Our 1968 Ford Mustang project continues with confirmation that the fuel system has been badly contaminated with rust. The rust made the sending unit almost unrecognizable made its way through the fuel pump to the Mustang’s carburetor. Here is a photo of the fuel sending unit.
Here is the Ford carburetor before diss-assembly and cleaning.
As suspected the inside is covered in a rusty sludge. Notice the accelerator pump rubber in the upper part of the photo is stuck in the bore. Also the jets are totally plugged.
After a weekend soak in the carburetor cleaner it looks nearly new.
Now onto the fuel pump and lines. The Mustang has three rubber lines: one off the sending unit at the tank, one under the drivers floor pan, and the final one going to the pump from the drivers front fender. In 1968 these lines were up sized from 5/16″ to 3/8″. As you can see from the photo these lines have never been replaced.