I'm about to send this to Airflow Performance - they did the overhaul in 2012 - but wanted to post this here first and see if anyone's seen anything like this.
Yesterday I was trying to get the mixture cable and arm linkage sorted out yesterday and pulled the servo/FAB from the bottom of the sump.
Then I noticed this:
This is a rebuilt servo that has not been run. The throttle/mixture linkages were manipulated maybe 20 times to get the cable routing figured out, but the engine has never been run (i.e. I can't imagine anything was ingested).
These gouges are deep enough to catch your fingernail. It looks like mechanical pitting vs. chemical because the anodized finish seems to be gouged away - not corroded.?
Anyway, this has me worried. If it's common and no big deal that's great, I just don't know. But if it needs to be fixed I'm wondering how/why this happened.
Chris
Yesterday I was trying to get the mixture cable and arm linkage sorted out yesterday and pulled the servo/FAB from the bottom of the sump.
Then I noticed this:
![20140216_172032.jpg](/community/proxy.php?image=https%3A%2F%2Flh5.googleusercontent.com%2F-te_BQvkiZpc%2FUwJBGsnAlfI%2FAAAAAAAADzI%2F2-SlQmm4L2g%2Fs800%2F20140216_172032.jpg&hash=f68b1db3a4acd5d3363937d0e818ae19)
This is a rebuilt servo that has not been run. The throttle/mixture linkages were manipulated maybe 20 times to get the cable routing figured out, but the engine has never been run (i.e. I can't imagine anything was ingested).
These gouges are deep enough to catch your fingernail. It looks like mechanical pitting vs. chemical because the anodized finish seems to be gouged away - not corroded.?
![20140216_172039.jpg](/community/proxy.php?image=https%3A%2F%2Flh5.googleusercontent.com%2F-u1ug3qQSzeQ%2FUwJBK4pDWlI%2FAAAAAAAADzQ%2F_fr8kCIotZ0%2Fs800%2F20140216_172039.jpg&hash=396ff72109606582463fff1ebbcb1587)
Anyway, this has me worried. If it's common and no big deal that's great, I just don't know. But if it needs to be fixed I'm wondering how/why this happened.
Chris