Now back to the W-1 and this article. It has helped in Id’ing the model in general. From the information that I’ve been able to gather here on the W-1, at this time I believe I have one of the dreaded 684’s, because it has the throttle to choke fast idle link on it and it also has the Capital ‘C’ cast into the bowl so it is a Chevrolet made (Bay City?) unit, is that correct? Jon, at the beginning of this article you mentioned that the W-1 was produced in 128 different versions for use by many different manufacturers. With out a tag it’s difficult or next to impossible for the individual to determine exactly which model that he has. How many of these 128 models were produced and/or used on the Chevrolet? If one goes by the chronology and photos that you provided the field is narrowed down considerably, in fact if I read it correctly, it sounds like the 684 stands out all by it self on the 1949, 216 Chevy’s, is that right? Were there any other versions that used the fast idle link during this period?
After a couple of weeks of soaking with “Don’t Spoil it, Kroil it” and a little carfully placed heat from the Smith Mini torch at the throttle shaft bosses, the throttle shaft finally started to break loose. More Kroil and a little polishing of the exposed portions with some Norton 320 cloth and the throttle shaft finally slid out. Because of the condition of the out side, I’m kind of afraid to open up the bowl and look inside. But after all, I suppose that’s what restoration is all about?
Jon as far as the homework, I have the Chevrolet Truck shop manual 1948-1951 and it gives a pretty good break down of the carburetor and then circuits. The only “carburetor special tool” that looks like one could not fabricate from dimensions taken from the carb itself is the T-109-25 metering rod gauge. Do you think you could explain the use of this and how someone could determine the dimensions and is it absolutely nessacary to the adjustment of this carb? How would one get the “parts and service pages from a Carter Master Manual” with out searching for years? From what I gather you hold the patent rights to these, do you offer reprints of them?
You also mention the fact that the many of the parts are virtually unique to the 684, and I’ve been hearing this for most of the past year in threads discussing the 1949 model 684, specifically which parts would these be?
Thanks for the lesson, I’m trying to do my homework but the more I work on it the more questions pop into me head.
Denny Graham
Sandwich, IL
