Chris Wilson Posted June 2, 2006 Share Posted June 2, 2006 If you really get bugged by it you could try a heavier weight oil in the gearbox. Quote Link to comment Share on other sites More sharing options...
LeeT Posted June 3, 2006 Share Posted June 3, 2006 No, it's a dual plate one. I didn't notice any excessive rattling on yours mate. I'd be very happy if mine sounded like yours. My idle is already around 1000rpm though. i think my idle is actually at 1100 rpm. May be worth giving it a try before you start replacing parts. i know youve got one of those complicated ECU´s but you should still be able to alter it by adjusting the throttle stop screw Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 3, 2006 Share Posted June 3, 2006 Mine rattles too, it is irritating as you have this lurvely car that people look at and then you start it up and it sounds like somethings gonna drop off ! Then you stick your foot on the clutch and the clutch makes it's noises too Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted June 3, 2006 Share Posted June 3, 2006 Mine rattles too, it is irritating as you have this lurvely car that people look at and then you start it up and it sounds like somethings gonna drop off ! Then you stick your foot on the clutch and the clutch makes it's noises too How you getting on with your clutch Matt? Gaz. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 3, 2006 Share Posted June 3, 2006 Mine rattles too, it is irritating as you have this lurvely car that people look at and then you start it up and it sounds like somethings gonna drop off ! Then you stick your foot on the clutch and the clutch makes it's noises too To a car savvy onlooker these noises will bring a nod of appreciation Quote Link to comment Share on other sites More sharing options...
Muffleman Posted June 3, 2006 Share Posted June 3, 2006 How you getting on with your clutch Matt? Gaz. Getting used to it mate, so I'm gonna keep it. It'd be no good as a daily driver, but this car only comes out on sunny days To a car savvy onlooker these noises will bring a nod of appreciation You're right, but they're a rare breed Quote Link to comment Share on other sites More sharing options...
Kranz Posted June 3, 2006 Share Posted June 3, 2006 It's not the flywheel per se that rattles, it's the gearbox. The stock dual mass damps out gearbox harmonics, but weighs a ton. All aftermarket, none dual mass ones "cause" gearbox and geartrain noise. As the esteemed CW says, the standard dual mass flywheel is tuned to take all vibrations out of the crankshaft to gearbox power transfer path. Inside the dual mass is a damping medium (usually silicone fluid) that seperates the two pieces of the flywheel. This allows limited 'slip' between the two parts of the flywheel before the end stops are reached, normally around +/- 20 degrees movement. Without this the torsional vibrations in the crank are transmitted through to the gearbox, which hasn't been designed to use a solid flywheel. This sets up chattering in the gear set under no load. There will be an rpm where this is not seen, probably a higher rpm than std idle where more power is required to spin the gears in neutral (the drag of the spinning gears & pumping the oil around). Combine this with a heavier weight gear oil (the heavier the oil, the lower the rpm where the chattering stops) and with some experimenting it should be easily got rid of. Quote Link to comment Share on other sites More sharing options...
ndwgolf Posted June 3, 2006 Share Posted June 3, 2006 If the noise is bugging you that bad, then just switch the engine off when waiting at the lights, especially considering the cost of fuel these days or just crank up the stereo???????????????????? Quote Link to comment Share on other sites More sharing options...
jason m Posted June 3, 2006 Share Posted June 3, 2006 Can the damped oe flywheel be lightened as any kind of compromise? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 3, 2006 Share Posted June 3, 2006 To all reasonable intents and purposes, no. Quote Link to comment Share on other sites More sharing options...
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