The secret REVEALED...why our valve covers leak

2.7tDallas REFORMED · 03-25-2004, 04:12 PM

I stop by the dealer today, and see a 2.7t in the air to replace a rear main seal (stay with me here)

I joke that they might as well do the cam/valve cover gaskets while they are at it.

"no need for that" says the tech "we know why they leak"

"The breather pump valve that sits under the Y-Pipe gets clogged, which increases the crankase breather pressure to the point that it blows out the seals.

"No $hit" I say..

yup - we are starting to check them on every older car....

So - who volenteers to pull this little beauty out and see if it is cloggen on thier older car??
Might save you big $$$!!

OPTIMUS PRlME · 03-25-2004, 04:15 PM

Mitch S6 Avant · 03-25-2004, 04:43 PM

carbonLORD · 03-25-2004, 04:43 PM

Now, how do we do it?

airmax617 · 03-25-2004, 04:55 PM

OPTIMUS PRlME · 03-25-2004, 04:57 PM

cases, a little bit of smoke as well

Fairfax 2.7T · 03-25-2004, 04:58 PM

My cam seals and valve cover gaskets were replaced under warranty at around 10,000 miles. To my knowledge, the breather valve was never replaced.

I now have about 28,000 miles on the car and no oil leaks. If the breather valve was bad and caused my oil leak, than the seals and gaskets would have blown out again.

Maybe you are right in many instances. However, I'd bet that for me, there was a different reason for the seal/gasket failure. I'm sure that there is something more going on (like the seals or other component) are badly designed.

OPTIMUS PRlME · 03-25-2004, 04:59 PM

http://forums.audiworld.com/s4/msgs/1591388.phtml

.

JAH1 · 03-25-2004, 05:08 PM

...on that cross post there is a bentley diagram that explodes the parts and numbers them. where is the y thing? also, every time i see one of your posts i check out the quiznos ad and LOL. what is wrong with me?

joe 99 a6 wagon w/ 52K miles.

OPTIMUS PRlME · 03-25-2004, 05:18 PM

pump... so i'm just as lost as you are.

03-25-2004, 04:12 PM	#1
2.7tDallas REFORMED Junior Member Account #: 71945 Join Date: Mar 2004 Posts: 1,515	The secret REVEALED...why our valve covers leak I stop by the dealer today, and see a 2.7t in the air to replace a rear main seal (stay with me here) I joke that they might as well do the cam/valve cover gaskets while they are at it. "no need for that" says the tech "we know why they leak" "The breather pump valve that sits under the Y-Pipe gets clogged, which increases the crankase breather pressure to the point that it blows out the seals. "No $hit" I say.. yup - we are starting to check them on every older car.... So - who volenteers to pull this little beauty out and see if it is cloggen on thier older car?? Might save you big $$$!!

03-25-2004, 04:15 PM	#2
OPTIMUS PRlME Member Account #: 67363 Join Date: Dec 2003 Posts: 3,631	Holy BATMAN! no kidding!! I'll pull mine out.. how do ya do it!!!

03-25-2004, 04:43 PM	#3
Mitch S6 Avant Junior Member Account #: 70048 Join Date: Feb 2004 Posts: 1,356	damn, that's huge! All that expense for a small cheap part! Nice find :) __________________ BBS LM's 19"x8.5" -SOLD 255/30/19 SportMaxx Tires still FOR SALE less than 4kmi asking $850 OBO e-mail: mitchell.phillipi@comcast.net '02 S6 w/H&R coils, BBS LM's and 255/30/19" Dunlop SP Sport Maxx BBS LM's 19"x8.5" -SOLD 255/30/19 SportMaxx Tires still FOR SALE less than 4kmi asking $850 OBO

03-25-2004, 04:43 PM	#4
carbonLORD AudiWorld Uber User Account #: 33185 Join Date: Feb 2002 Posts: 42,983	Its posts like these that make AudiWorld, AudiWorld! Now, how do we do it? __________________ "Change is inevitable" \| RS 6 Stuff \| www.carbonLORD.com \| 08 TT 2.0

03-25-2004, 04:55 PM	#5
airmax617 Member Account #: 57975 Join Date: Jun 2003 Posts: 2,028	this might be stupid but how do you tell your valve covers are leaking? __________________

03-25-2004, 04:57 PM	#6
OPTIMUS PRlME Member Account #: 67363 Join Date: Dec 2003 Posts: 3,631	there will be a noticeable burning smell outside the car and through the vents, in some cases, a little bit of smoke as well

03-25-2004, 04:58 PM	#7
Fairfax 2.7T Member Account #: 28004 Join Date: Nov 2001 Posts: 3,367	Maybe, Maybe Not My cam seals and valve cover gaskets were replaced under warranty at around 10,000 miles. To my knowledge, the breather valve was never replaced. I now have about 28,000 miles on the car and no oil leaks. If the breather valve was bad and caused my oil leak, than the seals and gaskets would have blown out again. Maybe you are right in many instances. However, I'd bet that for me, there was a different reason for the seal/gasket failure. I'm sure that there is something more going on (like the seals or other component) are badly designed. __________________

03-25-2004, 04:59 PM	#8
OPTIMUS PRlME Member Account #: 67363 Join Date: Dec 2003 Posts: 3,631	Here's a response from the B5 S4 forum to Dallas's xpost there. http://forums.audiworld.com/s4/msgs/1591388.phtml .

03-25-2004, 05:08 PM	#9
JAH1 New Member Account #: 927 Join Date: Mar 2000 Posts: 431	can you see the leak if you remove the eng. cover? more... ...on that cross post there is a bentley diagram that explodes the parts and numbers them. where is the y thing? also, every time i see one of your posts i check out the quiznos ad and LOL. what is wrong with me? joe 99 a6 wagon w/ 52K miles.

03-25-2004, 05:18 PM	#10
OPTIMUS PRlME Member Account #: 67363 Join Date: Dec 2003 Posts: 3,631	not sure if you can see the leak...the reply to dallas's post suggest that there is no breather pump... so i'm just as lost as you are.

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