[Main 9000 Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos Re: Street- pulled the vent tube. Guess what? Like This Post: - Subscribe to Daily Digest for this Bulletin Board Posted by Kevin M [Email] (#1193) [Profile/Gallery] (more from Kevin M) on Thu, 28 Aug 2008 16:37:24 In Reply to: The theory works like this..., Street, Wed, 27 Aug 2008 20:07:40 Alert me when someone posts in this thread: Members do not see ads below this line. - Help Keep This Site Online - Signup

The tube angle points directly into the air-flow. As you well know, this tube is rigid at that point and cannot be re-oriented. I think that I would agree that having the cut-out facing the compressor would draw suction, so with the orientation as it is, how is it functioning?
Maybe Ari would like to chime in with his aerospace knowledge on this application of venturi effect.
I am not up on bernoulli calculations nor the engineering behind this venturi setup. All I know is that the on-rush of incoming air should create some suction on the vent tube thereby, as you stated, reducing the crankcase pressure.
My brother gave me a manometer to use as a test instrument, so I will insert the device into the valve cover tee, go for a ride and see what kind of readings the car produces. I will repost with my findings.
As far as vacuum gauges are concerned, yes I have one. Would you care to elaborate on just what one may observe with a leaking valve guide seal. Or, better yet, would you care to offer up a write-up describing the vacuum test procedures (particular to the 9K) for the BB resource? We would all be thankful so we can use the info as a diagnosis guide prior to posting.

All the best,
K

• Crankcase venting question- What prevents the manifold, Kevin M , Tue, 26 Aug 2008 16:45:34
  • Ok guys, put a vac gauge on and went for a ride. Result, Kevin M , Mon, 8 Sep 2008 12:51:46
  • The theory works like this..., Street, Wed, 27 Aug 2008 20:07:40
    • Re: Street- pulled the vent tube. Guess what?, Kevin M , Thu, 28 Aug 2008 16:37:24 <-- Viewing This Message
      • Misinformation on my part (sorry)..., Street, Sun, 7 Sep 2008 15:50:27
      • How to Use and Interpret a Vacuum Gauge, Bill Homer , Fri, 29 Aug 2008 08:44:46
        • Excellent! n/m, Street, Sun, 7 Sep 2008 16:11:21
    • Re: The theory works like this..., oldsaab, Wed, 27 Aug 2008 21:54:59
  • The crankcase is 'sealed', Ari , Tue, 26 Aug 2008 18:39:46
  • Re: Crankcase venting question- What prevents the manifold, Aom, Tue, 26 Aug 2008 18:06:04
    • Re: Crankcase venting question- What prevents the manifold, Kevin M , Mon, 8 Sep 2008 12:27:02
    • Re: Crankcase venting question, Kevin M , Tue, 26 Aug 2008 18:38:04
      • Re: Crankcase venting question, Ari , Tue, 26 Aug 2008 18:53:13
        • Re: Ari, Thanks- a little more input, Kevin M , Tue, 26 Aug 2008 19:33:22
          • Re: Ari, I did the high vacuum test-some smoke at, Kevin M , Wed, 27 Aug 2008 10:38:55
            • Re: Ari, I did the high vacuum test-some smoke at, Ari , Wed, 27 Aug 2008 15:56:44
              • Re:Vacuum test results revisited-, Kevin M , Thu, 28 Aug 2008 10:01:00

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

• Prev by Date: EDU Display - random craziness!, perryd, Thu, 28 Aug 2008 16:07:46
• Next by Date: Re: EDU Display - random craziness!, Ari, Thu, 28 Aug 2008 16:47:34
• Main 9000 Bulletin Board

StateOfNine.com

SaabClub.com

Jak Stoll Performance

M Car Covers

Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

Random Saabnet.com Member Gallery Photos (Click Image)