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post #1 of (permalink) Old 09-01-2003, 11:52 PM
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carb problems

I have a '75 CJ-5. I have put a 2 bbl intake from a 85 and put on a holley 2bbl 350 cfm. It does good up hill and on the rocks, but not uphillon the rocks. It keeps flooding out on me. Anyone have any sugestion on how to solve this, short of fuel injection. It has a fron fuel bowl, I believe it is a model 2300. Thanks. [img]images/graemlins/cussing.gif[/img]
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post #2 of (permalink) Old 09-02-2003, 01:15 AM
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Re: carb problems

could try running a piece of hose up about two inches from the bowl vent and see if that helps, other than that check the float level, not too sure about the holley 2bbls

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post #3 of (permalink) Old 09-02-2003, 03:52 AM
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Re: carb problems

I'd try lowering the float level first. Adding the tubes to the vents helped very little on my Holley (4bbl).
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post #4 of (permalink) Old 09-02-2003, 11:33 PM
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Re: carb problems

I was planning on lowering the float, just wish I had tried it on the trail. What are the consiquesces of running on the highway with a low float?
post #5 of (permalink) Old 09-03-2003, 12:00 AM
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Re: carb problems

Lowering the float will lean the mixture through the entire range and every operating mode. Normally carbs are tuned to run pretty close to the lean limit on the mid range, which is where it should be cruising on the highway. If it gets too lean from that point it can lead to burned valves, detonation, and holes in the piston crowns.

What you should do is drop the level just a little at a time - 1/32" maybe, no more than 1/16". Then run it at low engine speed with full throttle. If it knocks you've gone too far. Then run it on the highway for a while and read the plugs. If they turn white, insulators glaze, electrodes round off, you've gone WAY too far, and are flirting with disaster.
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post #6 of (permalink) Old 09-03-2003, 12:20 AM
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Re: carb problems

EXCALENT response!!!!!!!!!!!!!!!!!
lower the float level little by old rule of thumb trick;
hold the carb top upsidedown w/the float and needle installed, and the needle should be closed(without any pressure)with the float paraell to the top of the carb.
good luck,and don't lean it out to far!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!
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