Acoustic valve help please

[Wirral 182]

Hi guys & gals. I just removed the acoustic valve from the 182, and also removed the small pipe which linked it to the engine, opposite the throttle body. Should I have left this pipe connected?, or does it not make any difference?

I ask only because when I started the motor, I covered the little valve where the pipe was connected for a few seconds and it felt like it was sucking in air. Also when putting a finger over the valve for a few secs, the engine dies.

Any info greatly appreciated. Thanks

http://i64.photobucket.com/albums/h186/Wirral182/acousticfitting3.jpg?t=1181079309
http://i64.photobucket.com/albums/h186/Wirral182/acousticfitting2.jpg?t=1181079832
http://i64.photobucket.com/albums/h186/Wirral182/acousticfitting1.jpg?t=1181079855

 

[RichMcc]

Block the hole up with a bit of pipe with a screw in the end or it will suck too much air into the plenum and probably idle high

 

[Fred@BTM]

yep that MUST be blocked up!

 

[Jay Payne]

^ wot they said

 

[RichMcc]

Ive seen a little black nipple to cover it on some clio's but no idea where they come from...

 

[Wirral 182]

Thanks for the info guys, much appreciated.

What is this valve trying to suck in? Air?

With this pipe blocked, should the engine idle normally? As when I blocked it off briefly with my finger it felt like it wanted to cut out. Thanks again

 

[Fred@BTM]

with it unblocked the engine won't idle properly!

 

[Wirral 182]

with it unblocked the engine won't idle properly!

Aha, brilliant, thanks Fred.

 

[RichMcc]

Look on the bright side you just got a free Eco-Tek Valve

 

[munk]

Ooooh! a free ecotect valve... wouldn't have one at that price lol. Just a quick question- feel free to call me stupid if you feel like it... is the acoustic valve exclusive to 182's and the sportier versions? Or is it on every clio?

 

[RichMcc]

172/182 only I believe

 

[Rob Clark]

dont think the 172 ph1 had em either (lucky for them)

 

[MRBILLYUK]

dont think the 172 ph1 had em either (lucky for them)

Did they not fit em to the ph2 172 and 182's to slow em down a bit ?? Thats what i heard anyway

 

[7MAT]

Ive seen a little black nipple to cover it on some clio's but no idea where they come from...

The black nipple comes with the ITG Maxogen kit.

 

[Da]

ok, what does an acoustic valve do? :S

 

[Rob Clark]

close at low revs to 'aid' swedish drive by noise regulations, opened at higher revs - effectively limiting the air intake (not to mention induction niose ) ph1 172 dont have it, later ones do but many have removed it (inc me) for marginal performance gains and to make it pleasing on the ears !

 

[Rob_02cup]

Ive seen a little black nipple to cover it on some clio's but no idea where they come from...

I could be wrong but ask for a renault kangoo diesel injector blanking plug(1.9 non turbo diesel if their being picky).

One on my kangoo split the day before i sold it and got one from my local motor factors for 50p. Its made of rubber and looks to be the same size and just pushed on.

Hope that helps.