Overhaul based on hours or years?

[plehrke]

Just doing a little light reading in Lycoming Service Instructions and read 1009BE.
How many are doing an overhaul when your engine reaches 12 years of service regardless of hours?

 

[Toobuilder]

The Lycoming in my Taylorcraft was last overhauled in 1945. Still runs great.

 

[ArlingtonRV]

A third category might be useful, something along the lines of "On Condition". My Lycoming is 23 years old with a little over 2,300 hours on it and it still runs great, has good compression, isn't making any metal and has no other symptoms that an overhaul is needed.

I do know, however, that it is closer to needing an overhaul now than it was 10 years ago, but, as the saying goes, if it ain't broke, don't fix it.

 

[Vlad]

Mine is at 2+ recommended TBO and runs like a champ Lycoming makes great motors. Really hate to remove it but the warranty for a factory new still in the box already started

 

[mike newall]

The calendar overhaul really relates to commercially operated engines. The EAB and private fraternity have always operated on condition.

Calendar and hours overhaul can all be extended in accordance with Lycoming information - depends on model spec.

 

[karu]

Mike busch has several webinars on the subject on youtube as well as on EAA webinar archives. He is a big proponent of overhauling on condition.
for example, see:
https://www.youtube.com/watch?v=RU9n7SYMOZU