jackri Posted April 29, 2009 Share Posted April 29, 2009 Afternoon folks,No I have a wee problem which I have onlty just been able to identify. It is that on my passenger side, the rotoflex coupling fouls the lower wishbone when on those dippy B roads - and only one up too! When i have a passenger, it grinds like mad. Thought it was a rubbing tyre for years, until last weekend when I saw some rubbing evidence on the metal parts of the N/S rotoflex.Here's the spec:It's a MK2 GT6 with Spit MKIII body.The rear spring is new (replaced that as I thought the old one may be sagging) - that didn't fix it.The shock absorbers have been replaced with spax adjustables, set to firmest - that didn't fix itWire wheels swapped for alloys with lower circumference - that didn't fix itInstalled a 1/2" spacer block from Canley - that didn't fix itCurrently standard bushesI'm now toying with the idea of going down the CV route. (Any of your experiences would be very welcome on this front)Has anyone else experienced this? This is my 3rd rotoflex triumph & I have never experienced it before & it's doing my nut in.Any experiences, advice, ideas etc. etc. welcome.Thanks one & all,Jack Link to comment Share on other sites More sharing options...
Clive Posted April 29, 2009 Share Posted April 29, 2009 I would be checking the position of the bracket where the wishbone attaches to the chassis.Was the chassis a spitfire one modded or a genuine GT6 mk2?TBH I have never come acress this before, the dip in the wishbone gives enough clearance, or should, easily.Any chance of some pics of the area? Link to comment Share on other sites More sharing options...
jackri Posted April 29, 2009 Author Share Posted April 29, 2009 Indeed it is an original, hence why it's got me stumped...I'll get some photos done this w/e when I get a spare half hour - I'll also check out the part number on the spring (still got the paper label from rimmers) to make sure it's not from a spit Mk3 rather than GT6... Link to comment Share on other sites More sharing options...
Tim Bancroft Posted April 29, 2009 Share Posted April 29, 2009 Inside mounting of the wishbone must be too high.CVs will sort this out.However I would get the suspension geometry checked. Link to comment Share on other sites More sharing options...
jackri Posted April 29, 2009 Author Share Posted April 29, 2009 Right you are Tim, I appreciate that it is good practice to have the geometry checked/set each time one fiddles with the set up, but it happens soooo often, that I'd spend all my kidney sale proceeds on geometry - maybe I could invest in one of those 'home kits' - any good?? Link to comment Share on other sites More sharing options...
jackri Posted April 29, 2009 Author Share Posted April 29, 2009 Actually, anyone had any experience of the Canley's adjustable wishbone brackets?? Link to comment Share on other sites More sharing options...
GT6 M Posted April 29, 2009 Share Posted April 29, 2009 Hi Jackri, where is it actually catching!!is it the rubber of the roto,or is it the bolts, as some are longer than the others, and if you,or some one else has put the wrong bolt in the wrong hole , then it will stick oot more and may well catch is the roto in good conditionhave you got the correct roto on, as some ive seen are a slightly bigger od than othershttp://www.missionsupplyonline.com/pdf/rotoflex.pdfcheck this out, it may helpregards Marcus Link to comment Share on other sites More sharing options...
jackri Posted April 29, 2009 Author Share Posted April 29, 2009 Hi Marcus,Thank for the feedback - here goes:The roto is rubbing on the metal fillets in the metallastic unitsBolts are correct as fittedroto is <3k miles old (4 years)Good info about the size - wasn't metallastic as they were in short supply when I needed one.Excellent doc on metallastic - no idea if dimensions are 100% correct - I'll need to check that out at the w/e when i take the wheel off & take some photos.Thanks again,Jack Link to comment Share on other sites More sharing options...
Tim Bancroft Posted April 29, 2009 Share Posted April 29, 2009 This is weird, def not the bolts then? Link to comment Share on other sites More sharing options...
michael Posted April 30, 2009 Share Posted April 30, 2009 jackri wrote:Actually, anyone had any experience of the Canley's adjustable wishbone brackets??bracket has 3 mounting holes for wishbone regards michael Link to comment Share on other sites More sharing options...
jackri Posted April 30, 2009 Author Share Posted April 30, 2009 Def not bolts marcus; it's the edge of the metal fillets.I know the brackets have 3 holes Michael, for adjusting wishbones according to need; just wondered if anyone had had any experience of them - good or bad.Cheers Link to comment Share on other sites More sharing options...
