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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

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Old Aug 16, 2021 | 12:49 PM
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Post Carb Issues

On my 1965 Ford F-100, I have an Edelbrock 1404 carb. After driving, fuel leaks into the vacuum advance to distributor. Then the truck doesn't start, only turns over. Also, my fuel economy is down significantly, almost seems that I only get 5 mpg. What could be causing this? Thank you
 

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Old Aug 16, 2021 | 02:24 PM
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It sounds like either the floats are sticking with the needle open or the fuel pressure is too high, overfilling the bowl.
 
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Old Aug 16, 2021 | 02:56 PM
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From: Lacey
Check your engine oil too. Could've fuel washed the engine a bit with stuck floats.
 
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Old Aug 16, 2021 | 03:14 PM
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Originally Posted by 66v8baby
It sounds like either the floats are sticking with the needle open or the fuel pressure is too high, overfilling the bowl.
My pressure regulator was set at 5, so I lowered it down to 4.
 
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Old Aug 16, 2021 | 03:26 PM
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Originally Posted by Fordf1006578
My pressure regulator was set at 5, so I lowered it down to 4.
Is that a known number or what it says on the regulator?
 
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Old Aug 16, 2021 | 04:31 PM
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Originally Posted by Christmas
Is that a known number or what it says on the regulator?
From the regulator. When I bought the truck, it was set ant 5 1/2. A buddy of mine runs his at 3. My local mechanic suggested to keep it low in the summer, then raise it back up in the winter. But other than adjusting the reg, I am still curious WHY fuel is seeping into the vacuum line. Any ideas.
 
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Old Aug 16, 2021 | 04:34 PM
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Originally Posted by Fordf1006578
From the regulator. When I bought the truck, it was set ant 5 1/2. A buddy of mine runs his at 3. My local mechanic suggested to keep it low in the summer, then raise it back up in the winter. But other than adjusting the reg, I am still curious WHY fuel is seeping into the vacuum line. Any ideas.
On another note: My mechanic suggested installing electric fans on a new radiator. What are you thoughts?
 
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Old Aug 16, 2021 | 04:58 PM
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Lemme guess, it's one of these type deals....

 
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Old Aug 16, 2021 | 09:23 PM
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Originally Posted by dubya TF
Lemme guess, it's one of these type deals....
Exact! Are they junk?
 
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Old Aug 16, 2021 | 09:35 PM
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Originally Posted by dubya TF
Lemme guess, it's one of these type deals....
I put one of those in a few years back. Worked ok for awhile but now it's backed down to 1 and still reads 5.5-6psi. I have a holley dual feed regulator that needs to be installed some day.
 
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Old Aug 17, 2021 | 04:08 PM
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They are in fact, junk. Prone to internal leaking due to not being assembled from finely machined parts and also hyper-sensitive to vibration. Some may work well for a period of time but still not a quality part to rely on.
 
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Old Aug 17, 2021 | 07:02 PM
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Originally Posted by dubya TF
They are in fact, junk. Prone to internal leaking due to not being assembled from finely machined parts and also hyper-sensitive to vibration. Some may work well for a period of time but still not a quality part to rely on.
Do you know of a better option to use? Maybe better brand?
 
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Old Aug 17, 2021 | 07:16 PM
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Holley 12-804 Chrome Carbureted Fuel Pressure Regulator | eBay
 
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Old Aug 17, 2021 | 08:20 PM
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Thank you for the link on the reg. What is your recommended setting on psi, as that reg is 1-4. Thank you
 
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Old Aug 17, 2021 | 09:46 PM
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5psi works well on most all carbs.
 
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