# SDR 97ZZZX5

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N2467F](https://openairdocs.org/aircraft/N2467F), registered now
- Make and model: Cessna 180H
- Registry model: [Cessna 180H](https://openairdocs.org/model/cessna-180h) (OpenAirDocs)
- Aircraft serial: 18051699
- Engine: Cont O470L
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Valve
- Condition: Leak
- Location: Cyl Intake
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX5

## Discrepancy

CONTINENTAL CYLINDER ASSY PN 653443A13.  2 OUT OF 6 CYLINDERS HAD UNACCEPTABLE LEAKS FROM INTAKE VALVES.  ABOUT 1 DROP LIQUID SOLVENT PER MINUTE WITH VALVE SPRINGS INSTALLED.  ALSO, VALVE GUIDES ARE HOURGLASS SHAPED.  ABOUT .002 INCH SMALLER IN CENTER THAN ON ENDS.  THESE ARE ALL OEM NEW PARTS.

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