Deleted User Posted April 30, 2009 Share Posted April 30, 2009 Why not several photographs (from various angles) to illustrate the problem you are having.Without having a visual reference, all we can do is guess as to what the problem may be, with dozens of different guesses, whereas on seeing a photo it may be immediately self evident.As for different sizes of rotoflex coupling, yes there are dozens of sizes available, but there is only one that will fit the car - you have to get the correct PCD for the bolt holes, if you dont, then it would not have fitted in the first place, there is no way an incorrect PCD coupling would fit. Link to comment Share on other sites More sharing options...
jackri Posted April 30, 2009 Author Share Posted April 30, 2009 Morning Kevin,As mentioned further up in the thread; I'll have the girl in the air this weekend when the weather is higher too. Will take some images then.Cheers Link to comment Share on other sites More sharing options...
Nick Jones Posted April 30, 2009 Share Posted April 30, 2009 I'd have a small wager that it is hitting the spring not the wishbone. They do that if you have the wrong length dampers fitted, or no bumpstops (vitesse). Don't ask me how I know....Nick Link to comment Share on other sites More sharing options...
jackri Posted April 30, 2009 Author Share Posted April 30, 2009 Hmmm... seeing a pattern here. I'll report back when she's in the airDid you get my email about the CV joints??CheersJack Link to comment Share on other sites More sharing options...
GT6 M Posted April 30, 2009 Share Posted April 30, 2009 You just beat me to that one, but on mine it was the spring locating brackets, the one with the thru bolts which were catching the top of the donutslook for signs of rubbing on therebut if it is on there, or the spring, then it will be making a ..knocking sound.. as the high bits hit, then the low bits missgo look M,Ladregards Marcus Link to comment Share on other sites More sharing options...
jackri Posted April 30, 2009 Author Share Posted April 30, 2009 knocking - understandable if revs are low, but if one is tonking merrily at 60 or so, the knocks meld into a graunch.. Albeit briefAs I say, I will get the old girl in the air this weekend & have a look for some decent witness marks - bound to find something clearly visible I'm sure. Will also check the mounting brackets of wishbone & spring locating doodads Link to comment Share on other sites More sharing options...
thescrapman Posted April 30, 2009 Share Posted April 30, 2009 Rotoflex springs need to have the leaf retaining clamp lower bits bent under rather than have a bolt betwen them, or they catch on the coupling.CheersColin Link to comment Share on other sites More sharing options...
GT6 M Posted April 30, 2009 Share Posted April 30, 2009 think we got it sussed noo, ole boyMarcus Link to comment Share on other sites More sharing options...
Nick Jones Posted April 30, 2009 Share Posted April 30, 2009 jackri wrote: the knocks meld into a graunch.. Albeit briefOh yeah.... a big ugly graunch!Nick Link to comment Share on other sites More sharing options...
jackri Posted May 1, 2009 Author Share Posted May 1, 2009 Right, it's Freeda neet, so I'll pop her up tomorrow, have a tinker, take some snaps & post them up.Everyone above, I really cannot give sufficient appreciation of your collective assistance on this.Cheersp.s. anyone going to HSCC at silverstone next weekend (sat)?? If so, I'll buy you a drink! Link to comment Share on other sites More sharing options...
jackri Posted May 2, 2009 Author Share Posted May 2, 2009 Hi All,EUREKA!!Handbrake return spring lug...Doing my nut in not finding witness marks anywhere, but then I noticed some burring on this bracket, which was shiny anyway, so it's just moved more outboard with a shorter return spring. Bingo!!I'll still go down L'Avenue CV Joint though.Excellent.I'll put some pictures up after I've had a celebratory ale down the tavern... :) Link to comment Share on other sites More sharing options...
jackri Posted May 2, 2009 Author Share Posted May 2, 2009 Hi All,EUREKA!!Handbrake return spring lug...Doing my nut in not finding witness marks anywhere, but then I noticed some burring on this bracket, which was shiny anyway, so it's just moved more outboard with a shorter return spring. Bingo!!I'll still go down L'Avenue CV Joint though.Excellent.I'll put some pictures up after I've had a celebratory ale down the tavern... Link to comment Share on other sites More sharing options...
jackri Posted May 2, 2009 Author Share Posted May 2, 2009 Right, here we go...Pix show:the offending article (now moved 10mm outboard - sorted)top of spring looking inboarddegree of separation of new spring on top VL mount (quite different from the offside - you can stick a finger in the gap!)Shocker - length seems OKInboard wishbone mountArse end inFrom the wheel arch(But necesarily in that order...) Link to comment Share on other sites More sharing options...
jackri Posted May 2, 2009 Author Share Posted May 2, 2009 And finally... Link to comment Share on other sites More sharing options...
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