chronicles the restoration of my 1968 Datsun 2000 Roadster.
This morning I removed the hard fuel lines from the frame. I need to strip the frame down in order to clean it up and paint it.
There were two fuel lines that run from the gas tank up to the right side of the engine bay, where soft lines run over towards the carburetors. The smaller (in diameter) of the two lines is the fuel supply line and the fatter one is the fuel return line. Each of the two lines were in two sections, a short section in the front that ran up into the engine bay and a longer straight section that ran back along the frame and curved over and connected to the fuel tank at the rear of the car.
I began by removing the soft line from the front end of the fuel supply line. There was a whole assembly with a fuel filter and fuel pressure adjustment guage that I removed.
Below is a shot of the front sections of the fuel lines. I first removed the front portion of the fuel supply line. The front and rear sections of fuel line were coupled together. To loosen the couplings I used a 1/2" wrench to hold the center section of the coupling and a 9/16" wrench to loosen the coupling itself.
With the fuel supply front section freed up, I disconnected the front section of the fuel return line in the same manner. The fule return line was located just below the fuel supply line. I used a 1/2" wrench again on the middle section of the coupling, and a 5/8" wrench on the coupling collar.
This allowed me to remove those front sections of fuel line and start working on removing the rear sections. There was some fuel left in the lines which began to pour out when I started tipping the lines. I caught it in a cup--more fuel for the lawn mower!
The straight sections of the fuel lines were held to the frame by several tabs, which I bent down to free up the lines using a flat-head screwdriver. Above the rear wheels there was a
lot of grit built up on the frame over the fuel lines.
You can see where the fuel lines curve around and meet the fuel tank behind the rear axle.
With all of the frame tabs loosened I then pulled the fuel lines back towards the rear of the car, removing them from the frame. I had to work the portions that attach to the gas tank over towards the outside of the frame in order to pull the lines off the frame. There was enough flexibility in the lines to work them off the frame in one piece.