Andrew Russell Posted March 11, 2001 Share Posted March 11, 2001 Have just returned from a most enjoyable adrenalin rush, blasting around the lanes, spoilt only by the departure of my nearside cycle wing which chose a opportune moment to detach itself from the stay! It had been bonded on with domestic type clear silicone and has stood up to five years of serious abuse. I think perhaps a better grade of bonding is now required! Previous threads have suggested either Sikaflex, Terroson 2K or 'Grip-fill gap filling adhesive. Where do you actually obtain such items, i've not come across them before? Thanks for any observations. Andrew Link to comment Share on other sites More sharing options...
Powderpuff Posted March 11, 2001 Share Posted March 11, 2001 Has the silicone failed, or have you had my problem where the powdercoat comes off the stay due to corrosion? Gordon Link to comment Share on other sites More sharing options...
Graeme Smith Posted March 11, 2001 Share Posted March 11, 2001 Claassic Carriage Company sell a product for bonding on wings - www.se7ens.co.uk. Actually, I was doing some kerb hoping at Pembrey yesteday and the vibration ripped off my bonded on wing! Any other ideas for holding on front wings other than silion bonding (not Pembrey proof) or bolts (I got nudged during a race last year. The wing came off (fine) but the bolt holding it ripped into the tyre (not fine). I nearly had to retire...). Link to comment Share on other sites More sharing options...
Andrew Russell Posted March 11, 2001 Author Share Posted March 11, 2001 It was a case of perhaps too little silicone applied in the first instance, not having built enough up around the stay. It has survived five years of abuse but it has simply become detached with air pressure. ( I was at an unlawful speed and accelerating, when the front just peeled away from the stay and there's not much you can do then, except hope that the low flying wing makes a soft landing!) The powder coating is perfectly intact....not original Caterham finish, having been recoated some time ago. Any idea where I can source the recommended goo? Andrew Link to comment Share on other sites More sharing options...
John E Posted March 11, 2001 Share Posted March 11, 2001 Andrew, I'm surprised at you, fancy you of all people admitting to such an event. Pleased though that you have at last got out and about. Just goes to show what all of that captivated frustration can drive us to. on a more serious note i recall reading recently about the substance you mention in your original post. The article was on this site and related to an owner who had made up some plates to increase the surface area for bondage???? Look at the Laybond website at www.laybond.co.uk On a similar subject I'm about to have all of my wings resprayed and holes and dents filled. what is the best way to fix flared wings without using unsightly bolts. I'm considering fibreglassing a plate under each front wing into which I would loctite a small stud. Having said that I'm open to suggestions. Maybe fixng through the indicator repeater units Edited by - John E on 11 Mar 2001 18:31:34 Link to comment Share on other sites More sharing options...
Paul Ranson Posted March 11, 2001 Share Posted March 11, 2001 Any idea where I can source the recommended goo? Sikaflex can be had from (at least) PartCo, similar gloop can be had from body repair suppliers. Last time I used some 'Tiger' stuff. I've also heard that windscreen bonding stuff does a good job, presumably tube ends can be sourced from the obvious places.... Paul Link to comment Share on other sites More sharing options...
Rob Walker Posted March 11, 2001 Share Posted March 11, 2001 Gripfill available at any builders merchant. Link to comment Share on other sites More sharing options...
Delberts Wallet Posted March 11, 2001 Share Posted March 11, 2001 I enquired when I was at Arrowstar the other weekend as to what they use. It car windscrreen bonding stuff which they will sell you if they have any in. Cost around £18+vat ish. Three of the retaining screws on my wings have almost pulled through so I'm going to fill the holes, respray the wings and bond them. Yahoo,I've got a car to beat my brothers Scoobydo teeth.gif Edited by - Gareth Harrold on 11 Mar 2001 20:58:27 Link to comment Share on other sites More sharing options...
paul jacobs Posted March 11, 2001 Share Posted March 11, 2001 Well, I've used "Gripfill", and as PR said, it's obtainable from any builders merchant at about 2ukp per tube. The last time I used the stuff, it was on a pair of flared wings, and I used a bit the size of a threepenny bitquestion.gif on the wing stay, and when I came to remove the wing, I had to cut it off with a Stanley knife, cause it was just delaminating the fibreglass when I tried brute force! Previously I had used the car for sprints/hillclimbs, and maxed it out at around the 135 mark, with it still intact, so had no qualms in using it again on the cycle wings. Incidentaly, I've overcome the excess lock, when the new cycle wings hit the body sides, utilizing the existing rack, if anyone is interested. Link to comment Share on other sites More sharing options...
