removing acoustic valve - sealing vacuum hose

[LegoHead]

I dont think the vacuum hose thing to the valve was blocked up when it was removed, will this have any effect on the car?

 

[Maz]

How would I know if mine has been ??

 

[LegoHead]

dont know, I think it is one of the hoses coming out of the plenum, but I'm probably wrong.

I guess it should be sealed as air may be sucked into engine unfiltered?

:S

 

[Maz]

I havn't got a clue if mine was either then would be good to know how to check

 

[S22 JGS]

if it wasnt sealed then ull idle above 1k revs

 

[S22 JGS]

forgot to mention... its easier to pull that tube out and stick a little rubber cover the nipple it connects to.

 

[Maz]

Has anyone got a pic of what should be done or where to check ??

 

[LegoHead]

from what has been said, i am sure it is the rubber hose coming out of the plenum. follow that down and you should find the end.


Where is edde when you need him....?

 

[S22 JGS]

hang on i have some

 

[Maz]

Im not that bright I need pics .. lol

 

[S22 JGS]

This is where the tube goes to:

And this is what i have done (was supplied with the maxogen but any little rubber cap will work):

few more pics here http://www.sjgs.co.uk/gallery/photos.php?album=30
and here http://www.sjgs.co.uk/gallery/photos.php?album=28

 

[Maz]

Hmmm I dont think I have one of those .. where can I get one or something similar please ??

Sorry for taking over your thread Dave ..

 

[S22 JGS]

erm, even somewhere like maplin might have something to fit the bill.
b&q maybe...

stick one of them out and take the tubing out and ure sorted. Looks neater too

 

[perrie]

when i was taking my one out i un pluged mine under the wheel arch is that the right thing to do :star:

 

[LegoHead]

Stick a teeny weeny cork in it.

 

[S22 JGS]

when i was taking my one out i un pluged mine under the wheel arch is that the right thing to do :star:

yeh it unplugs from the acoustic valve. it then runs up with the air feed, round the back of the air box and into the plenum by the throttle body.

You can either just plug it and tape it up down in the wheel arch, making sure u cable tie it to something so it doesnt rattle LOL.... or you can unplug it from the plenum also, and remove it completely, and place a cap over the nipple.

 

[perrie]

when i was taking my one out i un pluged mine under the wheel arch is that the right thing to do :star:

yeh i unplugs from the acoustic valve. but where then runs up with the air feed, round the back of the air box and into the plenum that bit is still on my one should i take that bit off to and plug it

 

[S22 JGS]

yeh i unplugs from the acoustic valve. but where then runs up with the air feed, round the back of the air box and into the plenum that bit is still on my one should i take that bit off to and plug it

Personal choice mate. If you can get hold of a little rubber cap then go for it.. Personally i think it looks much neater with the tube removed.

 

[Maz]

Hmm I think I maybe need mine checked lol

 

[perrie]

cheers for ur help :approve:

 

[S22 JGS]

no worries

 

[LegoHead]

anyone know what happens if this is left open?

 

[Maz]

Would it cause the car to be unresponsive ??

 

[LegoHead]

I think that it down to renault.lol.

Seriously though, I am worried about long term damage due to unfiltered air going through engine.

 

[172cupwizard]

I dont think the vacuum hose thing to the valve was blocked up when it was removed, will this have any effect on the car?

is this just for a induction kit? just wondred why you would remove it. cheers

 

[Maz]

All I know is I have two parts that were removed from my car .. I dont have the viper anymore so no need for the air feed tbh .. do you think it would be best to get it put back in ??

 

[LegoHead]

I dont think the vacuum hose thing to the valve was blocked up when it was removed, will this have any effect on the car?

is this just for a induction kit? just wondred why you would remove it. cheers

the acoustic valve is only open above a certain rev range or something or other. Most people remove them as they argue it cant do any harm, but I am wondering if it could???

I remove my entire air box and all the feeds and this valve for my viper.

 

[makavelli]

i just cut the tube really short and stuck a srew in it job done

 

[Maz]

This has got me worried now .. thanks Dave .. lol

 

[LegoHead]

I'm worried too! Where the fook is edde!

 

[makavelli]

the acoustic valve was only put in because reno have to meet the crappy emmisions laws! its only purpose it to restrict airflow with the butterfly valve by not fully opening at certain speeds

get rid of it it only slows you down

 

[makavelli]

iirc the breather pipe just allows the valve to adjust by analysing the air in the plenium therefore if there is no acoustic valve then the breather is not needed

 

[Maz]

So stick a screw in the hole and its sorted ?? lol

 

[makavelli]

So stick a screw in the hole and its sorted ?? lol

pretty much yeah! all you need to do is plug the hole as its no longer required! when you put the acoustic valve back in eg. for selling, just unplug it and hook up a new pipe to the acoustic valve

 

[Maz]

Cool thanks I will have a look tomorrow ..

Thats me sorted, what about you Dave ?? happy or still worried ?? lol

 

[LegoHead]

worried still, the fact that air is flowing over the internal wall of the plenum will cause the pressure to drop in the hose that is usually attached there, hence the name vacuum hose.

If their is air entering this hole, without being filtered, yep I am still worried.

Even worse still as the hose is left near the wheel and water can get in their, any amount of crap has chance to go up the pipe.

Ah well, s**t happens!

 

[makavelli]

worried still, the fact that air is flowing over the internal wall of the plenum will cause the pressure to drop in the hose that is usually attached there, hence the name vacuum hose.

If their is air entering this hole, without being filtered, yep I am still worried.

Even worse still as the hose is left near the wheel and water can get in their, any amount of crap has chance to go up the pipe.

Ah well, s**t happens!

pull it off and plug the hole dude

 

[LegoHead]

worried still, the fact that air is flowing over the internal wall of the plenum will cause the pressure to drop in the hose that is usually attached there, hence the name vacuum hose.

If their is air entering this hole, without being filtered, yep I am still worried.

Even worse still as the hose is left near the wheel and water can get in their, any amount of crap has chance to go up the pipe.

Ah well, s**t happens!

pull it off and plug the hole dude

yo! Will do.:rasp:


But now I have a whole new dilemma, where can i get a plug in red, to match my colour coding.lol.

 

[en035]

got viper on my Mk1 RS 172 and using the standart inlet elbow, Do I have to plug that hole as well, I thought it needs to be connected to a breather filter or to the hole on the inlet elbow.

 

[Neil G]

I'd be inclined to leave the pipe in situ, put a nail in the end and tape up to stop dirt getting in and then zip tie the thing to the chassis somewhere....It'll look standard then from the outside.

Does anyone know if you can uplug the hosing to the airbox at the valve end and leave it in place by the wheelarch....I don't want to hve to buy more piping.