As might be expected, the fuel system on this old truck was completely shot. From gas tank to carburetor.
I started with the long-lead items - carburetor and gas tank. Carb comes out with two bolts and disconnecting the linkage
Carb looks to have been through the wringer. Here is the throttle arm
This is a model NH carb made by Holley. It is one of the better carbs put on Model Ts. Also very common with new rebuild parts available. I took it up to my Model T buddy in Burien for a rebuild, and got it back with the insides all cleaned out, and with all bad parts replaced. Then it bolts back on with a new gasket, and the linkage attached
On the 1926 cars, the gas tank was in the front cowling, basically between the dash and firewall. However, on the trucks the tank lives under the seat. Here is mine, covered in a heavy layer of dust
There are two big band clamps that secure the tank to the frame, one on each end
The clamps cinch up at the bottom, and also bolt to the frame at that location
Disconnected the fuel line and unbolted the band clamps, and pulled out the old tank. Here is the top of the tank
Here is the bottom of the tank, showing the sediment bowl that is what we call a fuel filter today. It captures rust and other particulates before they go through the fuel line. I will be replacing it with a modern in-line fuel filter.
The tank had a double handful of rust sliding around inside, and one of the baffles had come loose and was banging around inside. It was beyond salvation. No sense using a rusty tank and trashing a brand new fuel system. So I ordered up a new tank and hit it with some rattle can rustoleum.
The tank has NPT (pipe) threads, which are easy to find. Here, I installed a reducer bushing and then a 1/4 NPT elbow
Then the tank gets installed, clamped and mounted to the frame.
Here you can see the steel fuel line connected to the tank, and running to the fuel filter
Here is the old fuel line plumbing. It was copper, which tends to crack over time. Steel is a better choice.
Here is the assembly consisting of shutoff valves, fuel filter and fuel pump. One shutoff is for halting gas feed to the carb, as these carbs tend to leak. The other valve is to shut off gas to enable a fuel filter change without dumping fuel all over the floor.
Here it is fully installed
Finally a line is run from the last shutoff valve to the carb
Last job was to wire up the 6V fuel pump. I found a keyed hot wire that runs to the coil, and protected by a 20A fuse.
Spliced into that and ran a wire to the positive terminal of the pump. The negative terminal is grounded to the frame.
I am now on hold for a new radiator and a hydraulic brake conversion kit. So I will knock off some small jobs and restore some vintage Model T tools while I wait.