Sounds like the starter adapter is slipping, not the starter.

It could also be a bad crimp on either end of the cables between the starter and the battery.

Pete


-----Original Message-----
From: Greenbacks, UnLtd. [mailto:N4ZQ@VERIZON.NET] Sent: Sunday, December 08, 2013 7:02 AM
To: List Lancair Mailing
Subject: Sky-Tec starter

My Lycoming IO360 180hp was delivered with a Sky-Tec starter and I'm beginning to wonder about possible failure modes. Can they slowly lose their ability to produce torque over time? I had two Odyessey batteries that were at least four years old when the engine was first started and either battery would spin the prop so fast it was a blur.
Slowly over time the prop would turn over more slowly. It would not stop on the first compression stroke but would slow down significantly. The batteries tested OK but I replaced them all the same. I am still experiencing the same condition so am beginning to focus on the starter.

Suggestions?

Thanks,

Angier Ames
N4ZQ
92hrs