1957 Tea Pot Jets | Ford Thunderbird forum club group 1955-2005 models
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1957 Tea Pot Jets

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Thunderbird Year
1957
Hi, Have Tbird E model does not have original carburetors. What size are the jets on the basic teapots?

Should I lower or raise the size of the 2 carburetors?

Mike

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The size of the primary and secondary jets on a 1957 Thunderbird with a two carburetor 312 engine depends on the carburetor number. The carburetor number is located on the back side of the carburetor on the face of the flange.

doug7740
1955 Thunderbird Blue

Identification NumberPrimary JetSecondary Jet
ECJ-D0.0520.078
ECJ-G0.0510.086
ECJ-H0.050.086
ECJ-L0.0510.086
ECJ-M0.050.086
ECJ-N0.050.073
ECJ-R0.050.073
ECJ-U0.050.073
ECJ-V0.050.073
ECJ-Y0.050.073
ECJ-Z0.050.073
ECK-C0.0530.078
ECK-D0.0520.078
ECK-G0.0510.086
ECK-H0.050.086
ECK-S0.0510.086
ECK-T0.050.086
ECZ-A0.050.073
ECZ-B0.050.073
ECZ-G0.050.073
ECZ-H0.050.073
ECZ-L0.050.073
ECZ-M0.050.073
R-1074-1A0.050.086
R-1074A.050na
R-1075-1A0.0510.086
R-1075A0.0510.086
R-1077-1A0.0550.086
R-1077A0.0550.086
R-1078A0.050.086
R-1161-1A0.050.073
R-1161A0.050.073
R-1162-1A0.050.073
R-1162-2A0.050.073
R-1162A0.050.073
R-1163-1A0.050.073
R-1163-2A0.050.073
R-1163A0.050.073
R-1164-1A0.050.073
R-1164-2A0.050.073
R-1164A0.050.073
R-1268A0.048na
R-1434A0.0450.055
R-1437A0.0450.055
R-957-1A0.0520.078
R-991-1A0.0530.078
R-997-1A0.0530.078
R-998-1A0.0520.078
 
Both carburetors take the same size main jets; 0.05 for the primary jet and 0.073 for the secondary jet.

doug7740
1955 Thunderbird Blue
 
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