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Lycoming Home > Engines
Lycoming 540 cubic inch series
This beast handles any burden.
The Lycoming O-540 series engines are six-cylinder, direct-drive, horizontally opposed, air-cooled models. The cylinders are of conventional air-cooled construction with heads made from an aluminum-alloy casting and a fully machined combustion chamber. Rocker-shaft bearing supports are cast integral with the head, along with housings to form the rocker boxes. The cylinder barrels have deep integral cooling fins, and the inside of the barrels are ground and honed to a specified finish. The IO-540 and TIO-540 (turbocharged) series engines are equipped with a fuel-injection system, which schedules fuel flow in proportion to airflow. Fuel vaporization takes place at the intake ports. A turbocharger is mounted as an integral part of the TIO-540 series. Automatic waste-gate control of the turbocharger provides constant air density to the fuel- injector inlet from sea level to critical altitude.
FORGED-STEEL CONNECTING RODS
OPTIONAL CHROME KIT
NITRIDE-HARDENED STEEL ALLOY CYLINDER BARRELS
FORGED-STEEL CRANKSHAFTS
CHROMIUM-MODIFIED NI-RESIST IRON EXHAUST-VALVE GUIDES, RESULTING IN BETTER WEAR CHARACTERISTICS
FORGED-STEEL CAMSHAFTS
AVAILABLE OPTIONS:
- Lightweight starters
- Electronic ignition
- Spin-on or remote oil filter
- Air conditioning provisions
- Factory chrome kits:
- Triple-plated rocker-box covers, intake pipes and shroud tubes
- Optional magnetos
- Fixed-pitch or constant-speed propeller applications
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