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alexvanlewen
07-19-2014, 01:16 AM
Hey guys, so I'm looking for some help. So I recently installed my new DV, but I believe I have a leak from my intake manifold. When I'm driving and step on the gas pedal, there is an audible crescendo whistle. When I release the pedal, there is a decrescendo whistle. If I hold the pedal in a middle position, the whistle remains constant. Please help me out!

http://i1283.photobucket.com/albums/a553/alexvanlewen/Mobile%20Uploads/DV-stock_zpsxn1axqwc.png (http://s1283.photobucket.com/user/alexvanlewen/media/Mobile%20Uploads/DV-stock_zpsxn1axqwc.png.html)
So currently the green hose from the intake to the N249 is disconnected. I connected the red hose to the top of my 007.

http://i1283.photobucket.com/albums/a553/alexvanlewen/Mobile%20Uploads/IMAG0118_zps1b1h6pma.jpg (http://s1283.photobucket.com/user/alexvanlewen/media/Mobile%20Uploads/IMAG0118_zps1b1h6pma.jpg.html)
This is the hose shown here.

http://i1283.photobucket.com/albums/a553/alexvanlewen/Mobile%20Uploads/IMAG0119_zpsedgd7stl.jpg (http://s1283.photobucket.com/user/alexvanlewen/media/Mobile%20Uploads/IMAG0119_zpsedgd7stl.jpg.html)
This is how I have my DV hooked up.

Davdraco1
07-19-2014, 05:25 AM
Is you DV backwards? I just replaces mine yesterday and I think I did mine the other way.

gatorfan626
07-19-2014, 07:13 AM
Why is the green hose dosconnected? That seems like problem. Either connect the line from the manifold to the N249 or bypass the N249 all together. With the way it is set up now, your DV should never open.

alexvanlewen
07-19-2014, 10:06 AM
Is you DV backwards? I just replaces mine yesterday and I think I did mine the other way.

Look at the pic, I think its right. Horizontal arm pushed into the hose, vertical arm pushed into the turbo inlet pipe.

For some reason, the green hose isn't going over the connector to the N249, as if the hose is too small. Should I just jam the connector (its a little right angled tube) and clamp it on?

demonmk2
07-19-2014, 10:33 AM
Do yo have that thing mounted on the tip?
Or is that pic deceiving?

alexvanlewen
07-19-2014, 11:14 AM
It is completely in the tip connector.

fed0ra
07-19-2014, 11:22 AM
Holy shit, why? You replaced the freaking prv with a diverted valve...

Put the prv back in the tip. The DV is in the intercooler hose coming off of the turbo compressor outlet not inlet. If you get under your car on the passenger side you'll see it.

Basically it looks like you have your DV connected to the PCV system, so you are fucking up your car. Stop driving it, figure out where things actually go and make sure you clean the DV because it's probably full of oil.

Wow...

BaseDrifter
07-19-2014, 12:04 PM
Hahaha, that's rich! Never seen that before.

Yeah…you put the DV in the completely wrong spot. Follow what fedora said.

gatorfan626
07-19-2014, 12:08 PM
Do yo have that thing mounted on the tip?
Or is that pic deceiving?

Funniest thing I have ever read on this site..

russianaudilove
07-19-2014, 12:15 PM
Hahaha, I can see where he would think it would go there because the 007 diverts the air back to the inlet, haha too funny man.
But seriously please read and learn all the diagrams of the car and learn how it all works together

gatorfan626
07-19-2014, 12:24 PM
I still haven't figured out why he has the Manifold > N249 line disconnected. What is the point of that? Wouldn't that just cause the DV not to open..?

alexvanlewen
07-19-2014, 01:42 PM
I still haven't figured out why he has the Manifold > N249 line disconnected. What is the point of that? Wouldn't that just cause the DV not to open..?

My dv still works some how. I reconnected the red line to my dv but still cannot get the green line connected. Putting the parts in the right place as we speak

Turbo_B5
07-19-2014, 02:03 PM
Hahaha. This is some funny shit right here.

gatorfan626
07-19-2014, 03:58 PM
My dv still works some how. I reconnected the red line to my dv but still cannot get the green line connected. Putting the parts in the right place as we speak
For reference, the red line goes from the vacuum nipple on the DV to the N249. Green goes from vacuum nipple on the front of the intake manifold to the N249. With the green hose disconnected, I would think that you would never get vacuum to your DV, so it would never open. I could be wrong though.

alexvanlewen
07-20-2014, 11:01 AM
6;9934302]For reference, the red line goes from the vacuum nipple on the DV to the N249. Green goes from vacuum nipple on the front of the intake manifold to the N249. With the green hose disconnected, I would think that you would never get vacuum to your DV, so it would never open. I could be wrong though.[/QUOTE]

Kinda. So the whistling I mentioned was from the DV vacuum nipple not being connected, which has me thinking.
So I think without having my IM connected to my N249, there is no vacuum to close the DV, which could mean that it is flowing backwards. Because if there is not enough pressure going into the nipple to keep i closed during boost, it must slightly open causing that whistle. What do you guys think?

