Cold Condensation on Intake Manifolds (weber IDFs) |
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Cold Condensation on Intake Manifolds (weber IDFs) |
tornik550 |
Jun 22 2010, 08:04 PM
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#1
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Senior Member Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None |
I recently replaced my intake manifolds on my 914. I had a crack in my old manifolds from over-torquing them, Now I noticed that I have a lot of cold condensation on my new intake manifolds after running the engine (I didn't notice this with the old carbs but I dont remember ever checking). It occurs on all cylinders. I have a 2.27l with dual weber idfs. It is idling a little rough but I am working on some jetting issues so I am not sure what is causing that (I assume the jetting issues). I removed one of the carbs about 5 minutes after running th engine and there was a large amount of "fog" in both manifolds. I couldn't smell it from my position so I couldn't tell if it was gas vapor or water vapor. The intake manifolds are very cold. My engine is sucking in a large amount of air. With my "snail" synchronizer, the readings are always towards the top (25) at idle).
Is this normal? Any ideas? Also, when I changed my intake manifolds, I also changed to 34mm venturis from 32. This is why I am changing my jetting. I assume that the vent increase is the cause of the increased air. Not sure if that is the cause of the condensation. |
ArtechnikA |
Jun 23 2010, 05:17 AM
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#2
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
If you have an old enough UniSyn they're very nice. The 'new' ones I have seen are very crude copies, possibly made from the original 60-year tooling but now in China. Based on what I've seen of those, I wouldn't buy a 'new' one. I'm keeping mine, which I've had for 40+ years, and it works fine, but my personal experience with the 6-cylinder cars is that the Syncrometer works better for me.
And yes - any time you evaporate a large amount of liquid it will 'make cold.' |
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