mk2 172 Acoustic Valve Meant to be Open or closed

[D1CKY]

Yesterday i took off my wheel arch liner to have a squint at the acoustic valve and upon removing the pipe coming out the bottom of it i noticed the flap was in the open position (with engine off).

Is this correct or is my valve faulty ?

As i thought they only opened when they reached a certain rpm and closed at low speeds...


Can anyone help ?


Cheers

 

[len_beach]

I don't think they open until about 1800 rpm. I'd remove it anyway as they do nothing other than supress noise and restrict flow.

 

[Fred@BTM]

they belong in the bin

 

[graham_172]

take it off, you'll notice a change, while your at it, bin one of the horns and the extra bracket for it. small weight saving

 

[Neil G]

they belong in the bin

I'm coming round to your advice fred..I may actually take the arch liner off and take it off to see what the difference is.

Not sure I'll chuck it in the bin though.

 

[graham_172]

take it off

 

[D1CKY]

take it off

I removed it on Monday afternoon after getting a metre of 60mm ducting pipe from local truck/van dealer down the road and the bloody snow started

I also did the Ecu Reset, where when you start car afterwards it sound like a computer starting up..

Unsure if its made any odds though :S

Maybe the throttle is more responsive or maybe i'm just thinking that

Pics.

Acoustic Valve Removed left standard airbox feed from top of it. (Inside Arches need a clean though:dapprove: )

Electrical Connector taped up and brought to engine bay and put inside fusebox and vacuum pipe plugged and tied back out way

Heres the New Air Feed in place

New Feed behind Grill

 

[ado]

they belong in the bin

Does mine belong in the bin aswell?

 

[D1CKY]

yip afraid so

 

[Fred@BTM]

definatley, they should all go in the bin

 

[RichMcc]

Its Renaults own version of the ebay Turbonator!

Propper 172's dont got em, cough I mean ph1's

 

[D1CKY]

Must admit though my acoustic valve looks better on shed floor where it landed when threw it in after i took it off LOL