Fuel delivery problem
Post Fiend
Joined: Jun 2001
Posts: 7,493
Likes: 7
From: Erie, pa
You've said that the Truck will run when it's parked. I take it you mean where you normally work on it. Then when you try to drive it the trouble starts. Try moving it to another location where the Truck is sitting differently, let sit awhile and see how it runs.
Truck Ghosts get used to doing their tricks in one location, this may fool them enough to solve the problem.
Truck Ghosts get used to doing their tricks in one location, this may fool them enough to solve the problem.
Postmaster
Joined: Jun 2004
Posts: 4,190
Likes: 2
From: Riverside, So Cal
I have been following this thread and feel sorry for your woes, but I haven't been able to add anything not already offered.
Just thinking out loud here. You say the fuel supply and pressure are fine until you put an increased demand on the system...then it falls on its face, right? It may be that there is a blockage in the tanks, but is it possible that there is a partial flow blockage (in the line between tank and fuel pump) that is permitting just enough fuel for the idle demand? I think you should try running it with a separate temporary fuel supply and see if that fixes it. Or, just replace that line from tank to pump.
Just trying to help here...
Just thinking out loud here. You say the fuel supply and pressure are fine until you put an increased demand on the system...then it falls on its face, right? It may be that there is a blockage in the tanks, but is it possible that there is a partial flow blockage (in the line between tank and fuel pump) that is permitting just enough fuel for the idle demand? I think you should try running it with a separate temporary fuel supply and see if that fixes it. Or, just replace that line from tank to pump.
Just trying to help here...
Thread Starter
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Junior User
Joined: May 2007
Posts: 79
Likes: 0
From: Mission Viejo, CA
Well, I checked the line running from the tank to the fuel pump. No blockages, and gas flows very freely. The tank is clear of debris, and I replace the line for the new fuel pump to the carb. I really have done everything I can think of at this point, I guess I will just have to break down and buy a new Holley 1904 to figure out if it is the carb.
Laughing Gas
Joined: Jun 2007
Posts: 815
Likes: 29
From: Richland, WA.
Chris, Did you pull the tank and flush it. my truck had simular problem when my Dad owned it. He pulled and cleaned tank and discovered that the California truck had a paint/epoxy liner that was coming free from the tank. Radiator shop fixed it. Just a thought. Good luck Kurt G.
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Junior User
Joined: May 2007
Posts: 79
Likes: 0
From: Mission Viejo, CA
Hey Kurt, I already took the sending unit out to take a gander inside. There isn't a sopt of rust or corrosion anywhere. In fact, I was shocked at how flawless the inside of the gas tank was.
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Junior User
Joined: May 2007
Posts: 79
Likes: 0
From: Mission Viejo, CA
Well, it seems that I will need to purchase a remaned carb. When i went on Kragen's website, 4 carbs came up with my vehicle description. (1956 F-100, 3.7L 6 cyl., Manual Trans) They are:
Kragen Part #650A: Reman, Holley 1904
Kragen Part #651: Reman, Holley 1904, With Ball Type Air Horn, Manual Transmission
Kragen Part #654: Reman, Holley 1908
Kragen Part #649: Reman, Ford 1904, Manual Transmission
I was just going to get the first one, but with the other search results, I was a little unsure on which carb to get, and could use your guy's opinions.
Thanks in advance!
-Chris
Kragen Part #650A: Reman, Holley 1904
Kragen Part #651: Reman, Holley 1904, With Ball Type Air Horn, Manual Transmission
Kragen Part #654: Reman, Holley 1908
Kragen Part #649: Reman, Ford 1904, Manual Transmission
I was just going to get the first one, but with the other search results, I was a little unsure on which carb to get, and could use your guy's opinions.
Thanks in advance!
-Chris
Elder User
Joined: May 2006
Posts: 907
Likes: 1
From: Kansas City, Mo
Fuel blockage
Did anyone suggest checking the screen/strainer on your fuel pump bowl for partial clogging? I found a old "Motor's Repair Manual" and this was a point to check. Have a great day,chuck
Thread Starter
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Junior User
Joined: May 2007
Posts: 79
Likes: 0
From: Mission Viejo, CA
Hey Chuck, I just replaced the fuel pump last week. I think it is definately a carb problem at this point. At least I will be able to check that off the list if it isn't. Does anyone know which part from the list above will work for my application?
Thanks!
Chris
Thanks!
Chris
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,966
Likes: 9,774
From: Rio Rancho, NM
Did you ever try the suggestion of rigging up an alternative fuel tank? You could do this several different ways to eliminate different parts of the system. The first step would be to rig up a can and run a line from the fuel pump to it. That would eliminate the original fuel tank and fuel line between the tank and fuel pump. Another option would be to rig up a tank higher than the carb so that gravity feeds the carb. This would eliminate the entire fuel system except for the carb.
When I first fired my truck up and drove it around the block I had a 2 gallon plastic gas can held to the cowl with bungee cords. I ran a fuel line from the vent of the gas can to my carb.
I'd hate to see you spend big bucks on a new carb and have the same problems as before.
Good luck
Bobby
When I first fired my truck up and drove it around the block I had a 2 gallon plastic gas can held to the cowl with bungee cords. I ran a fuel line from the vent of the gas can to my carb.
I'd hate to see you spend big bucks on a new carb and have the same problems as before.
Good luck
Bobby