CARTER CARBURETOR METERING JET
Carter carburettor main metering jet
Main metering jet
Main metering jet for the Carter WO carburettor. This precisely calibrated jet regulates the main fuel flow in the carburettor circuit and is essential for correct fuel mixture at higher engine speeds.
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Part Main metering jet |
Carburettor Carter WO |
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Part number CAR-120-151S |
Specification Standard bore.070" (1.78 mm) |
Features
- Replacement for original Carter 120-151S jet
- Precisely calibrated bore for optimal fuel flow
- Essential component for carburettor overhaul
- Replace when worn or incorrectly adjusted
- Suitable for use with metering rod
★ Precisely manufactured metering jet to original Carter specifications. When replacing the jet, the metering rod must always be readjusted using the correct Carter T-109-26 gauge.
Application
For Carter WO carburettors as used on vehicles with the L-134 Go Devil engine. The Carter WO was fitted to several military and civilian vehicles from the 1940s and early 1950s. 070" standard jet is the original size, although adjustments may be necessary depending on altitude, fuel type and engine condition.
Installation notes
The jet is located beneath the air horn of the carburettor. When replacing: remove old jet, clean opening, install new jet with correct torque (firm but not forced). CRITICAL: after replacing the jet, the metering rod must always be readjusted using gauge T-109-26. Also check the accelerator pump stroke before adjusting the metering rod.
Compatibility
Fits Carter WO (Model WO) carburettors. Note: jet size may vary depending on application and modifications. Standard.070" bore is original for most applications. Larger jets (.078" or more) are sometimes used with higher compression, larger bore or use at altitude. Smaller jets lean the mixture, larger jets richen it. If in doubt: measure the old jet with precision measuring equipment.
Historical context
The Carter WO carburettor was the standard carburettor on WWII military jeeps and many civilian Willys models from the 1940s. The metering jet, together with the vacuum-operated metering rod, determines the fuel mixture under different operating conditions.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
ALL_CATEGORIES : Carter - CJ2A, Carter - CJ3A, Carter M38, Carter - CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Ford GPW (early) | 1942 |
| Ford GPW | 1942, 1943, 1944, 1945 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
