Understanding John Deere A Tractor Fuel Tanks - Capacity, Materials, Maintenance

Understanding the John Deere A Fuel Tank

The John Deere A tractor is a popular model that was manufactured in the 1930s and 1940s. These tractors are still widely used today due to their reliability and versatility. An important component of the John Deere A is the fuel tank which stores and provides fuel to the engine.

Purpose and Function of the Fuel Tank

The main purpose of the John Deere A fuel tank is to safely store and supply fuel, typically gasoline, to the engine. The fuel flows from the tank through fuel lines and a filter before entering the carburetor where it mixes with air. This fuel-air mixture then enters the engine cylinders to power the tractor. Some key functions of the fuel tank include:

• Fuel storage - The tank holds an adequate supply of fuel for long periods of work.
• Fuel delivery - Gravity and a low pressure fuel pump draw fuel from the tank to the carburetor.
• Cooling - Air flow around the tank helps dissipate heat from hot fuel returning from the engine.
• Venting - Vents allow air flow so a vacuum does not collapse the tank and fuel can flow freely.
• Filtration - Some fuel passes through screens or a filter to remove debris.

John Deere A Fuel Tank Capacities

The fuel tank capacity impacts how long the tractor can operate before needing to be refilled. Over the years, John Deere offered the A model with different fuel tank sizes:

• 6 gallons - Earlier A variants like the AR had a 6 gallon fuel tank
• 10 gallons - Most common size found on late A and early B models
• 17 gallons - Some models were fitted with larger 17 gallon tanks

Knowing the total tank capacity allows the owner to plan fueling stops and gauge hourly fuel consumption. A 6 gallon tank may only allow 90 to 120 minutes of continuous work before refueling.

Fuel Tank Construction and Materials

John Deere A model fuel tanks consist of metal construction utilizing various materials for durability. This includes:

• Steel or galvanized steel - Most original tanks used steel with a galvanized coating. This prevented rust formation inside the tank from contact with moisture and acids in the fuel.
• Aluminum - Some later replacement tanks used thicker gauge aluminum that resisted corrosion and oxidation.
• Soldered Seams - Earlier fuel tanks featured overlapping seams soldered together for leak resistance.
• Gaskets - Rubber gaskets sealed the mounting surfaces and openings.

Aftermarket Fuel Tank Options

When the original fuel tank wears out or develops leaks, aftermarket replacement tanks offer cost-effective repairs. These tanks retain the look of original components while providing enhanced durability. Some popular options include:

• Steel reproductions - Feature similar steel construction but with powder coating instead of galvanizing for increased longevity.
• Aluminum replacements - Lightweight non-rusting aluminum tanks with thicker metal than originals.
• Larger capacity - Some companies offer upgraded 17+ gallon tanks to extend running time.
• Diesel models - Specialized replacements for John Deere A conversions to diesel power.

Many aftermarket fuel tanks also come with new mounting hardware, fuel taps, vents, and sender units to facilitate installation.

Fuel Tank Maintenance

Proper care and maintenance of the John Deere A fuel tank helps prevent issues that could cause engine failure. Here is a checklist for fuel tank upkeep:

Rust Prevention

• Check exterior paint/coating yearly and touch up as needed
• Clean inside tank periodically by draining old fuel and rinsing
• Use fuel additives to inhibit corrosion from moisture

Leak Checks

• Inspect visible seams and connections for drips/dampness
• Check below tank mount for stains indicating small leaks
• Perform pressure test annually to check for small, slow leaks

Fuel Screen Maintenance

• Ensure fuel intake screen is clean and debris-free
• Replace screen if damaged allowing particles to bypass

Following basic fuel tank maintenance and leak checks saves money by preventing the need for a more costly replacement tank down the road.

Finding Replacement John Deere A Fuel Tanks

For those needing a new John Deere A fuel tank, many sources provide quality aftermarket replacement options. Prices can range from $100 up to $300+ depending on tank size and materials. When searching, look for key features like:

• Proper steel thickness (16 gauge or more)
• Coated/treated to resist corrosion
• Correct shape and dimensions
• Fuel tap, mounting studs, vent
• Fuel sender provision

Reputable tractor salvage yards and online vintage tractor parts retailers offer the best selection of ready-to-install fuel tanks to get your John Deere A back running again.

FAQs

What fuel tank sizes were available on the John Deere A?

John Deere offered the A model with 6 gallon, 10 gallon, and 17 gallon fuel tank options over the years.

What materials were used to construct John Deere A fuel tanks?

Most original John Deere A fuel tanks used steel construction with a galvanized coating. Some later replacement tanks used thicker aluminum material.

Where can I buy an aftermarket replacement fuel tank?

Quality replacement John Deere A fuel tanks can be found at various tractor salvage yards and online vintage tractor parts retailers.