Dayco PBU1116SS10 Engine Harmonic Balancer

Overview of Dayco Race Performance 10% Underdrive Harmonic Balancer

The Dayco Race Performance 10% Underdrive Engine Harmonic Balancer (PBU1116SS10) is engineered for Ford and Lincoln vehicles requiring precise crankshaft vibration control. Designed specifically for models like the Ford F-150, Mustang, and Lincoln Navigator, this balancer offers a neutral counterweight balance and a serpentine pulley system to optimize engine performance.

• Compatible with Ford and Lincoln models including F-150, Mustang, E-150, E-250, E-350 Super Duty, Expedition, Mark LT, and Navigator
• Neutral counterweight balance for consistent crankshaft vibration dampening
• 3 bolt hole configuration for secure mounting
• Steel outer ring construction for durability
• Integrated single serpentine pulley with 6 grooves
• Overall outside diameter of 6.339 inches (161.00 mm)
• Includes timing marks for accurate engine timing adjustments
• Crank bore diameter of 1.249 inches (31.71 mm)

Details on the Race Performance 10% Underdrive Product Line

The Race Performance 10% Underdrive line by Dayco focuses on delivering harmonic balancers that reduce parasitic drag by underdriving the accessory drive system by 10%. This results in improved engine efficiency and power output without compromising vibration control. The PBU1116SS10 model integrates these principles with a robust steel outer ring and a serpentine pulley designed for high-performance Ford and Lincoln engines.

Technical Description and Specifications

This harmonic balancer features a neutral counterweight balance, meaning it does not add or subtract from the crankshaft’s natural balance, ensuring smooth engine operation. The 3 bolt hole design allows for precise and secure installation on compatible crankshafts. The crank bore measures 1.249 inches (31.71 mm), fitting specific Ford and Lincoln engine configurations. The balancer includes a single serpentine pulley with 6 grooves and an outside diameter of 5.938 inches (150.8 mm), suitable for accessory belt drives. The steel outer ring enhances durability and longevity under demanding conditions. Additionally, timing marks are included to assist with accurate ignition and valve timing during engine setup.

Applications and Problem Solving

• Reduces crankshaft vibration to prevent premature engine wear
• Underdrives accessory drive to improve engine power and efficiency
• Replaces worn or damaged harmonic balancers on Ford F-150, Mustang, and Lincoln Navigator
• Supports high-performance engine builds requiring precise timing marks
• Addresses pulley wear issues with a durable steel outer ring and serpentine design

Installation Notes and Tips

• Ensure crank bore diameter matches 1.249 inches (31.71 mm) for proper fitment
• Use appropriate torque specifications for the 3 bolt holes to secure the balancer
• Verify timing marks alignment during installation for accurate engine timing
• Hardware and installation instructions are not included; consult vehicle service manual
• Inspect accessory belts and pulleys for wear when replacing the harmonic balancer

Quality Assurance and Warranty

Dayco manufactures the Race Performance 10% Underdrive harmonic balancer to meet stringent quality standards for durability and performance. The steel outer ring construction and neutral counterweight design contribute to reliable engine operation. While specific warranty details are not provided, Dayco products typically adhere to industry standards for material and workmanship quality.