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Printed from https://aircraftdirectives.com/engines/lycoming-o320-h2ad/breakdown · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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Lycoming

O-320-H2AD

Four opposed cylinders, integral rear accessory case, one dual magneto, spin-on oil filter and covered fuel-pump preparation in a fitted bare-engine exterior.

Rendered exterior of the Lycoming O-320-H2AD engine

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Model accuracy & scope

Reviewed exterior models with fitted geometry. Installed part numbers and component-level manual matching remain unverified unless explicitly identified.

  • Reviewed first exterior; dimensions, routes and materials include fitted approximations. Not exact installed OEM geometry.
  • Parts groups are a browsing aid, not an OEM exploded assembly or an installed parts catalogue.
  • Internal mechanisms, functional flow and maintenance fit are not established.
  • Six inherited propeller-flange boundary edges remain; native topology checks return exit 3.
  • Rear ignition service loops, casting and accessory shapes remain fitted and schematic.
  • Aircraft exhaust, baffles, mounting frame and external installation plumbing are omitted.

Use the applicable manufacturer manual and parts catalogue for maintenance and exact installation details.

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Manufacturer references

These references inform the model as a whole. A component is linked to a specific page or figure only when that match has been verified.

  1. Lycoming O-320 76 Series Operator Manual 60297-22

    Document host: www.lycoming.com

    OEM publication retained in model source record

    Reference pages: Printed vi, 1-1

    Typical series side and rear photographs and integral accessory-case description; not an exact installed serial or dimensional drawing.

  2. Lycoming O-320-H 76 Series Parts Catalog PC-122-H

    Document host: www.lycoming.com

    January 2013

    Reference pages: Figs 2, 8, 11, 12, 14, 15, 16, 18

    Crankcase, cylinders, intake, oil system and dual-magneto roles; not an assembly instruction or installed part-number identification.