Spitfire2500 Posted August 6, 2009 Share Posted August 6, 2009 Anyone tried the Poly bonnest cones that, er, Quiller's are advertisting?http://www.quillertriumph.co.uk/Quiller/Parts/partsnewproductsbonnetcone.htmJust curious cause I'm getting really fed up of replacing the standard ones every six months or so when I'm using the Spit regularly >:( Link to comment Share on other sites More sharing options...
Craig Gingell Posted August 6, 2009 Share Posted August 6, 2009 Hmmm, correctly positioned and adjusted they last for years. I guess Quillers haven't worked that out and have fixed the consequence of a problem rather than look at the cause of the problem. Link to comment Share on other sites More sharing options...
Deleted User Posted August 6, 2009 Share Posted August 6, 2009 Spitfire4 wrote:I guess Quillers haven't worked that out and have fixed the consequence of a problem rather than look at the cause of the problem.Now why doesn't that surprise me (dizzy) Link to comment Share on other sites More sharing options...
thescrapman Posted August 6, 2009 Share Posted August 6, 2009 Spitfire4 wrote:Hmmm, correctly positioned and adjusted they last for years. I guess Quillers haven't worked that out and have fixed the consequence of a problem rather than look at the cause of the problem.Sadly not totally true.A couple of years ago there seemed to be 2 variants about. 1 made with soft rubber (you can dig a nail into them and it marks it) and hard rubber ones. The latter seem to be infinately better, and infinately rarer.The soft ones are rubbish.CheersColin Link to comment Share on other sites More sharing options...
Spitfire2500 Posted August 6, 2009 Author Share Posted August 6, 2009 thescrapman wrote:Sadly not totally true...1 made with soft rubber (you can dig a nail into them and it marks it) and hard rubber ones. The latter seem to be infinately better, and infinately rarer.The soft ones are rubbish.Yes -- the soft ones are utter crap. This one was put on the car in October last year and has done circa 1200 miles :(The other one isn't much better. At the time Chic (Doig) could only supply soft ones, and he did warn they mightn't last long. I'd be more than happy with the hard rubber ones if I could get them.When I got the car in 1985 it still had the original cones fitted by the factory and they lasted for at least another four or five years (it's a '78 car)... Link to comment Share on other sites More sharing options...
Steve Cureton Posted August 6, 2009 Share Posted August 6, 2009 I bought a pair from Stoneleigh, fist time I trial fitted the bonnet one of them broke off! In all fairness I was starting from scratch so it's not really surprising that it was probaby way out of line. Does this mean I hold the record - zero miles? Link to comment Share on other sites More sharing options...
Spitfire2500 Posted August 6, 2009 Author Share Posted August 6, 2009 Steve_Curton wrote:Does this mean I hold the record - zero miles?I certainly can't better that Steve :X ;D ;D Link to comment Share on other sites More sharing options...
ferny Posted August 6, 2009 Share Posted August 6, 2009 I've had the same issue. Old cones broke so I eventually bought and fitted new ones which died after a year so fitted another set which died after a few months. The bonnet and cones were correctly adjusted. I'm going to try a thick rubber on the bulkhead and see how well it clamps down onto that as I'm fed up. It may not work as well as a good cone but will last longer. Don't forget that every time a cone fails a fairy dies and your lights change their adjustment. Link to comment Share on other sites More sharing options...
Craig Gingell Posted August 6, 2009 Share Posted August 6, 2009 thescrapman wrote:Sadly not totally true.Ok, I guess I've just been lucky... Link to comment Share on other sites More sharing options...
Clive Posted August 6, 2009 Share Posted August 6, 2009 I had an idea (!) a while ago of using one of those mini cotton-reel exhaust mounts with a nylon or similar cone screwed on one of the studs, the idea being that the rubber (good at absorbing the vibrations) is still there, but not dirctly in contact with the locating bits. May actually get round to it sometime......must look on fleabay for some nylon bar! Link to comment Share on other sites More sharing options...
Deleted User Posted August 6, 2009 Share Posted August 6, 2009 Marcus has a set of old screwdriver handles turned and threadded on the lathe! Lasted him years (and I mean years)I have had the same ones on for 3 years and they get some battering! mine are adjusted correctly and will not need replacing for years to come! Link to comment Share on other sites More sharing options...
Nick Jones Posted August 6, 2009 Share Posted August 6, 2009 I think there might be another reason why they fail. The proper original ones have a wide flat head on the threaded stem, almost the same diameter as the base of the cone, moulded into the base of the cone. This gives plenty of support for the rubber and a nice big surface to bond to. The modern replacements I've seen are moulded onto a bolt head which does give enough support.You can sort this by putting a washer under the base of the cone and locking in place with a nut. This washer does the support instead. My current pair, supported in this way have been on about 10 years - and that's not because my bonnet fits so beautifully.........If the polybush ones are also moulded over the head of a bolt they won't last much longer than the rubber ones IMO.Nick Link to comment Share on other sites More sharing options...
GT6 M Posted August 6, 2009 Share Posted August 6, 2009 AS Bob said, I made some up from an old Screw driver handle, the really good hard type, very easy to doo tooThink Nicks got it right, in that the old ones were better stuff, and had a bigger base,But to get bonnets fitting really good, and ..flush.. along the top , then they have to have ..side loading.. on them, to pull the bonnet ..flat.. and this is what really kills the soft ones,they go out of shape, and a week after you got the bonnet right, its ..moved again.. :-/ :-/a few of the Ladds saw mine, and seemed to be impressed with themIf you no got a lathe, then they can bee ..coned.. by using a file/drill, surform / drillyou need a decent long bolt, and drill thru the cut off handle, then tap it , put it on to bolt, so that it scews against the ..head.., put a thick washer on the top, and a ..lock nut.. and then turn it doon,.this way, you got a steel bolt all the way thru, so it wont distort much, and will no snap off eitherthe rest of the bolt, will go into the adjuster ,on the bonnetreally worth while, if your bonnets ..up in the middle..,this is the only pic i can find with the cones on, , zoom in for a better loookregards Marcus Link to comment Share on other sites More sharing options...
Velocita Rosso Posted August 7, 2009 Share Posted August 7, 2009 We obtained some poly bar , turned `em down ,drilled and screwed in some threaded bar (or bolt, cant remember its that long ago) Link to comment Share on other sites More sharing options...
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