What's new
Van's Air Force

Don't miss anything! Register now for full access to the definitive RV support community.

CHT Sensor Dynon Thread Sealant

CHT Probes

Never have used any sealant on CHT probes. Have not seen it called for in any Lycoming or Continental service or OH manual

Don Broussard A&P/ IA etc
RV9 Rebuild in Progress
57 Pacer
 
You're not trying to seal the threads against pressure, so I would say "no". But you DO want to be able to remove the probe if and when it fails (one of mine just did after 170 hrs.). For that reason, I use nickel anti-seize on those threads. I removed my failed probe today and although tight, it came right out.
 
Back
Top