VCCA Home Forums Thread Like Summary - Carter W-1 calibration

Just received a PM from a member concerning using a 1946~48 W-1 on a 1932 engine, and wondering about calibration changes. Thought there might be interest from others, so started this thread.

In 1946, Carter released W-1 number 569s as a service replacement for all Chevrolet passenger carbs 1932~1936.

For all practical purposes, Carter took a production 574s (1946~1948 Chevrolet 216 passenger), and grafted onto this carburetor a flat throttle arm like was used on the 1932~1936 carbs. The calibrations are the same.

So if an enthusiast has a junk 1932~1936 W-1, the enthusiast could acquire a rebuildable 574s, and while the carb was apart for rebuilding, affix the throttle arm from the junk 1932~1936 carb; and have arguably the finest available carburetor for a 1932~1936 DRIVER (not a numbers-matching show car).

Jon.

Ariel - my GUESS is that the 569s will run better than the 284s for a couple of reasons: (1) the technology was significantly more advanced with the 569s, and (2) no offense meant to the rebuilder, but the 284s generally requires machine work to get back to its best state.

As to installing a new old stock carburetor?

Carter used velumoid gasket material (which shrinks over time) for the bowl cover gaskets.

Also, while I am not familiar with the arachnid population in Israel, here in Missouri USA we have lots of small spiders that just love to crawl into small places (like carburetor passages) and make nests. Compressed air through the passages is a good idea. When we sell a new old stock carburetor, we include a set of gaskets in case the customer should need them.

Jon.