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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2002 Posts: 2,765 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,765 | Most carburetor bodies are basically an alloy high in zinc content.
Over time, especially under severe conditions, the zinc will oxidize and form this white powder.
Some severe conditions:
1). Sulpher based gaskets (such as both Rochester and Carter used in the 1950's).
2). Removing the greenish goldish "chromate" protective barrier from the zinc alloy when cleaning, and not replacing it.
3). use of ethanol based fuel.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
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