Firewall Forward: Spark Plug Maintenance


KITPLANES editor at large Paul Dye goes into detail on how to inspect and maintain conventional aircraft spark plugs in the latest installment of Firewall Forward, sponsored by Tempest Aero Group.

This series is sponsored by Tempest Aero Group.

View the complete list of published Firewall Forward videos.


  1. It might be worth mentioning Lycoming Service Instruction 1042AH dated 4/8/20 page 2 which specifically says to use a copper based anti-seize and DO NOT (emphasis theirs) use a graphite based compound. Of course, it would be really nice to know why since previously everyone used the graphite anti-seize, including Champion and Tempest. I wonder what Lycoming knows that they don’t want to share.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.