damping suspension noise

406 V6 · Post by **406 V6** » 25 Nov 2004, 21:21

Hello!
Is there any way or has been tryed to used some sort of isolation material to isolate the road/suspension noise coming from the hydraulics. Maybe some grommets and foam around the piping..?
Thanks guys!

Kowalski · Post by **Kowalski** » 25 Nov 2004, 21:37

I don't really get much in the way of road/suspension noise from my hydraulics, all of the pipes are clipped away from the chassis.
If you've getting noise, I'd check that you don't have a pipe out of place and touching something it shouldn't. One of my flexible brake hoses was loose in the wheelarch and made noise / wore a clean patch of the inner wing.

AndersDK · Post by **AndersDK** » 25 Nov 2004, 21:37

If you have any rattling/clonking from the suspension, I'd say you better take a closer look.
Good idea anyway as any piping that rattles around will leave traces on nearby bodywork.
It's wellknown that spraying the wheelarches with some thick & sticky (antirust) coating takes quite some road noise. Padding fom inside the cabin takes the rest ...

406 V6 · Post by **406 V6** » 26 Nov 2004, 01:33

I asked this as usually, on Citroëns, due to the hydraulics, road noise is more easily transmited to the body, making a noisier than sprung cars cabin. I don't refer to any knocking or clunking noise, really.
Thank you!

dnsey · Post by **dnsey** » 26 Nov 2004, 02:48

I agree that quite a lot of road / tyre noise can be transmitted.
My BXs were quite noisy, and the Xantia isn't much better, although a lot of the engine, gearbox and wind noise has been insulated out. I'd also be interested if anyone has found a way to improve things (other than running particular tyres - there's a lot of difference in road noise even between similar designs).