Glenn Wheeler Posted March 12, 2001 Share Posted March 12, 2001 Do a search on tech talk using my full name and you will find an interesting thread on the subject including my alternative, using tie wraps. Cheers Glenn Wheeler Link to comment Share on other sites More sharing options...
Andrew Russell Posted March 12, 2001 Author Share Posted March 12, 2001 Thank you , one and all for the comments ands leads.....I will hit town at lunchtime and source the necessary. The wing did make a softish landing and after 30 minutes with the Brasso and Autglym, the modest scratches have all but disappeared, and the wing ready for another season. Now, all I have to do is to decide what compound is best for the job...Gripfill, Sikaflex or Windscreen bonding...... Andrew. Link to comment Share on other sites More sharing options...
EFA Posted March 12, 2001 Share Posted March 12, 2001 None, I tried this for years with the CF wings and found the only way to fix them on is to araldite a stepped piece of ally (or carbon) to the underneath which is then screwed to the stays. The stays will take an m6 RivNut for this purpose. Or fix them on with some caphead mushroom anodised bolts! Less unsprung weight than glue! Arnie Webb The Fat Bloke blush.gif in a Slow Old Vauxhall wink.gif Link to comment Share on other sites More sharing options...
mike ashurst Posted March 12, 2001 Share Posted March 12, 2001 I've used Glen's fixing method utilising nylon tye raps, which works a treat, this means that if you want to remove the wings you just cuty the raps and replace them when you re-fix the wings. Mike Link to comment Share on other sites More sharing options...
Graeme Smith Posted March 12, 2001 Share Posted March 12, 2001 I haven't looked up Glen's "patent" way of attaching wings using zip-ties, but I zip-tied my wing back on after losing it on Saturday and it came off next session when I went kerb hoping again. The zip-ties just broke - as I said Pembrey kerbs are vicous! Link to comment Share on other sites More sharing options...
tgracing Posted March 13, 2001 Share Posted March 13, 2001 'Kerb hoping' Graeme ? Is that where you try and go round the outside of someone on the kerbs hoping not to spin off? (Ho ho ho, I'm so funny...not). What size ty-wraps did you use Graeme ? I think from memory Glen's method said to use blinkin' big ty-wraps. My question at the time was how do you replace a knackered wing in a hurry? You would have to have a replacement wing all prepared a la method. Anything using silicone won't be usable in a hurry unless it is pre-prepared. Davebo C7 CAR Link to comment Share on other sites More sharing options...
stevefoster Posted March 13, 2001 Share Posted March 13, 2001 My wings are attached using glass fiber layered over the wingstays and matting into the glass fibre of the wing. This gave such a strong bond that the front wheel coming off and the entire cars weight on the wing and stays did not shift it. The wheel did a little dance under the wing and then took off. This was at 50mph on the track at Abingdon. There was a slight flat spot in the big brake disk where it became the new wheel. This has been replaced. The wing stays were bend up and out at an alarming angle No other damage done. Surprisingly the wing remained intact. Bolts would have cause stress weakness and it would have shattered. All I had to do was winch the wing stays back in to position using a rachet strap. Glass fibre em' on in my book. Link to comment Share on other sites More sharing options...
Simon Dart Posted March 14, 2001 Share Posted March 14, 2001 I got some loctite polyurethane stuff (type 3951)from RS to bond my new cyclewings on, and went to their web site to find out if there were any recomendations regarding bonding. To my horror several graphs indicated that unless the ambient temperature was at least 22 deg C for 5 days, I was not going to achieve full bond strength.15 deg C for any period of time only gets you 60% bond strength.You also need high relative humidity, at least 50% for a good bond. There's more to this bond stuff than meets the eye, me? I'm saving this job for the summer! Link to comment Share on other sites More sharing options...
Andrew Russell Posted March 14, 2001 Author Share Posted March 14, 2001 I can't wait that long...!!!!!!! I think I'll just have to heat up the garage when I refit the detached item... Don't think plod would appreciate the 'open-wheel' nature of my car! Andrew. Link to comment Share on other sites More sharing options...
Graeme Smith Posted March 15, 2001 Share Posted March 15, 2001 Davebo, Some of the kerb hopping was neat tight apexes smile.gif, some of it was "oh my god, I'm running out of exit room at a rather rapid rate... sad.gif My quick fix was to borrow a drill from a Porsche race team and drill thro' the wing where the holes in the wingstay were from when I used to bolt fix them. Positioning was easy as there was an extra blob of sealant on the wing where it'd seeped into the holes. Then stuck a ("borrowed")zip-tie down one hole and up the other one. Zip it together - viola! A road legal Caterham -if not that pretty. I really should stop driving the Caterham to test days 500 miles round trip away. Just a broken wing starts to make you sweat about how you're going to get home. 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