What does this pipe do?...update..turbo now works! [Archive] - SaabCentral Forums

: What does this pipe do?...update..turbo now works!


Mofflet
13-04-04, 11:07 AM
Is cracked and maybe letting air escape? what does it do?

does saab have an ETK disk like bmw?

boxman
13-04-04, 12:16 PM
that is the crank case vent pipe the small plastic thingy is a one way valve that stops boost pressure entering the engine, there is a good chance that all or most of the pipes like that are split and this could be causing the boost probs

boxman :wink:

Mofflet
13-04-04, 12:29 PM
i cut the pipe down and connected it properly up as there was an obvious gap!

i also found a good picture of the hooter valve

http://www.quasimotors.com/bpc_valve.htm

and was able to have a look at it!! THE VACUUM PIPE WASN'T CONNECTED!! GRRRRR :evil:

I connected it back to the hooter after cutting it down and took her for a spin!

HUGE HUGE HUGE HUGE GRIN!!!! :D


The stalling problem has gone!
The mpg readout has doubled!
She goes like stink!!

Mofflet
13-04-04, 12:32 PM
if the car has been like this for a while, could damage have been caused to the turbo?

boxman
13-04-04, 01:05 PM
no there should be no harm done to the turbo you can now appresiate the full power of this beast

boxman :wink:

Mofflet
13-04-04, 02:37 PM
i changed it now :D


Ye the car is great now! much happier!

clg31187
13-04-04, 05:43 PM
If you have a vac line that is cracked/falling apart, you should splurge the whole $35 and get a new set. Saabsavior will send you a kit of silicone ones in the color of your choice.

Christophe

Mofflet
13-04-04, 06:12 PM
that was a question i was going to ask?

who is this person and how do i contact?

greenphotos
15-04-04, 03:04 AM
I got all my vacuum hosing from www.partsforsaabs.com and it is great. Pretty cheap too! You can buy it in meters and I had great fun swapping it over. You may not need all of it though, I replaced it all because it looked good :oops:

I also replaced the non-return valve with one from RS components:
http://home.btconnect.com/greenphotos/BPC/BPC_Non_Return_Valve.jpg
It only cost just over £9!!!

Mark
:cheesy:

boxman
15-04-04, 03:09 AM
mark you never did give me that part no :nono;

it doesn't matter now i've found then on the norgren site :cheesy:

jon :wink:

greenphotos
15-04-04, 03:15 AM
Ooops! Sorry. I think it is 290-3670 from RS.

Totally slipped my mind (as happens a lot :oops: )

As discussed here:
http://www.saabcentral.com/forums/viewtopic.php?t=23048

Mark
:cheesy:

Mofflet
15-04-04, 06:27 AM
heers guys

i checked yeasterday and the turbo doesnt go into the red. anyone know what might be wrong?

Mofflet
15-04-04, 07:56 AM
which type do i need?


SFS 4mm SFS Performance 4mm Silicon Vacuum hose in BLUE, BLACK or RED


SFS 6mm SFS Performance 6mm Silicon Vacuum hose in BLACK
(click for more info)


Also i found the ITG filter for the carlsson BH-119? is this the right part and if so i found it on

http://www.needforspeed.co.uk

for £39 including delivery compared to £47 without delivery from partsforsaab

thanks

greenphotos
15-04-04, 09:11 AM
The blue piping is the 4mm type.

I think the 6mm is the one for the BPC shown below, you can see the black pipes on the BPC, and the blue one coming out of the RecircBOV.
http://home.btconnect.com/greenphotos/BPC/BPC_Job_Done.jpg


Mark
:cheesy:

Mofflet
15-04-04, 09:34 AM
so do i need both types to replace the stuff in the engine?

Tone_Depear
15-04-04, 09:42 AM
I got all my vacuum hosing from www.partsforsaabs.com and it is great. Pretty cheap too! You can buy it in meters and I had great fun swapping it over. You may not need all of it though, I replaced it all because it looked good :oops:

Do we have a definitive total length required for a FPT 9k?

so do i need both types to replace the stuff in the engine?

Yes.

Mofflet
15-04-04, 09:55 AM
thanks, ill wait until i know how much i need for sure

greenphotos
15-04-04, 10:00 AM
I can't remember exactly how much I got, I think it was 3 metres of the 4mm blue one and I have a bit spare fo the future.

Probably it is best to check with Simon at PFS. He was very helpful in advising. Send in a quote request on the website and he'll let you know. He could probably put some Saabcentral stickers in there with the package too!

Mark
:cheesy:

Rhich
15-04-04, 03:14 PM
What is that Norgren do-dad pictured with the blue lines that Greenphoto’s posted ?????

