How To: Lycoming Piston Ring Gaps

This video is all about the basics of piston ring gap for Superior Cylinders being installed on a Lycoming O320 aircraft engine. We show you the proper procedure to check and fit the end gap of Superior-Lycoming piston rings.

These cylinders will be installed on a Lycoming O320 engine which will go in a Piper PA 18 Super Cub one of the most popular bush planes here in Alaska.

All of the information presented in the video is found directly from Superior Service Letter L04-01 "Superior PMA replacement Piston Ring gap information for Lycoming engines with choked steel or nitrided cylinder bores or chrome plated cylinder bores." This service letter can be found at:
https://www.superiorairparts.com/tech...

***this video is intended solely as an example of the piston ring fitting process. This task should be performed by a licensed professional following the manufacturers instructions.


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