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:
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