OverSpun
07-20-2014, 12:17 PM
OP,

You now have 2 diverter valves.

Lift up your car, take off the belly pan, you will see the other diverter valve that is connected to the outlet hose from the turbo. You must have followed the instructions for older B5s who have a different DV location.

Pre-99.5 Diverter valve:

Looks like what you removed but you don't have a pre-99.5
http://img32.photobucket.com/albums/v97/dolan13/BPV%20Change/bpvchange_010.jpg

Here's the correct location

http://i232.photobucket.com/albums/ee273/noti88/DV%20710N%20Install/12ec3aad.jpg

I have my 007P installed in the standard/normal way.

demonmk2
07-20-2014, 12:21 PM
You did move the DV right?

Seerlah
07-20-2014, 12:28 PM
In for the [>_<]

It's ok OP. We all did something dumb at one time or another to our vehicle. Some just won't admit it.

alexvanlewen
07-20-2014, 09:47 PM
You did move the DV right?

Well duh haha will someone please respond to my last post? xD

russianaudilove
07-21-2014, 01:19 PM
Well duh haha will someone please respond to my last post? xD

What I did with mine was I bypass the n249 avoided the problems all together, basically after you connect the dv properly, connect the vaccum line straight to the mani. You will have better response on your dv and will have less problems. I'll find the reference pic and show you in a sec

russianaudilove
07-21-2014, 01:22 PM
http://i19.photobucket.com/albums/b154/walky_talky20/DV-stock.png
This is what you have now

And this is what it is with the bypass
http://i19.photobucket.com/albums/b154/walky_talky20/DV-direct.png
All credit goes to walky_talky20

russianaudilove
07-21-2014, 01:25 PM
http://www.audizine.com/forum/showthread.php/442614-*DIY*-B5-1-8T-Vacuum-Check-Valve-SAI-PCV-Delete-amp-Simplification

Go here for the thread, its really helpful for those who wanna get rid of leaks or simplify the pcv system. I did all of it and my car runs wayyyy better and got rid of all the vacuum leaks

MetalMan
07-21-2014, 02:12 PM
What I did with mine was I bypass the n249 avoided the problems all together, basically after you connect the dv properly, connect the vaccum line straight to the mani. You will have better response on your dv and will have less problems. I'll find the reference pic and show you in a sec

Have you actually verified "better response on your dv"? How do you quantify that? Typically while driving around you can't even feel a difference in performance between N249/no N249.
Here's another recent thread on the subject:
http://www.audizine.com/forum/showthread.php/605776-N249-bypass-Pros-and-cons

I don't want to turn this thread into that one, but generally speaking the only "benefit" to eliminating the N249 is a simplification of vacuum hoses.

OverSpun
07-21-2014, 02:52 PM
Well duh haha will someone please respond to my last post? xD

I basically answered your last post.

1. You should not see your DV with your hood open (Unless you have an S4) and especially where it is since you replaced your pancake valve for a DV.

2. Jack up you car, remove the belly pan and follow the diagram that I posted and you'll find your "other" Diverter valve that you are still using. The car only needs 1 diverter valve unless you have an S4.

Notice the Pancake valve that you removed? These pics are from my car.
http://img.photobucket.com/albums/v119/OverSpun/Avant/IMG_6557_zpsac25ca4e.jpg (http://smg.photobucket.com/user/OverSpun/media/Avant/IMG_6557_zpsac25ca4e.jpg.html)


Under the car, you replace this:
http://img.photobucket.com/albums/v119/OverSpun/Avant/IMG_6638_zps5900658f.jpg (http://smg.photobucket.com/user/OverSpun/media/Avant/IMG_6638_zps5900658f.jpg.html)

Install Forge DV-
http://img.photobucket.com/albums/v119/OverSpun/Avant/IMG_6563_zps8df954a5.jpg (http://smg.photobucket.com/user/OverSpun/media/Avant/IMG_6563_zps8df954a5.jpg.html)

alexvanlewen
07-21-2014, 08:38 PM
Have you actually verified "better response on your dv"? How do you quantify that? Typically while driving around you can't even feel a difference in performance between N249/no N249.
Here's another recent thread on the subject:
http://www.audizine.com/forum/showthread.php/605776-N249-bypass-Pros-and-cons

I don't want to turn this thread into that one, but generally speaking the only "benefit" to eliminating the N249 is a simplification of vacuum hoses.

Good question, I mean how would you measure that?

alexvanlewen
07-21-2014, 09:00 PM
Here's the correct location

http://i232.photobucket.com/albums/ee273/noti88/DV%20710N%20Install/12ec3aad.jpg

I have my 007P installed in the standard/normal way.

What would be the incentive to connecting it backwards?

OverSpun
07-21-2014, 09:54 PM
What would be the incentive to connecting it backwards?

