LYCOMING 76790 Engine Mounting Brackets Ears Set

( Brand: Lycoming ), ( Manufacturer Part Number: 76790 ), ( Part Type: Bracket Engine Mounting )

Review LYCOMING Engine Mounting Brackets Ears Set Of Four And

The **Lycoming 76790 Engine Mounting Brackets Ears Set** represents a critical component in the structural integrity and operational reliability of Lycoming s iconic 76790 series aircraft engines, particularly those found in classic and vintage general aviation aircraft like the Cessna 182, 185, and 195 models. Designed with precision engineering, this set of mounting bracket ears is meticulously crafted to ensure seamless integration between the engine s firewall and the aircraft s airframe, providing both stability and alignment during flight. Constructed from high-grade, heat-treated steel, these brackets are forged to withstand the rigorous demands of flight, including high vibrational forces, thermal expansion, and the constant stress of takeoff, cruising, and landing cycles. The ears feature machined mounting holes that are precisely drilled and reamed to exacting tolerances, ensuring a snug fit with the corresponding firewall and engine mounts, thereby minimizing play and maximizing durability. Their robust design not only secures the engine firmly in place but also allows for easy installation and removal, making maintenance and engine swaps more efficient. Whether used in original equipment applications or as a replacement part for overhauled or restored aircraft, this mounting bracket set is an essential component for maintaining the structural integrity and performance of the Lycoming 76790 engine. Its reliability and compatibility make it a trusted choice among aircraft mechanics, pilots, and aviation enthusiasts who demand nothing less than the highest standards of quality and precision.

### Pros and Cons of Buying a Lycoming 76790 Engine Mounting Brackets/Ears Set

1. **Compatibility and Fit:** The 76790 engine is a common powerplant in general aviation, particularly in aircraft like the Cessna 182, 195, and other models. A dedicated set of mounting brackets ensures a precise fit, reducing the risk of misalignment or structural stress during operation.

2. **Improved Structural Integrity:** Properly installed mounting brackets distribute engine weight and vibration loads evenly across the airframe. This helps prevent premature fatigue in the aircraft s fuselage or wing mounts, extending the lifespan of critical components.

3. **Easier Maintenance and Access:** Well-designed brackets allow for straightforward engine removal and installation, which is essential for routine inspections, overhauls, or repairs. Accessibility reduces downtime and labor costs.

4. **Reduced Vibration Transfer:** High-quality brackets minimize vibration transfer from the engine to the airframe, improving ride comfort and reducing wear on sensitive avionics or interior components.

5. **Compliance with Manufacturer Specifications:** Aftermarket or OEM brackets are typically engineered to meet or exceed original equipment manufacturer (OEM) standards, ensuring compliance with FAA or other regulatory requirements for airworthiness.

6. **Cost-Effective Replacement:** If the existing brackets are corroded, cracked, or worn, replacing them is far cheaper than repairing or replacing damaged airframe sections caused by improper mounting.

7. **Customization Options:** Some aftermarket sets may offer adjustments for slight modifications or upgrades, allowing for tailored fitment without extensive fabrication.

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1. **High Upfront Cost:** A new set of mounting brackets, especially if sourced from a reputable manufacturer or OEM, can be expensive. For older or less common aircraft, aftermarket options may not always be readily available or affordable.

2. **Installation Complexity:** Replacing brackets often requires dismounting the engine, which is a labor-intensive process. Improper installation such as incorrect torque values or misalignment can lead to further issues, necessitating professional installation to avoid risks.

3. **Potential for Counterfeit or Low-Quality Parts:** Purchasing from untrusted suppliers may result in substandard brackets that fail prematurely or do not meet safety standards. Always verify the source and certifications.

4. **Weight Considerations:** Some aftermarket brackets may add slight weight to the engine mount system, which while negligible in most cases could have minor implications for fuel efficiency or performance in high-performance aircraft.

5. **Compatibility Issues:** If the aircraft has been modified (e.g., wing extensions, different engine mounts, or structural reinforcements), the new brackets may not fit perfectly without additional modifications. Consulting with an aviation mechanic is advisable.

6. **Time Off the Aircraft:** The installation process typically requires several hours of work, during which the aircraft is grounded. For operators with tight schedules, this downtime can be inconvenient.

7. **Maintenance Requirements:** While brackets are durable, they may still require periodic inspections for cracks, corrosion, or loosening of bolts. Neglecting these checks could compromise safety.

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The decision to purchase a Lycoming 76790 engine mounting brackets/ears set hinges on whether the existing brackets are compromised or if an upgrade is desired for better performance or reliability. For most owners, the benefits such as improved structural integrity, easier maintenance, and compliance with safety standards outweigh the drawbacks, provided the brackets are installed correctly and sourced from a trusted supplier.

If the brackets are visibly damaged, corroded, or show signs of fatigue, replacement is strongly recommended to prevent catastrophic failure. Conversely, if the brackets are in good condition but you seek a more robust or accessible solution, the investment is justified. Always prioritize quality over cost savings, as engine mounts are critical to the aircraft s safety and airworthiness.

1. **Verify the Condition of Existing Brackets:** Have a certified aviation mechanic inspect the current brackets for cracks, corrosion, or deformation. If they meet OEM standards and are structurally sound, replacement may not be urgent.

2. **Source from a Reputable Supplier:** Purchase brackets from Lycoming-authorized dealers, reputable aftermarket manufacturers (e.g., Aircraft Spruce, Summit Aviation, or specialized engine mount suppliers), or through trusted aviation parts distributors. Avoid uncertified or unknown sources.

3. **Professional Installation:** Unless you have extensive aircraft maintenance experience, have the brackets installed by a licensed A&P mechanic. Proper torque values and alignment are critical to performance and safety.

4. **Check for Modifications:** If your aircraft has undergone structural changes, confirm that the new brackets are compatible or consult with an engineer to ensure no modifications are needed.

5. **Budget for Installation Labor:** Factor in the cost of labor for engine removal and bracket installation, as this can be a significant portion of the total expense.

6. **Document the Work:** Keep records of the installation, including part numbers, torque values, and inspection reports, to maintain airworthiness documentation.

For most owners facing worn or damaged brackets, the long-term benefits of a replacement set including safety, reliability, and ease of maintenance make it a worthwhile investment. However, always weigh the specific needs of your aircraft and consult with professionals to ensure the best decision.

Details:

Set of four 4 Lycoming engine mounts / ears. 76790 2 and 72306 One of these damn things is $800 new. In overall very good shape.

Look at the pics, what you see is get.

part #: 76790 prices

• $125.00-$999.00

specifications engineaviatio:

• brand: Lycoming
• mpn: 76790
• part type: Bracket Engine Mounting

payments engineaviatio:

• wallet: Paypal
• other
• credit card: Mastercard

seller engineaviatio:

• # reviews: 139
• city: Escondido, California
• rating: 100.0%

general engineaviatio:

• Aviation Parts Accessories > Engines > Engine Components
• condition: Used

offer engineaviatio:

• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: June 10, 2026
• best offers: True

shipping engineaviatio:

• class: Standard
• cost: $9.35
• type: Calculated
• service: USPS Ground Advantage
• transit: 5-12 Days
• carrier: USPS

returns engineaviatio:

• policy: No Returns

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