Fuel System Question
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Fleet Mechanic
Joined: Feb 2019
Posts: 1,388
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From: California High Desert
Fuel System Question
So, ready to start my 223. Fires right up with gas down carburetor or with starter fluid. Can't get any fuel from fuel system. Pulled mechanical pump and pretty sure installed correctly. Tank and lines were all empty during rebuild. Does fuel system need to be primed? Can I use my brake bleeder vacuum tool to pull gas through the lines to the pump? This is on my 1959 f350 with gas tank in cab. Think I'll disconnect line at tank and pump inlet and blow out line first. Had all lines taped but it was down a long time.
Last edited by JohnNewb; Jun 12, 2020 at 06:27 PM. Reason: Add text
FTE Legend
Joined: Jun 2004
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From: Upstate NY
Do you have a filters in between the tank and pump? Do you have the pump with the filter in the bottom? If you disconnect line at pump gas should run out with tank level being higher. Is there gas in the tank? Not trying to be funny but hey, you never know? If you disconnect at carb does gas come out when you run the starter?
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Fleet Mechanic
Joined: Feb 2019
Posts: 1,388
Likes: 92
From: California High Desert
Do you have a filters in between the tank and pump? Do you have the pump with the filter in the bottom? If you disconnect line at pump gas should run out with tank level being higher. Is there gas in the tank? Not trying to be funny but hey, you never know? If you disconnect at carb does gas come out when you run the starter?
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Fleet Mechanic
Joined: Feb 2019
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Likes: 92
From: California High Desert
have no gas coming out of anywhere.
Mountain Pass
Joined: Apr 2020
Posts: 106
Likes: 11
With an air hose and lite pressure can you blow back towards the tank from the inlet of the fuel pump?
When you do do you hear bubbles in the fuel tank or just air?
I wouldn't think the pump should have a problem sucking the fuel up the puck up tube.
When you do do you hear bubbles in the fuel tank or just air?
I wouldn't think the pump should have a problem sucking the fuel up the puck up tube.
Cargo Master
Joined: Dec 2019
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Disconnect the line from your tank to pump and Put air to the line listen for bubbling in the tank. Its possible your flex line under the tank to cab is leaking and not allowing the prime.
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Fleet Mechanic
Joined: Feb 2019
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From: California High Desert
As it turns out it was a bad pump. Neighbor gave me an electric pump and regulator. All in and running. Fine tuning ignition and carburetor tomorrow. Once I get those $#@% doors adjusted I can put the old girl to work.
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Fleet Mechanic
Joined: Feb 2019
Posts: 1,388
Likes: 92
From: California High Desert
It was a crazy morning. Every thing I found wrong should have caused the problem. The pump has sat dry during the long build process. Our environmentaly friendly California gas doesn't help either. Pump was new six years ago but suspect a hole in diaphragm.
FTE Legend
Joined: Jun 2004
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From: Upstate NY
NY gas isn't any better! Terrible stuff.
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Fleet Mechanic
Joined: Feb 2019
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From: California High Desert
[QUOTE=spurredon;19330213]
I am having trouble adjusting the hinges. I spent two hours on passenger door. Not perfect but closes. I thought driver's would be easier. That door came off donor cab and I had left hinges on door. I thought I could put bolts where I could see marks and be done. With bolts loose door closes but won't latch. When I try to hold door in position and tighten bolts door springs open. After fighting with it several hours I took a break and went back to mechanicals.
Cargo Master
Joined: Dec 2019
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[QUOTE=JohnNewb;19330463]
Is there some nifty trick to putting the doors back on these trucks? I will be needing to remove and replace mine soon!
I am having trouble adjusting the hinges. I spent two hours on passenger door. Not perfect but closes. I thought driver's would be easier. That door came off donor cab and I had left hinges on door. I thought I could put bolts where I could see marks and be done. With bolts loose door closes but won't latch. When I try to hold door in position and tighten bolts door springs open. After fighting with it several hours I took a break and went back to mechanicals.