF Posted January 4, 2008 Share Posted January 4, 2008 Raceparts say theirs does not get the play in it. Made properly. They did supply CC for a while. We sell them but they need to be welded on! Stillpushing for an all in one version but like bashing my head against a wall with them. RiF Driving one of the first Duratec 7, and building CA07BON for Henrietta 😬 😬 😬.for pictures of 7 and carbon andCA07BON Link to comment Share on other sites More sharing options...
mav Posted January 4, 2008 Share Posted January 4, 2008 Raceparts / Racetec seem not to have any play. The lifeline ones did have quite a lot of play in them... Link to comment Share on other sites More sharing options...
Irrelevant Posted January 4, 2008 Share Posted January 4, 2008 Raceparts say theirs does not get the play in it. What would you expect them to say . . . "yes, our bosses are sh1te and develop play after a few miles". . . . no, of course not. I bet Lifeline, Spa, and all the other QR boss manufacturers would say their bosses don't get play as well. I suspect they're all much of a muchness and you're either lucky or not wrt whether yours wobbles or not. Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted January 4, 2008 Leadership Team Share Posted January 4, 2008 Adam - I think that's maybe a tad unfair! We all have experience of our own cars and mostly heresay of others. Maybe a quick pole of QR columns would be more scientific: I'll start: 2 x Racetech QRs, no excess play. Who's next ?........ Stu. www.superse7ens.co.uk..........the rebuild 😬 Edited because I really should check which QR is fitted before opening my mouth! Still no play though! Edited by - sforshaw on 8 Jan 2008 18:49:02 Link to comment Share on other sites More sharing options...
irrotational Posted January 4, 2008 Share Posted January 4, 2008 uh if someone tells me how to work out what mine is then ill add it? Pretty sure mine is the original from a 97 car and has no perceivable movement.... didnt realise QRs wore out until I read this thread.... --- this is a local sig for local people! Link to comment Share on other sites More sharing options...
Dee Pee Posted January 7, 2008 Share Posted January 7, 2008 One Racetech 9yrs old. No wear and tight as new, small amount of Copaslip. Biggest problem is locking the last few millimetres securely. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted January 7, 2008 Share Posted January 7, 2008 Lifeline - assuming it was fitted to car from new - 5 years old 24k, wobbles like a jelly, despite recently-added o-ring. May need to do something to firm it up a little (stop it !!) before MOT in a month (my first with a 7). 7 related photos Link to comment Share on other sites More sharing options...
FTH Posted January 7, 2008 Share Posted January 7, 2008 Racetech- 7 yrs old, no play, theres a pattern developing here. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted January 7, 2008 Share Posted January 7, 2008 If I wanted to replace my Lifeline QR boss with a Racetech one, is it a simple fit. Which one - seem to be a few on their website. 7 related photos Link to comment Share on other sites More sharing options...
Julian Thompson Posted January 7, 2008 Share Posted January 7, 2008 2 lifeline ones - one bought new in 2002 and one already on the Blackbird in 2007. Both crap. Link to comment Share on other sites More sharing options...
Willie. Posted January 7, 2008 Share Posted January 7, 2008 Do all these QRs require a new drive (Splines/hex) welded onto the existing column? Espically interested in the Racetech one. Link to comment Share on other sites More sharing options...
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