Kevin.payne.15 Posted August 17, 2015 Report Share Posted August 17, 2015 Hi. I've just fitted a new swing spring onto the GT6 mk 3 and have significant positive camber. Hard to guess how much but must be a 3 to 5 deg per side Makes going round corners somewhat interesting and improves fuel economy cos I'm scared to drive the car round corners now Any suggestions how to resolve Kevin Link to comment Share on other sites More sharing options...
Clive Posted August 17, 2015 Report Share Posted August 17, 2015 Did you tighten all the bolts up when the car was on the ground? at least the ones that go through bushes? If that was correct, then the next thing is to get something heavy in the boot, think 100kg. Drive round a bit, over a few gentle speed humps etc. If that fails, you can use a spring lowering block. Don't forget to check the rear wheel toe in. Anything out there will make the car horrible to drive. Link to comment Share on other sites More sharing options...
Kevin.payne.15 Posted August 18, 2015 Author Report Share Posted August 18, 2015 Nope. Tightened everything whilst in the air. I could understamd how the weight plan could lower the car but the geometry of the set up suggests that as the spring softens then the positive camber will get worse? Kevin Link to comment Share on other sites More sharing options...
Clive Posted August 18, 2015 Report Share Posted August 18, 2015 No, as it softens the camber goes more negative. I would get the car up on ramps at the back, loosen the bolts off, and retighten. Ideally with weight in the back. This is important as the rubber bushes will be adding tension to the spring. Also assume you checked the lower trunnions were not seized? that can cause problems. Just checking what you mean by positive camber. You do mean wheels doing this \----/ not /----\ Link to comment Share on other sites More sharing options...
PeterH Posted August 18, 2015 Report Share Posted August 18, 2015 There are some ideas on this in a earlier post http://forum.tssc.org.uk/index.php?/topic/566-rear-wheel-tracking/?hl=%2Brear+%2Bwheel Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 18, 2015 Report Share Posted August 18, 2015 and a thought, if as Clive asks , \--/ you may have the wrong length spring from a 1500 with long shafts or if its /--\ its too weak for the weight of the gt6 having been through some nightmares on my vitesse6 with a swinger I have an avid hate of the things now., fine on a spit..nice and light Pete Link to comment Share on other sites More sharing options...
Clive Posted August 18, 2015 Report Share Posted August 18, 2015 Late gt6 should have long shafts, but the springs never changed length or strength as far as I can make out, may be different now with repro springs? Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 18, 2015 Report Share Posted August 18, 2015 canley sell kits to suit the model, but that may be just the smaller add on's for brake pipe, brackets etc we had a vitesse kit and /--\ ended up at over 10deg , guess youre quite right never studied it much other than keep taking the pills till it got removed . Link to comment Share on other sites More sharing options...
Kevin.payne.15 Posted August 18, 2015 Author Report Share Posted August 18, 2015 Yes it's definitely \----/ that I'm suffering from. I'll try and loosen bolts when on the ground and re tighten. Ride height is now an inch higher than the old one and much much stiffer spring but at least it's more level than it was It's a swing spring as well fro clarity. I'm concerned that I just have a rubbish retro one. I'll try driving with a weight in the back but sooner or later im going to have to go round a corner ! Kevin Link to comment Share on other sites More sharing options...
dougbgt6 Posted August 18, 2015 Report Share Posted August 18, 2015 Did this job 30 years ago, tighten it on the ground. Swing springs are superior to all that roto-flex nonsense! Link to comment Share on other sites More sharing options...
Clive Posted August 18, 2015 Report Share Posted August 18, 2015 My old herald estate sat high with a new spring. Right up until I loaded it up with a rather large quantity of floor tiles (probably 250+kg) and drove home which included a number of "easy" speed humps. That got it nice and level. If it remains high, as I said earlier a spring lowering block can be used. Very simple and effective. As to swing spring V roto, it is trcky, but I am afraid ultimately roto wins on the basis it has MUCH reduced camber change. However, swing is rather simpler and lighter, but my current car is roto and the roadholding when pressing on id rather better than my old swing spring car. Both well maintained (and driven with absolutely no mercy shown) Link to comment Share on other sites More sharing options...
Kevin.payne.15 Posted August 20, 2015 Author Report Share Posted August 20, 2015 Is there any point in replacing the lower trunions before I try loosening and redoing the upper bolts. I suspect the new spring is rather stiffer than the old since the leaves were thicker sections Kevin Link to comment Share on other sites More sharing options...
Clive Posted August 21, 2015 Report Share Posted August 21, 2015 It depends on if they are seized or worn. And you can only check that with the spring disconnected..... So it may be worth getting a set in, plus new bolts(!) and do it anyway. Even if they are difficult, it shouldn't be a huge job. And if they are fine, keep the kits for a year or 2 down the line. One thing, I don't see how the leaves (except the bottom one) can be thicker, otherwise they will not fit in the spring box? Link to comment Share on other sites More sharing options...
Kevin.payne.15 Posted August 21, 2015 Author Report Share Posted August 21, 2015 Hi. Thicker not wider. Ie top to bottom thickness appeared to be more but that could be just because they were new and more curved Link to comment Share on other sites More sharing options...
dogsbody47uk Posted October 14, 2015 Report Share Posted October 14, 2015 A bit late in the day, but I have a swing spring setup on my 13/60 saloon. Thicker front roll bar from Rimmer, secondhand spring box from Spitfire Graveyard, new GT6 spring from Fitchetts. Relatively east to do, gives very slight negative camber on rear wheels, and much improves handling. The spring has less leaves than the original but each leaf is much thicker. Dave. Link to comment Share on other sites More sharing options...
mishmosh Posted October 14, 2015 Report Share Posted October 14, 2015 Is the handling noticeably better. Link to comment Share on other sites More sharing options...
dogsbody47uk Posted October 15, 2015 Report Share Posted October 15, 2015 Yes. Feels much more stable. Link to comment Share on other sites More sharing options...
Clive Posted October 15, 2015 Report Share Posted October 15, 2015 Something else to think about.... If the ride height has changed, then the rear toe in/out will change too. This can have an horrific affect on the way the car drives. Worth checking and adjusting (2 bricks, 2 straight edges, I use 1m lengths of 5mm thick steel bar which I acquired a while ago, and a tape measure plus assiatant. That is all to get an accurate measurement) Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 16, 2015 Report Share Posted October 16, 2015 youre posh two bricks !!!! ha Pete Link to comment Share on other sites More sharing options...
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