Tone_Depear
15-04-04, 05:08 PM
What is that Norgren do-dad pictured with the blue lines that Greenphoto’s posted ?????

Its a non-return valve, as found on the crank-case breather, only a lot more funky-looking. I think!

Rhich
15-04-04, 05:11 PM
Where can I buy them ? :wink:

greenphotos
16-04-04, 02:59 AM
What is that Norgren do-dad pictured with the blue lines that Greenphoto’s posted ?????

Its a non-return valve, as found on the crank-case breather, only a lot more funky-looking. I think!

Indeed, it is the non-return valve, my plastic one was broken (I could blow both ways!) so I replaced it with this. I think there is a Saab specialist somewhere that is selling these for about £40! Mine was only about £9! :lol: Abbott Racing says they just put a straight pipe in there instead but I don't believe Saab would put it there unless it had a decent purpose.

Rhich, I don't know if RS supply the US, look on thier website for info.

Boxman, you found Norgen's website, is there anything usful on it?

Mark
:cheesy:

Wamphyri
16-04-04, 03:03 AM
hrmmm i was gonna ask how you know if its broken but you answered my question qreenphoto's and i guess i hata go pick one up because mines broken as well..

greenphotos
16-04-04, 03:09 AM
hrmmm i was gonna ask how you know if its broken but you answered my question qreenphoto's and i guess i hata go pick one up because mines broken as well..

I think the purpose of this valve is to release the pressure in the rocker cover* so it doesn't build up (so a broken one is fine for this purpose)but I think it becoming an air 'leak' from the inlet manifold.

Mark
:cheesy:


*if that's the correct name for the black case around the DI cartridge))

Wamphyri
16-04-04, 03:25 AM
i have also heard it referd as a rocker cover, valve cover and few other.. including leaking peice of #$%@ ;)

greenphotos
16-04-04, 03:39 AM
including leaking peice of #$%@ ;)

:lol: :lol: Oh it's so true ... :lol:

djtaylor
16-04-04, 05:12 AM
Greenphotos, I think you'll find that the purpose of this valve is to allow the rocker cover fumes to vent into the inlet manifold during overrun when the inlet manifold is in vacuum.

If the valve is bust then you could pressurise the rocker box when under boost.

At least, that's my understanding of its purpose.

David.

greenphotos
16-04-04, 05:39 AM
You are probably correct, strange how Abbott recommended removing it :o :!

Mark
:cheesy:

Carls_Son
16-04-04, 06:10 AM
If the valve is bust then you could pressurise the rocker box when under boost.


Could this be why so many 9000's have leaky rocker covers ???


just a thought :!

C

djtaylor
16-04-04, 09:05 AM
Quite possibly plus pressurising the crankcase too? It's normal to feed crankcase fumes back into the combustion process to reduce emissions but it's little insignificant items like this that get forgotten I guess unless there's an immediate effect.

David.

dagmando
16-04-04, 11:02 AM
It is only there for emmision so not to let out the gases. The one way check valve is designed to suck out the gases when not in boost, but then closes under boost to prevent presurizing upper engine causeing leaks and most important, loosing boost presure. Remember, you only achive the most efficient boost when everything is sealed after the turbo. An straight pipe instead of one way valve will just bleed off boost like putting a hole in the side of the intake pipe, so I am very surprised any qualified SAAB serice shop would recommend this, it is plain WRONG, no if ands or buts about it. In non-turbo engine this is fine because you always have suction from the intake and never boost.

djtaylor
16-04-04, 11:36 AM
What I said then! :)

Mofflet
16-04-04, 12:43 PM
i went to saab and asked how much it would be for the 85mm piece of tube that i needed! £35 cos they only sell it in meter rolls!

boxman
16-04-04, 01:18 PM
Boxman, you found Norgen's website, is there anything usful on it?

Mark
:cheesy:

yes mark norgren has a couple of differant types of one way valves,the one you have is capable of holding about 10 bar if i remember right,thee is another one that does not hold that nuch but it doesn't need to,it also looks cool too and thats about £6,

boxman :wink: ps i would put up a link but i'm not sure how to

Tone_Depear
16-04-04, 02:13 PM
boxman :wink: ps i would put up a link but i'm not sure how to

Here's one:

http://webstore.norgren.com/

Click "browse catalogue"

Then type T50P0004 or T50P0006 into the part number search field. (I'm not sure which. I suspect T50P0004). Mark?

Mofflet
16-04-04, 03:25 PM
T50P0004 will do up to 16 bar so i suspect it will do

Wamphyri
16-04-04, 11:41 PM
they both do 16 bar i'm just trying to figure out the difference between T50P0004 and T50P0006

*EDIT*

figured the difference ones for 4mm and ones for 6mm hence the 4 and 6 at the end lol