The Ford Barn

shew01 · 01-23-2021, 08:04 AM

Dirty carburetors tend to be a frequent theme on this site. Many folks post about cleaning them out to get better performance.

I remember in the late 1970s and 1980s, Citgo gas tended to plug up carburetors in my area. (I’d have to use aerosol carb cleaner to cure hesitation in my cars back then fairly frequently. I switched to BP and Exxon, and I stopped having that particular problem so often. If I recall correctly, I think these are called top tier brands and are supposed to keep the carburetor cleaner.)

Murphy (at our Walmart gas station) sells ethanol free gas, and I always add Marvel Mystery Oil when I fill up. So far, I’ve had my Model a for about a year and a half, and I don’t seem to have any carburetor issues.

I suppose not having an air filter would allow the carb to suck up more dirt. (I know there has been a lot written about the virtues and perils of running or not running an air filter.)

Was a dirty carburetor a common issue in the 1930s and 1940s?

Have you noticed one brand or type of gas causing more issues than another?

What are some ways to keep carburetors from getting dirty in the first place?

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01-23-2021, 08:04 AM	#1
shew01 Senior Member Join Date: Sep 2016 Location: Roanoke, VA USA Posts: 1,908	Dirty Carburetors Dirty carburetors tend to be a frequent theme on this site. Many folks post about cleaning them out to get better performance. I remember in the late 1970s and 1980s, Citgo gas tended to plug up carburetors in my area. (I’d have to use aerosol carb cleaner to cure hesitation in my cars back then fairly frequently. I switched to BP and Exxon, and I stopped having that particular problem so often. If I recall correctly, I think these are called top tier brands and are supposed to keep the carburetor cleaner.) Murphy (at our Walmart gas station) sells ethanol free gas, and I always add Marvel Mystery Oil when I fill up. So far, I’ve had my Model a for about a year and a half, and I don’t seem to have any carburetor issues. I suppose not having an air filter would allow the carb to suck up more dirt. (I know there has been a lot written about the virtues and perils of running or not running an air filter.) Was a dirty carburetor a common issue in the 1930s and 1940s? Have you noticed one brand or type of gas causing more issues than another? What are some ways to keep carburetors from getting dirty in the first place? Sent from my iPhone using Tapatalk