Support Team c7trp Posted April 8, 2007 Support Team Share Posted April 8, 2007 Have a mysterous noise from my De-dion 7. Getting a loud 'rattle' - like a long metal bar hitting somthing. The noise occurs mostly when cornering, but also when pulling away in too-higher gear. Its like somthing is resonating. Can do it at parking speeds, but not allways. I've checked the bushes at the rear. All seem fine, only very slight play in the a-frame bushes. New rear shockers and trailing arms. Front end recently lubricated and wouldn't seem to be the cause as the noise appears to come from towards the rear of the car. You can't feel the rattle through the transmission, steering or your bum! Any thoughts? Link to comment Share on other sites More sharing options...
Myles Posted April 8, 2007 Share Posted April 8, 2007 Do you have a rear ARB???? Took me a while to pin-down one particular noise to the ARB. Mine is a s/h Freestyle and the ali clamps have worn. 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester Racing 7s Equipe™ 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Support Team c7trp Posted April 8, 2007 Author Support Team Share Posted April 8, 2007 Nope - no rear ARB - standard suspension with trailing arms rather than watts-linkage. Car is 2003 Roadsport with 40k miles. Link to comment Share on other sites More sharing options...
Myles Posted April 8, 2007 Share Posted April 8, 2007 Is the sound biased towards one direction of cornering? 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester Racing 7s Equipe™ 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Myles Posted April 8, 2007 Share Posted April 8, 2007 I fondly-remember an episode of early (1985) mountain-bike ownership. Had a rattle - couldn't pin it down. Rode down the road at the back of my parents house, staring at the rear-mech. Just couldn't figure it out. BANG! I'd ridden into the bonnet of a parked transit van... Slight damage to the bike. Later worked out that it was the keys in my pocket that were causing the rattle... - but quite possibly relevant... > 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester Racing 7s Equipe™ 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Molecular--Bob Posted April 9, 2007 Share Posted April 9, 2007 Two thoughts 1. I have a broken popper on my boot cover that makes a sound that could convince you that something very large was about to fall off the car at certain speeds. 2. If you have replaced the trailing arms check them for scuffmarks around the brake calipers, clearances are pretty tight. Link to comment Share on other sites More sharing options...
Support Team c7trp Posted April 9, 2007 Author Support Team Share Posted April 9, 2007 Can't see any contact marks on the rear suspension. The 'size' of the noise sounds like a big bit of kit - de-dion tube, rear gearbox mounting or something like that. I've taken everything out of the boot, and strapped the spare wheel on to the carrier. The noise only occurs when steering, suggesting something is moving at the back? Myles - snap - I hit a parked landrover head on whilst trying to find a rattle on my push bike 😳 Landrover fine, pride dented, knackered front wheel ol' days mode> Link to comment Share on other sites More sharing options...
CageyH Posted April 9, 2007 Share Posted April 9, 2007 Check the de dion isn't cracked before you use it again.... It is unlikely to be, but you don't want it to fail while you are blatting. Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
CageyH Posted April 9, 2007 Share Posted April 9, 2007 Sounds diff related to me. Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
Support Team c7trp Posted April 9, 2007 Author Support Team Share Posted April 9, 2007 Cheers all, Quick blat this AM suggests the noise is worse 😳 But then that could just be me worrying about it more.... Time to jack it up and take another look Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted April 9, 2007 Share Posted April 9, 2007 I too rode off the road, hit a tree root and broke my collar bone (only a couple of years ago) while watching new (push bike) gears and chain in action to make sure they were ok. Not to be recommended at 22mph. Helmet saved my skull (and possibly life) as it was seriously stoved in ! ****************** And you run and you run to catch up with the sun, but it's sinking... And racing around to come up behind you again. photos Link to comment Share on other sites More sharing options...
millsn Posted April 9, 2007 Share Posted April 9, 2007 COnsider the rear brake lines rattling against the dedion, your handbrake cable against the A frame and your fuel tank full stop which can resonate. Also your fuel lines could flap against the chassis. Link to comment Share on other sites More sharing options...
metal mickey Posted April 9, 2007 Share Posted April 9, 2007 Check the diff - has it got oil in 🤔 Link to comment Share on other sites More sharing options...
Pete Posted April 9, 2007 Share Posted April 9, 2007 A frame bushes? They don't last long........ Link to comment Share on other sites More sharing options...
Mathew Rimmer Posted April 9, 2007 Share Posted April 9, 2007 Slight hijack - how do you know when the A frame bushes are knackered ? Mine were pronounced fine last year but the car has done 30k hard miles and they are original. thanks Link to comment Share on other sites More sharing options...
Support Team c7trp Posted April 9, 2007 Author Support Team Share Posted April 9, 2007 FIXED IT! After driving around with various bits removed (spare, bonnet, boot floor, etc) I traced it to the FRONT near side lower ball joint binding 😳 1 Squirt with WD40 and all is gone, and the steering is much lighter too! The ball joint feels OK, it was just full of crap and binding. Also found handbrake cable was vibrating on the top of the diff ( millsn) - so fixed two noises in one Thanks for all your help and apologies for misleading you all with my crap description of the problem Edited by - Tim Pollard on 9 Apr 2007 20:05:52 Link to comment Share on other sites More sharing options...
jason liddell Posted April 11, 2007 Share Posted April 11, 2007 I fondly-remember an episode of early (1985) mountain-bike ownership. Had a rattle - couldn't pin it down. Rode down the road at the back of my parents house, staring at the rear-mech. Just couldn't figure it out. BANG! I'd ridden into the bonnet of a parked transit van... Slight damage to the bike. Later worked out that it was the keys in my pocket that were causing the rattle... - but quite possibly relevant...wink smiley> LOL 😬 The exact thing happened to me donkeys years ago on my road bike. Ended up over the bonnet of a neighbour's Sierra 😳 Link to comment Share on other sites More sharing options...
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