quote:Originally posted by JTpantera:
The problem is not your fuel pump. The fuel dribbling out is indicative of a bad carb accel pump diaphram or clogged fuel passage between the pump and the shooter. Perhaps even the wrong or misaligned gasket on the fuel bowl or metering block blocking the passage had the carb been rebuilt. It is not difficult to check those possibilities.
He has as unexplained drop in float bowl level and he has a 40 year old pump.
He needs to get that sorted out first or all the stuffing around with the carb will be a total waste of time.
You must start with the basics correct eg:
clean fuel
clean fuel tank
clean fuel filters
A fuel pump that is known to deliver reliable flow and pressure
as far as i know he cant test his in any way but it would be fair to assume that a 40 year old pump will be compromised.
They dont cost much, it's time for a new one.
Then he can check there is no crap inside the carb possibly blocking passage ways and adjust his float levels to spec with some reasonable expectation that the float levels wont mysteriously vary.
The the carb tuning fun and games can begin.