4 Reasons Why Your Carburetor is Flooding

Today we'll talk about the top 4 reasons why your carburetor is flood and talk about how to correct it! Flooding sucks, but its extremely dangerous. Get a grasp of the situation quick!

#carburetor #flooding #holley

[rileysrebuilds]

awesome tip on heating the water for a float hole test. We just had a rebuild come back because of a pin hole.

[jasondingram]

Great video! I commented on another video about my 1406 flooding. I discovered that the cheap rebuild kit I bought had a needle valve that was sticking in the seat AND I had my floats set too high. I tried setting them at 1/2" for a slightly built 289 however, my carb setting skills have never been good. Thanks again for the information!

[tkracing]

I got another thing to check for . Improper assembly causing flooding. I recently tore apart an eddy and the needles were installed upside down! And i will admit this was done 20 some years ago by me! Boy did the fuel gush out the top of it!!

[calvineller]

Thanks for sharing your knowledge with us. I've learned so much more about carburetor than I thought I knew. Great Job.

[johnweaver]

I have a feeling a lot of people would love to see the Chevelle project that's what made me subscribe, then I couldn't stop watching, lol

[guylipsky]

I have a 1987 302 in a 1937 Dodge pick up sat for years before I got, removed 3 duces and installed a new elderbrock. It only trys to flood during first starting of the day, I have the electric chock set at near zero and I have got the timing perfect, the carb I used a vacuum gage and set to the highest vacuum, that was 300 miles ago and probably should reset, I have used a valve cleaner and changed the oil 3 x

[vicmacias]

I have carb issues right now. Great advice. I think I found one of the solutions. Great videos too, by the way. Thanks!

[pacbrian]

ah the float in boiling water trick! old shop teacher taught us that way back in the day! great tip bro

[Flysocietybc]

This video is extremely informative and your voice is not annoying sold intell thank you .

[melmen]

I have a carter 1 barrel on a 1966 valiant. It was flooding really bad the car not wanting to run. My carb was leaking around the bowl gasket and coming out the vent. I sent my carb to a shop and the guy said my float was out of adjustment he replaced the needle and seat from an original kit he had at his shop and adjusted the float. I get it back and it's STILL HAPPENING. although the leaking isn't near as bad. He then told me it has to be my fuel pump the pressure is too high. So I'm gonna check the fuel pressure if it's not the pump I just don't know what to do. Iv had it. But it could be the pump it's about 5 or 6 years old.

[johnweaver]

I was always curious how those pin holes developed with no obvious damage, I guess things just happen in the automotive world, thanks for the video

[YuckFou]

You certainly deserve more subscribers my man! Thanks for sharing your knowledge and nice vehicles!
I have a 72 Chevelle with a Holley and 72 c10 with and Edelbrock 😆
Bought a 5.5-9 lbs pump before finding out Edelbrock's allegedly don't like anything over 5.
The 3-7lb pump I had on prior worked fine with my filter hung higher than the carb. I lowered that below the top of the carb and it helped the flooding issue I've been having 🤷‍♂️
I'll bet raising the carb up and that ethanol gas treatment wouldn't hurt either

[markmorgan]

Thank You very much! I had fuel coming out of the overflow. I'll get a fuel pressure regulator and install it. Thanks again :)

[.Camaro]

My Edelbrock is flooding right now gonna give it a check but it’s a 750 cfm which is little big for my motor, figured I’d check these out first before buying something new, I do have a aluminum spacer which probably isn’t the best for the heat. I appreciate the video tho!

[Alexxviking]

this video is perfect! but I have an issue with my Rochester carburetor 2 jet one side one side works fine, and the other side just dumping fuel like a waterfall... any tips?

[ehguy]

Back in the day a guy had to order the two books on the 4150 and I think the 4160 to begin to gain some knowledge/insight into how their carburetor functioned and how to keep it working. That was fine when there was no alternative. Now enter Youtube and the forums. Video's like this pretty much negate the need for the books that once were the Only technical source available to the average guy.
I enjoy you video's and never fail go gain some insight and knowledge from them.

[and]

Another awesome video, thanks for keeping us informed! A suggestion for finding ethanol-free fuel; there are apps and websites that list locations that offer ethanol-free gasoline. It's easy to find these specific vendors and plan your gas stops along your route.

[JK-lwyj]

I have an AVS2 on my 65 Mustang, which has a 302. It uses the stock mechanical fuel pump. I recently installed a Marshall fuel pressure gauge, whcih is a high quality oil dampened gauge with a vent so it reads correctly when it heats up. It reads 5.5 psi at idle and drops to 4 psi when the rps increase. Edlebrock states that 5.5 psi is ideal for these carburetors and the range is 4 - 6 psi. So not all mechanical fuel pumps require a fuel pressure regulator and before installing one, you should first verify the fuel pressure.

[davidrosenthal]

Hello, first I want to thank you for the great content your providing. In my 64 Malibu SS I have a manual fuel pump on my custom 327 sbc. and the fuel pressure at a cold start is about 5psi. After about 15 minutes the pressure goes down to zero and stays there with no change to how the engine is running. Any ideas as to why ? If you have any questions for me to help you determine this issue please ask. The carburetor is a Holley 4150 (80670).
The car went through a complete frame off build about five years ago including powder coated frame, complete body/paint and drive line as well. Unfortunately I've neglected her badly due to other commitments. I recently tried to start her up but she would just not fire, I determined the fuel pump was bad so I replaced it. Tried to start her and she fired right up, after a 15 minute test drive I noticed she was running rough and would not idle. Fortunately got her home and was seeing fuel spewing down the venture (primary side). This is where I found you on YouTube. I replaced one of the needle/seat assy's. on the primary side only and that definitely helped but the pressure is still dropping off. Could I have a defective pump or could this be a carburetor problem.
Thank you for the great videos. !!!

[RICK_MCN]

I have a Holly carburetor and I can not get this to stop flooding I have done just about everything, all though I haven't looked to far in to the floats, the back is the one that is the worst out of the front. Please let me know what you think please. And great video by the way