Why Valves Stick

Wed, Aug 5, 2020 7 - 8:30 p.m. CDT

Presenter: Mike Busch

Sticking and stuck exhaust valves are a frequent problem in piston aircraft engines. In early stages, it manifests itself as roughness after engine start (so-called "morning sickness"), and it can progress into something much more serious and a significant cause of power-loss incidents and accidents. Conventional wisdom says that it's caused by carbonized oil buildup due to excessive heat. In this webinar, Mike Busch explains that the real culprit is lead, not carbon, and it's actually insufficient heat that's the problem. Proper powerplant management techniques can minimize this problem, and Mike shows you how. Qualifies for FAA WINGS and AMT credit.

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