Lycoming 72626 Valve Rocker Shaft is a precision-engineered engine component designed to support and align the rocker arm assembly within compatible Lycoming aircraft piston engines. The rocker shaft provides the mounting surface around which the rocker arms pivot, allowing controlled transfer of motion from the valve train to the intake and exhaust valves.

The valve rocker shaft is a critical part of the engine valve train system, ensuring accurate rocker arm movement and maintaining proper valve timing throughout engine operation. Its precise alignment helps provide consistent valve actuation, efficient combustion, and reliable engine performance.

Manufactured to Lycoming specifications, the 72626 rocker shaft is designed to withstand repeated mechanical loading, vibration, and elevated temperatures experienced during aircraft engine operation. Proper surface finish and dimensional accuracy help minimize wear between the shaft and rocker arm components.

The rocker shaft should be inspected during cylinder maintenance or engine overhaul for signs of wear, scoring, deformation, or excessive clearance. Replacing worn rocker shaft components helps restore proper valve train geometry and supports continued engine reliability.

Key Features

- Part Number: 72626
- Manufacturer: Lycoming Engines
- Component: Valve Rocker Shaft
- Supports and aligns the rocker arm assembly
- Provides a pivot surface for accurate valve train operation
- Precision-manufactured for proper fit and durability
- Designed to withstand vibration, mechanical loads, and engine temperatures
- Suitable for compatible Lycoming aircraft engines