I have a simple problem and I have searched but cannot find my particular situation. my truck is a 74 f100, 302 v8, two barrel carburetor. It now takes a long time to start after setting all night. After it starts the first time, I have no trouble the rest of the day.

I am guessing that I am having fuel leaking down and possibly evaporating overnight.

ONe of my questions is - will a carburetor rebuild kit fix this problem?

Also, I don't know what carburetor I have. The motorcraft carburetor ( looks like a holley to me) has a tag that has some letters that start "D 4 T E . . . ". It also has a number which looks like 899. Is the carb identifier 899?

I did see the various carb types on Blueoval earlier. I cannot now download the catalogue as our phone system is very poor where I am at.

Any help will be appreciated.

 

Olustee Bus, welcome to FTE, please read https://www.ford-trucks.com/guidelines.html

Definetly sounds like a fuel problem.

Remove the air cleaner and check the choke setting, set the fast idle.

Verify the accelerator pump on carb is functioning properly, it could be worn.

 

I just pulled my 302 out for a 351W in my 1974 F100. It was running fine. Several years ago I had the same problem with the carb. I had it rebuilt and it never gave me any more trouble.

 

Sounds like you need a fuel pump on the block to me- if press is bleeding back from the carburetor then the diaphragm in the pump is likely going bad. I had the same problem on my 82 a while back tried two diff carbs ended up being the pump.

 

I was able to run down your carb kit part number by using just the D4TE tag number you posted above.

The Ford part number for the carb kit is: D4AZ-9A586-A

Motorcraft Part Number: CT-499-D
.................................................. .....................

 

Should be a Ford 2100 or 2150 .

Motorcraft service carb number CA1792

overhaul kit CT499D

 

Thanks to all for the great replies. I am going to rebuild the carb and probably replace the fuel pump. I am going to check with the prior owner to see if he had replaced the pump before.

I had a need for an older truck last summer. I was looking around and a good friend told me that I could buy his "Ol Blue" if I wanted it. He said that at least you know it will be a truck rely on to drive to Florida, where I needed it. Well, I probably paid a premium for the old truck but it is serving the purpose.

I bought it one day and the next I left out for Northeast Florida from North Alabama at 5 the next morning. I was worried about it making it. It has no AC so I got a little warm.

But "Ol Blue" kept on trucking and after 9 hours, we cruised into our driveway. That is how I ended up with the truck and I love driving it.

 

I can tell from your signature "Olustee" that you are from Lake City, FL. I will be driving "Ol Red" 1974 F100 to the annual Battle re-enactment this year.

 

You mentioned a very good point, on these classic Ford trucks. They are very enjoyable to drive and cruise.

Check all fuel lines from gas tank to carb for cracks, wear, or hardened rubber. R&R as necessary. Inspect and replace fuel filter.

 

I hope to be there. I only live about 3 miles from the battlefield ( not at the Prison! ). I will look for you.

 

My brothers F-150 did the same for along time. He put a new Holly carb on it and the problem went away with the old carb.

 

I am still having this problem and it is much worse. I had the pump replaced. The carburetor is new. I fixed the line coming from the steel fuel line to the pump as it was leaking. I see not other areas leaking.

Would the pump hold prime?

could it have been put on wrong and will not pump adequately. I know on chevies you can not install the pump incorrectly and it will look ok and fit ok but the cam actuator will not be on top of the cam, thus it would not pump. I suspect The guy who put this on was not anywhere near a qualified mechanic.

However, after turning over a very long time, it will crank.

 

Took the carb off. The bowl was empty except for a few drops of fuel. I thought I was missing a float needle but I found it. I do know I was missing a gasket for the float barrel. I replaced the fuel economizer because it was at the bottom of the float bowl.

 

So where are you at with this Olustee ?

 

I think I fixed the fuel starving problem. It was missing the valve needle "body" gasket and I think it may have been leaking back to the pump. It did not take long to get gas to the carb and it started right up.

Like I said, it is not starving for fuel, unfortunately it is getting way too much fuel running real ruff and very lean.

I took the carb off, the top and I noticed the spring holding the needle to the float mechanism was missing. I don't think there was one ever there. I got the one out of the rebuild kit and installed it. I don't know if that will help or not.

before I put it back on, I need to find out where a small spring goes. one end is connected to the bracket that holds what appears to be an electric servo that effects the idle. that bracket is on the front left of the carb base.

Thanks for checking back.