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turbojimmy's avatar
turbojimmy
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Aug 30, 2014

Quadrajet Carb Leaking?

I bought a remanufactured Q-Jet for my motorhome when I put the "new" engine in. Let me first say that it runs awesome. Plenty of power, no stumbling, smooth idle. When it's warm anyway. The choke opens too quick and the high-speed idle never kicks in. I've been goofing around with the choke settings trying to get it set right. But that's not my question - I'm still learning my way around the adjustments.

My question has to do with fuel apparently pooling in the area indicated by my crude arrow in the picture.



I've been reading up on float level adjustments and it's not exhibiting any of the symptoms of flooding. I don't think. But I don't know what else would cause fuel in that area. It did fail emissions miserably (running very rich). In trying the "lean drop" tuning method, I could turn both idle air screws all the way in and not get a drop in idle. So maybe the float is too high and weeping into the secondaries? Again, it doesn't seem to be running rich and doesn't flood on decel like it would if it were getting a lot of unmetered fuel.

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