fits year: 1990.

( Brand: Franklin ), ( Manufacturer Part Number: 4AC-199-90HP ), ( Part Type: Hp Gear Case ), ( Country/region Of Manufacture: United States )
The Franklin 4AC Crankcase Gear, model number 90HP 199, is a high-quality replacement part designed for Franklin 4-cylinder aircraft engines. This crankcase gear is a critical component in the engine's operation, responsible for transferring power from the crankshaft to the propeller through the reduction gearbox.
The Franklin 4AC Crankcase Gear 90HP 199 is made from durable materials, ensuring long-lasting performance and reliability even in the most demanding flight conditions. The gear teeth are precision-machined, ensuring they mesh smoothly and efficiently, reducing wear and maintaining engine balance.
The gear is designed to fit perfectly into the engine's crankcase, ensuring a secure and tight fit. The high-quality finish of the gear not only enhances its aesthetic appeal but also prevents corrosion and extends the gear's lifespan.
The Franklin 4AC Crankcase Gear 90HP 199 is a direct replacement for the original part, ensuring a seamless installation process. It comes with detailed installation instructions, making it easy for anyone to replace the part, even without extensive mechanical knowledge.
In conclusion, the Franklin 4AC Crankcase Gear 90HP 199 is a reliable and durable replacement part for your Franklin 4-cylinder aircraft engine. Its precision-machined teeth, durable materials, and secure fit ensure efficient operation and extended lifespan. Whether you're a seasoned mechanic or a home enthusiast, this gear is an excellent choice for keeping your engine in top shape.
Pros of buying Franklin Aircraft Crankcase Gear 4AC 90 HP:1. Reliability: Franklin engines are known for their durability and longevity in the aviation industry. The 4AC model has a reputation for being a robust and reliable engine.
2. Power: With 90 HP, the engine provides sufficient power for many light aircraft.
3. Easy Maintenance: The Franklin 4AC is known for its ease of maintenance due to its simple design and readily available parts.
4. Availability of Spare Parts: Due to its long-term popularity, spare parts for the Franklin 4AC are widely available, making it easier and less expensive to repair or maintain.
5. Long Service Life: Franklin engines are known for their long service life, which can save you money in the long run.
Cons of buying Franklin Aircraft Crankcase Gear 4AC 90 HP:1. Weight: Compared to more modern engines, the Franklin 4AC is heavier, which can affect the overall performance and fuel efficiency of the aircraft.
2. Fuel Consumption: The Franklin 4AC has a higher fuel consumption rate than more modern engines.
3. Complexity of Installation: Due to its size and weight, the installation of a Franklin 4AC engine can be more complex than installing a smaller, lighter engine.
4. Limited Fuel Options: The Franklin 4AC requires 100LL aviation gasoline, which may not be readily available in some regions.
Conclusion:The Franklin Aircraft Crankcase Gear 4AC 90 HP is a reliable and powerful engine with a long service life. Its simplicity and availability of spare parts make it a favorable choice for many aviators. However, its weight and higher fuel consumption rate may be a drawback for some. If you value reliability and don't mind a slightly higher fuel consumption rate, the Franklin 4AC is a solid choice. If weight and fuel efficiency are more important to you, you might want to consider a more modern engine.
Recommendation:If you are looking for a reliable and powerful engine with a long service life and easy maintenance, the Franklin Aircraft Crankcase Gear 4AC 90 HP is a good choice. Its availability of spare parts and simplicity make it a practical choice for many light aircraft. However, consider the weight and higher fuel consumption rate before making a decision.
1 compression ratio, at 2500 rpm,80 obtain fuel the crankcase part number is gear cases are10123 and these parts look good but there no warranty are as. This is a set of crankcases for 4ac Franklin aircraft engine and inner outer gear cases-199 cubic inches,90 hp,7.