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Discussion Starter · #1 ·
I have a 1969 falcon, 200, inline 6.

When starting from cold or after it has sat for over 4 hours, the gas in the gas line seems loose pressure/suction and drains back down the line. Typically I need to give a shot of gas in the carburetor to get it started.

Any suggestions on what the issue maybe? Is there a backflow check valve somewhere on the line that might be shot?

Thanks for any suggestions.
 

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"Seems to drain backdown the lines." Is that an assumption or a fact? Either way, there should be enough fuel left in the carb to start it. My best guesses are:
1. accellerator pump shot. Does it squirt when you pump it? (You are giving the throttle pedal a pump when you start it from cold, Right?)
2. choke not working. Is it closed when the car is cold?
3. carb leaking internally.
4. fuel is vaporizing out the bowl vent. Check bowl vent, if so equipped. Make sure carb isn't getting too much heat from the engine and has a thick enough base gasket
to isolate it from engine heat.
 
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