I have a 67 Firebird 326 that was my dad's before he passed five years ago. I let it sit too long and need help diagnosing what is probably a simple problem. Here is what i've done and some questions I have to keep dignosing.
Appears to have an original 2bbl carb in it. When I turn the ignition, it turns but seems like it's not getting gas to the engine. So I tried starter fluid directly into the carb which gets it to fire, but as soon as that fluid is exhausted, the engine totally stops. I ordered and replaced the fuel filter from the pump and still have the same problem.
First question, seems that the back of the carb has some type of T line that I'm guessing is the fuel return line. It's coming out of the opposite side of the carb in relation to where the fuel line comes from the pump. Earlier I thought maybe it was this return line and a pressure problem because on the driver side this line was connected to another line that starts heading towards the rear tank. Am I correct about this?
I guess the second question would be to figure out if the fuel pump is bad. I did notice that on the bottom of the fuel pump there is alot of grease but I guess it could be a dirt/gas mixture. Although last fall when the car was running I didn't really smell a strong gas smell. I've watched videos on how fuel pumps work and seems that a line is coming from the tank as I'm following it along the frame underneath the car. Then I can follow the fuel line that feeds the carb.
Maybe we could start by guiding me to see if there is anything else I could test/try. Second, is there anything I can do to tell if the fuel pump is actually working? From a video i saw, since it's a mechanical fuel pump, hard to tell if the crankshaft(???) is turning the fuel pump.
Any help is appreciated.