Wetwilly5757, somewhere I picked up that if the wrong size check ball is used, it can get stuck. The remedy entailed drilling some micro-sized hole and pushing the ball out with a stiff wire, then closing up the tiny hole. If you have the manual, the spec for the check ball should be there and then you can check yours with a caliper. I would check, because it is not absurd that even an experienced shop might use the wrong ball when doing a rebuild. As for those tags, it seems that few have survived over the years. Though, as Carbking says, the tags make it easy to know what you have, apparently in years past, guys did not like the appearance and tossed the darn things. Rochester did not help matters much either, imo, by putting id numbers on tags instead of a particular part. On my Roch B, I had a number stamped on every part, yet none of them turned out to be serial numbers or model numbers in several online databases. As well, as you will see from previous posts above, there are Roch B carbs that have a prominent "C" stamped on them which does not indicate the carb to be a Roch BC, the latter a different model with auto/electric choke. A thread on another site said that Rochester made over 140 'variations' of their B carb over the years. Anyway, at least when it comes to gaskets, it is easy enough to make your own. In fact, it is not exceedingly difficult to make most of the parts at home if you have a small lathe and some machinists' skills. Yep, it is a journey. -Alden
