since 1940

Scuffed cylinder walls on Lycoming or Continental Aircraft Engine

2. Piston too hot. Metal transfer between the piston and cylinder wall with smearing of aluminum across the ring lands.

3. Incorrect piston or cylinder barrel size.

4. Sugar in the engine oil

5. Cold engine start combined with viscous oil.

Photograph of chrome cylinder barrel showing channel pattern. It is the channels that hold the oil and provide lubrication.

6. Abrasives in oil.

Copyright 2003 by Sacramento Sky Ranch Inc. All rights reserved.  Prices subject to change without notice. Not responsible for typographical or misprint.
Disclaimer: sacskyranch.com contains abundant information relating to aircraft maintenance. The information provided  is not intended to supercede or supplement the F.A.A. approved  maintenance and/or operator’s manuals. Those F.A.A. approved manuals must be utilized when performing maintenance and/or operating aircraft.