IMHO, not any incentive (according to the 710N in that picture... reversed 710N would probably fail cause it has a diaphragm vs. the Forge DV.

Anyway- Any OG would remember "The Great Diverter Valve Face-Off" The site has been offline for ~10 years or so... http://web.archive.org/web/20030620181358/http://dv.mistertam.com/ Take a look.

You can run a Forge DV standard or reverse. I have done both on my past cars. It's your prerogative but I am personally running my 007PA run standard/normal like the factory valve. Forge actually recommends it to be installed like the factory valve.

A reversed valve is more pronounced a bit like a blow off valve, especially if you have cone filter.

alexvanlewen
07-23-2014, 07:10 AM
IMHO, not any incentive (according to the 710N in that picture... reversed 710N would probably fail cause it has a diaphragm vs. the Forge DV.

Anyway- Any OG would remember "The Great Diverter Valve Face-Off" The site has been offline for ~10 years or so... http://web.archive.org/web/20030620181358/http://dv.mistertam.com/ Take a look.

You can run a Forge DV standard or reverse. I have done both on my past cars. It's your prerogative but I am personally running my 007PA run standard/normal like the factory valve. Forge actually recommends it to be installed like the factory valve.

A reversed valve is more pronounced a bit like a blow off valve, especially if you have cone filter.

Hmm so it's basically just louder? I have a K&N and have no interest in a CAI so I'm probably just doing things by the book.

fed0ra
07-23-2014, 08:00 AM
IMHO, not any incentive (according to the 710N in that picture... reversed 710N would probably fail cause it has a diaphragm vs. the Forge DV.

Anyway- Any OG would remember "The Great Diverter Valve Face-Off" The site has been offline for ~10 years or so... http://web.archive.org/web/20030620181358/http://dv.mistertam.com/ Take a look.

You can run a Forge DV standard or reverse. I have done both on my past cars. It's your prerogative but I am personally running my 007PA run standard/normal like the factory valve. Forge actually recommends it to be installed like the factory valve.

A reversed valve is more pronounced a bit like a blow off valve, especially if you have cone filter.


Hmm so it's basically just louder? I have a K&N and have no interest in a CAI so I'm probably just doing things by the book.

This is what "Mad Max" (Marcus_Aurelius on VWVortex) had to say about the topic of the push vs pull DV positions (push meaning the vacuum nipple is perpendicular to the intercooler hose, pull being the standard position):

"Having the charge pressure coming at the bottom inlet (pushing straight up against the piston AKA push style/orientation) is the better way to run these valves. The "pull orientation" where the pressure is coming on the side outlet and perpendicular to the piston's motion is not recommended. Yes, it may force a total seal for valve that struggle to not leak air when oriented properly, but it's a potential hazard to turbo operation. When oriented this way (to mask a lack of sealing ability), you're only relying on vacuum to operate the valve. One might think, well what's wrong with that? The answer is what if you develop a vacuum leak, or worse were to loose your pressure reference to the valve? You could destroy your turbo in quick order. When properly running in push style, even without vacuum, the valve is still functional as a pop-off valve (they were popular in the early days of turbocharging and don't use pressure/vacuum reference). With this function/failsafe safety still in place, once the charge pressure in the system exceed the internal spring rate, the valve pops open and still protects the turbo (hence the old term pop-off valve)."

I trust the guy's opinions on matters of turbocharging and he recommended I run his valve in the push position. The thread he posted that in was about Forge valves but I've never heard of a DV not being able to run in either orientation or that the push orientation would lead to failure of a diaphragm-style DV. I'm running a 710N in the push orientation, I ran my R1 in both, I ran the Forge in both and I ran (and will run) my evo/MadMax DV in push orientation. All but one of those is a diaphragm-style DV and none of them failed.

walky_talky20
07-23-2014, 08:11 AM
OP: I seriously lol'd at "decrescendo". I may have to use that in the future.

Props to AZ members for keeping this thread reasonably civilized and not flaming the poor OP to death.

And thanks for the credit, russianaudilove. Prish-e-ate it.

OverSpun
07-24-2014, 12:16 AM
Hmm so it's basically just louder? I have a K&N and have no interest in a CAI so I'm probably just doing things by the book.

Yessir, It is certainly louder or more noticeable. I am also personally using a K&N filter in the factory airbox. I also do things by the book. :)


OP: I seriously lol'd at "decrescendo". I may have to use that in the future.

Props to AZ members for keeping this thread reasonably civilized and not flaming the poor OP to death.

And thanks for the credit, russianaudilove. Prish-e-ate it.

x2 @ decrescendo. Best symptom description that I've ever heard. [:p].

alexvanlewen
07-24-2014, 04:38 PM
x2 @ decrescendo. Best symptom description that I've ever heard. [:p].

Yup that's what you get when a musician diagnoses one of a cars various sounds. xD I run the K&N as well, I love it.