[miura]

Hi metal finishers, i am looking for help in restoring some 60's era Weber carbs. here is a photo of a 40 IDL 3C3 outboard throat, from the bottom, showing 2 items i would like to discuss.
#1 Weber cast body section metal finish - the web area appears pretty virgin on this 40 year old, minimal miles Weber 40IDL. The finish in the web area will of course show differently to everyones monitor, but the finish intensity certainly is visable. It appears to me to be a very slight beige finish. But not just plain alloy aluminum silver. The baked, olive oil story from Pierce Weber i am having trouble with altho certainly colorful and very Italian.
#2 Weber throttle shaft - black oxide finish, indicating steel
Not shown in this photo - some of the linkage bellcranks and all the square throttle pump body section and throttle pump cap appear to yellow zinc plated. The original cast body pieces finish appears to me to be a finish i have seen for the past 40 years on some new carb castings of any and all brands (altho i cant quote a one right now). also seems similar to some motorcycle engine case finshes, some hydraulic equipment, some aircraft pnuematic and hydraulic pieces,
anybody know anything about this beige, cast body finish?
i have read the past posts about alodine and yellow zinc plating and they dont answer this finish.
thanks
Craig