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Re: Street- pulled the vent tube. Guess what? 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 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
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