MAN, You really are not having any luck lately!
Lets try a few things...
*z50k2* Said,
*Well guys and gals..I did the off-road needles and seats and lowered the fuel bowl levels and still ol' yeller is flooding while bouncing around.*
*Someone suggested a carb whistle, but what ever it is, holley says that it will not fit my carb.*
I don't know for sure what he is talking about when he says 'carb whistle' either?...
I think he means the white plastic float bowl vent tube that runs from the valve body to the top of the float bowl in the front bowl.
It's designed to vent the bowl even during hard acceleration when the fuel would normally be climbing the metering block and getting out the bowl vent...
I don't know for sure how effective that vent extension would be, even if it is what he's talking about.
Many float bowl/ metering blocks won't accept them, especially the older carbs.
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*Any suggestions from the group is welcomed.*
Here are a few...
1. Check your vacuum while driving. You can not tune a Holley (or any carb) without knowing what the manifold vacuum is doing.
I need to know what vacuum reading you have going down the road at 55, and I need to know what your lowest vacuum is during normal driving...
That doesn't include wide open throttle while trying to pull out or something...
Just the lowest vacuum the engine sees when you try to pass somebody, or pull out in traffic...
This will tell me what power valve you should be running, and what settings you should have.
2. Get me the list number off of the choke horn. This number will tell me what carb you have...
3. Tell me how large your air cleaner is, or post a picture of it...
Small air cleaners, restrictive air cleaners, or air cleaners that are too close to the bowl vent tubes will cause a vacuum that pulls up fuel...
4. CLEAN THE AIR BLEEDS. There are four small holes at the top of the venturi bores. Get the carb cleaner with the little red tube attached, and blast away!
Even a very tiny piece of crud here will wreak havoc with the fuel and air mixtures.
5. Check the Choke pull off. Make sure the choke isn't getting loose and plugging things up...
6. Check your fuel pressure. If your fuel pressure is around 6-7 pounds, every time the float bounces or the jeep leans a little, the fuel pressure is blowing the needle off of the seat and flooding the vehicle...
7. Use Bowl Vent Tube extensions. I use everything from extra spark plug boots to stainless steel tubing to make tube extensions.
Slip FUEL LINE (don't use vacuum line) over the float bowl vent tubes, and cross them up high on the air cleaner stud.. (See Attached, really bad drawing...)
8. Do you have side pivot or center pivot float bowls?
Center pivot usually don't take tilts too well. They can be tuned up to do it, but side pivot is usually the way to go...
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*Please do not bash my holley it is all I have for the time being.*
Wouldn't dream of it. There isn't a carb made that has won more races in more kinds of racing than Holley, and NO carb can beat it when properly tuned....
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*Is the power valve possibly a culprit?*
It could be, but not likely. Usually, if the power valve is blown, it floods at idle.
The power valve is a normally open valve, that engine vacuum closes.
It may open or close too soon or too late, but if it were blown out, the carb would be really rich at idle.
The power valve is responsible for delivering 30 to 40 of the total fuel to the engine, so if it were open, it would be dumping very large amounts of fuel all the time, not just when you hit a few bumps or get in a tilt.
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*I have not yet climbed any rocks it is flooding just while riding on a VERY rough road.*
If it's doing OK on the highway, and at idle, we can work with it...
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*Thanks ..*
No problem.
Aaron.
If Chris Columbus "Discovered" America (with 25 million already here), Can I Go "Discover" Florida?
