Help!! Carb Going Crazy!!

[Anonymous]

I need help!

I just put a remanufactured engine into my 66 Mustang straight six 200, hooked everything up, and no leaks....followed the instructions to the letter and then turned the key and it wouldn't start. As I worked to find the problem I noticed that the carb (air filter off) was literally pooring gas out of the uppermost holes into the top of the carb. I unhooked the gas line to the gas pump, and after trying to start it for a couple minutes, the engine came to life and ran pretty well until the gas in the carb ran out. When I hooked the gas line up to the fuel pump, and tried again.....same thing. The carb is spewing gas down the throat in voumes, and then sometimes spitting some gas up in the air.

I don't know what to do.....I have come so far on this project, and now I can't get my car going. I have the stock Holley one barrel carb, I can't find any numbers on it. The only thing I can think is that when I had the carb off of the old motor, I had it about an inch above the workbench and it slipped from my hand and landed on the bench. Everything seemed to be fine, but maybe I dammaged something?? What do I do?

Any and all help is greatly appreciated.....

Ryan

 

[Junk-Falcon]

ppp

 

[Anonymous]

I tried tapping it....still does the same thing. How do I pull the front and look at the float? What do I look for? At this point, I want to try tapping the whole thing with a very large sledge hammer....but I will wait for the advice from you all....

Ryan

I also took the top off the carb, by removing six or seven screws. I found two floats that I could touch and they were moving freely when i pushed on them. Any other thoughts??? What am I doing wrong here?

 

[CobraSix]

The floats may not be set properly. Try bending the floats down some (Just a very small amount though). If the floats are too high, it can have this problem as well.

Slade

 

[simon]

what carb do you run on your engine? autolite 1100?

 

[strat1960s]

I had the same problem with my 2 bbl Weber carb. Have you checked your fuel pressure? That was suggested to me and I bought a pressure guage and a fuel pressure regulator. It turned out that the fuel pressure comming from my pump was just fine. I had a defective regulator that was cutting my fuel flow down to less than 1 PSI. Even though the gauge and regulator did not work on my carb, it may help you with your excessive fuel problem.
Another thing to consider. After I realized that I was not getting enough fuel due to my defective fuel pressure regulator, I started looking elsewhere. That was when I looked at my timing. It was suggested that my timing was 180 degrees off. That was not the case, but it was in fact off. I had my timing simply set at TDC #1.
The best thing I can tell you is to be systimatic. Write down everything from your fuel pump to the carb on a piece of paper. Trouble shoot each item to determine if it is working PROPERLY. Not just working, but working right. This type of trobleshooting may consume time, but it will get you more familiar with your cars systems.
Stick with it and leave that BFH (big friggin' hammer) on the workbench.
Hope this helps a little.
Ted

 

[Anonymous]

The Carb is a Holley one barrel. I don't know the model number but I do have pictures.

Strat, I have considered the Fuel Pump, but I am not shure how to check it out. Could a fuel pump be pushing way to much fuel into the carb? It was working just fine before I put in on the new engine, and it was just unbolted from old block, and onto new block....but I guess something could have gone wrong. Do you think it might be easier to just buy a new fuel pump and install it?

I know my timing isn't set exactly right yet, but it is close. I can't get it perfect because I dont' have the car running. Could timing have something to do with the fuel dumping into the carb?

I am willing to take the time to troubleshoot this correctly, but I feel pretty stuck.

Ryan

 

[CobraSix]

I think your floats are set wrong.

 

[Guest]

Does the carb look like this one?

When I first put this one on, I had a similar situation. The pin for the float slides out and the float falls off. I had to bend the pin to get it to not slide off.

Al

 

[strat1960s]

It's not very likely for a pump to produce too much pressure. If your timing is way off, like mine was, it could trick the motor into thinking it is running at wide open throttle.