The Zenith carburetor company was large even in the earliest days. It was a very popular carburetor in both France and England for aircraft use in the earliest years. French inventor and tinkerer Francois Bavery “perfected” the Zenith design from his experiments in 1906 – 1908. His contribution was a dual jet design, with one main jet supplying the primary mixture to the throttle bore, and the other “compensator” jet being open to the atmosphere as a “compensator”, thereby offsetting the mixture as throttle position and engine speed changes. The theory is quite novel. A “cap jet” surrounds the throttle main jet, modifying both the vacuum signal and the fuel flow at various engine demands.
Zenith was never an OEM carburetor supplier for the Model T Ford. However Zenith made several accessory carburetors and carburetor / intake manifold combinations for the Model T Ford. We had a chance to rebuild one. Follow along and see how it went.Continue reading “Rebuilding the Zenith 04 Carburetor for your Model T Ford”