Re: clogged idle air bleed
[Re: Bob_Coomer]
#510067
10/28/09 05:57 PM
10/28/09 05:57 PM
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All it controls is air...you know this Tony, this a trick question?..
no
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Post deleted by Defbob
[Re: Quicktree]
#510069
10/28/09 06:06 PM
10/28/09 06:06 PM
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Re: clogged idle air bleed
#510070
10/28/09 06:21 PM
10/28/09 06:21 PM
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Posts: 13,247 Mt. Vernon, Ohio
dartman366
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The smaller the bleed the richer the circut, the larger the bleed the leaner the circut,, in my opinion if one is plugged it will go dead rich.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: clogged idle air bleed
[Re: dartman366]
#510071
10/28/09 06:22 PM
10/28/09 06:22 PM
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The smaller the bleed the richer the circut, the larger the bleed the leaner the circut,, in my opinion if one is plugged it will go dead rich.
how would it pull fuel with no air?
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Re: clogged idle air bleed
[Re: AAR-B4]
#510073
10/28/09 06:30 PM
10/28/09 06:30 PM
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The idle passage is a slot just below the throttle plates when closed. Engine vacuum pulls fuel through the idle fuel restriction then the air bleed mixes air. The air bleed will mix air with the fuel so it is not "solid". Same with the hi speed bleed with fuel being pulled up the main well.
so your saying it will pull fuel reguardless if the bleed is clogged or not?
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Re: clogged idle air bleed
[Re: AAR-B4]
#510075
10/28/09 06:35 PM
10/28/09 06:35 PM
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Yes, but it will not be pre-mixed with air. It will idle rich.
well I am running into just the oppisite problem. it is way lean on tip in and I found 2 rear bleeds completely clogged.
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Re: clogged idle air bleed
[Re: Quicktree]
#510078
10/28/09 06:40 PM
10/28/09 06:40 PM
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dartman366
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The smaller the bleed the richer the circut, the larger the bleed the leaner the circut,, in my opinion if one is plugged it will go dead rich.
how would it pull fuel with no air?
The bleed is to air as the jet is to fuel, as bleed size is increased the air fuel ratio become's leaner, as the bleed is decreased it become's richer , so if it were plugged it would pull pure fuel as opposed to air emulsed fuel.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: clogged idle air bleed
[Re: RodStRace]
#510081
10/28/09 06:55 PM
10/28/09 06:55 PM
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Yes, but it will not be pre-mixed with air. It will idle rich.
well I am running into just the oppisite problem. it is way lean on tip in and I found 2 rear bleeds completely clogged.
http://www.carcraft.com/howto/ccrp_0507_carb_tuning_tips_tricks/photo_12.html
Tip in is 1. Idle circuit. If this is fine at idle, this is not the cause. 2. Transfer port. This is checked by holding the throttle open slightly (idle + 200 RPM) to see if it's lean there. Most 70s-up stock carbs are a bit lean here. 3. Accelerator circuit. This will show up at any RPM, but be more noticable at low RPM. Do you have issues at say 30 MPH? 4. Main circuit. This should start to work at ~1400 RPM. You can see this by looking down the throat. WARNING! lean pop may catch you in the face! 5. Power circuit. When it's a quick tip in, the vacuum drops enough to open the power circuit. If it is needed but does not work, this will also be a flat spot.
this is a 3 circuit dominator I am talking about.
http://holley.com/data/Products/Technical/199R9786-2.pdf
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