 Porsche 914-4 Weber Carb running rich, Weber Carb running rich on #4 only |
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| Superhawk996 |
 Nov 15 2023, 11:38 PM
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#21
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914 Guru  Group: Members Posts: 6,709 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch 
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@spoke
Yes that location is where the idle jet is at. Just above that on the top of the carb body is where the tiny brass calibrated air hole is that allows air into the idle jet to mix with fuel. I am curious about the hose vacuum pump setup shown in that graphic. I had never considered if it could somehow be cleaned by a vacuum and maybe lifting some fluid out of the bowl to wash out debris ? Hmm? Caught in my own trap of “this is the way I’ve always done it”? Unfortunate. Maybe someday I’ll have to try it - I like the concept of drawing crap out vs trying to power it out with compressed air which probably would not have worked for the little rubber chunk he showed. Really interesting. Thanks for sharing that! Let us know how it works if you use that vacuum method. |
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| Spoke |
Nov 27 2023, 08:19 PM
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#22
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Jerry Group: Members Posts: 7,126 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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@Superhawk996
Thanks. I tried to take out the idle jets with the carb in the car but I couldn't even see the jets so I took the carb off. Turns out the jet was clogged with something. Cleaned it out, blew it out and reinstalled. Running like a champ now. Thanks for the help. (IMG:style_emoticons/default/beerchug.gif) |
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| Al Meredith |
Nov 28 2023, 10:26 AM
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#23
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Senior Member Group: Members Posts: 969 Joined: 4-November 04 From: Atlanta, ga Member No.: 3,061 |
I have to blow out the idle jets all the time . Seems the alcohol fuel causes the rubber fuel lines to detreat and fill the jets with brown goop[. Happens to me all the time even though I have installed new hoses that are supposed to be OK for alcohol fuel. Since this goop is not solid the fuel filter does not ketch it.
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| 930cabman |
Nov 28 2023, 11:19 AM
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#24
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Advanced Member Group: Members Posts: 3,870 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(Spoke @ Nov 27 2023, 09:19 PM)  @Superhawk996 Thanks. I tried to take out the idle jets with the carb in the car but I couldn't even see the jets so I took the carb off. Turns out the jet was clogged with something. Cleaned it out, blew it out and reinstalled. Running like a champ now. Thanks for the help. (IMG:style_emoticons/default/beerchug.gif) Good call, I have found it easier (safer) to remove the carbs when fooling with the idle jets, it's too easy to get them cross threaded otherwise. Great news, unclogging an idle jet can make all the difference in the world. |
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