Carb question

OLD REK

OLD REK

Junior Member
Can anyone tell me the difference between a #69 and #71 accelerator pump nozzle in a Holley/Ford/CG 2 bbl carb?? Thanks.
 
OLD REK said:
Can anyone tell me the difference between a #69 and #71 accelerator pump nozzle in a Holley/Ford/CG 2 bbl carb?? Thanks.
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I am not 100% sure, but I think that number stamped on the accel. pump nozzle is the diameter of the vertical approach hole, and not where the fuel actually comes out (much smaller). I have one from a 1956 ford ECG6 carburetor that is stamped 71, and the vertical hole is approx. .071" dia.
I don't have any other nozzles right now to compare and see if this is 100% true. I really don't know why this hole wouldn't be the same size on all carbs though, since it is restricted to a smaller size where it squirts into the venturi bores. Maybe my theory is off.
 
That's the best answer I've heard to this point. Thanks. The only other difference I've noted is that some have the discharge at about a 45 degree angle, while others seem to shoot the juice almost straight down, on both #69 and 71 styles.
 
OLD REK said:
That's the best answer I've heard to this point. Thanks. The only other difference I've noted is that some have the discharge at about a 45 degree angle, while others seem to shoot the juice almost straight down, on both #69 and 71 styles.
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On the carb I have the squirter holes are at a downward angle (#71). The carb is for a 1956 pass. car 272 (ECG6), with a date code of 5A3 (3rd week of Nov. 1955).
 
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