Millennium Cylinder PIREPs Please

[MickYoumans]

Does anyone here have any experience with Millennium cylinders, especially for Lycomimg 320? My compressions during my last annual were all in the 70's but the time on my engine is getting on up there and I'm trying to do some planning for the future. Thanks.

 

[SoloEqs]

O-200, several hundred hours past TBO, compressions in the high 70s on my Millenniums.

 

[Ted]

My Aztec had brand new ones on its left engine. By 650 hours all 6 were failing compression.

 

[Goofy]

Do some reading/listening here:

Https://www.savvymx.com/index.php/webinar

Good stuff on cylinders and TBO, as well as how to make an engine last. All cylinder makers have issues. ECi is famous. But Lycoming and old Continental had issues too.
Good luck.

 

[MickYoumans]

Thanks for all of the information everyone. I'm off to check out your link Goofy.

 

[pilotx86]

3000 smoh on my o320 with milleniums. Never been topped, compressions 79, 79, 70, 78

I'm majoring it now due to seal leakage and will definitely replace with millenium

 

[Mike5250]

O-200, several hundred hours past TBO, compressions in the high 70s on my Millenniums.

Have you been running 100ll?

 

[ScottM]

No direct experiences with the Milleniums. A friend has him on his O-320 and has had no problems. Search on here about ECI and learn about my horror stories with them. I now have Lycomings on my engine and have not had issues since then.

 

[timwinters]

Call Seth at PAP...http://www.pap2fly.com

Talk to him about what's good and bad these days, he'll know, he's the guru of all things engines, especially cylinders.