First impressions of the new Zenith replacement carburetor, part number 013922, from a club member who fitted one.
Appearance
It really looks like a small Tillotson Model X. It says Zenith and “Made in USA” on one side and features multiple ways to adjust the throttle and a simple high-speed adjustment. While it does bolt right up, it may require an adapter for the fuel line: the same one used on many Tillotson carburetors to reduce the stock fitting to a smaller one. No problem; I took an adapter off an old spare Model X unit and it screwed right into the new Zenith.
Performance
My car’s idle was improved, a lot. In fact it will idle smoothly now, something it did not do before. It seems to have a little more get up and go off the line and performed about the same as my stock unit had done at high speed. The top end did improve while I was accelerating uphill. The best part about this carburetor is that it’s brand spanking new and performs well. This one’s a keeper. Overall, it performed well on the road.
New Zenith carburetor, part 013922 (1)
New Zenith carburetor, part 013922 (2)
New Zenith carburetor, part 013922 (3)
New Zenith carburetor, part 013922 (4)
See also New Zenith Carburetor Information and Zenith Replacement Carburetors.