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Carburater

Home > Discussion Forum > Mechanic's Corner - Engines

Email Author email Ray Holt  Reply to Message reply to message  Post New Message post new message      search forums
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Carburater Ray Holt 5-3-08  
I hope someone can help me here.

I have a 1977 Dodge 440 engine in my King's Highway RV. The engine has an Edelbrock Venus carburetor. One morning it would not start. Here are some things I have done.

1. changed the fuel pump at the urging of Edelbrock as they said the pressure at the carb needs to be 5.5-6.5 and i was only getting 3.5-4. a new Edelbrock fuel pump did not change anything.

2. pressure at the carb is around 4 psi.

3. i removed the fuel line at the carb and plenty of gas is flowing.

4. if i pour some gas into the carb it start immediately and runs for a few secs.

5. when i pump the gas peddle i do not smell gas nor do i see any shooting into the carb. the mechanical arm that pushes on the small rod to the carb pump is working.

6. i have change my inline canister filter and the small filter into the carb.

7. plenty of gas in both tanks. switch over value is working ok as measured by the flow of gas at the carb. (see #3)

any tips, hints, suggestions for me. the frustration is setting in.

thanks, ray
Re: carburater thom 5-5-08  
Ray, It has been a while since I messed with a carburater but it sure sounds as if the float is stuck in the up position.
Re: carburater ray 5-14-08  
I finally found a local mechanic that knew the problem. basically, my carb was full of gum and junk from sitting too much. i had to have it cleaned out and now it works great. fuel pump as diagnostic by the carb (edelbrock) tech was NOT the problem. carb runs fine on 3+ psi pressure and does not need the 5+psi as told me by the edelbrock tech. his bad advise cost me $200+.

Ray
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