Hartzell issued service bulletin HC-SB-61-365 in May 2015. This bulletin affects the above mentioned governors. It addresses leaking control shaft o-rings on pre May 2015 models. At 60 hours Total time, I chased an engine oil leak for about 25 hours before it became obvious it was coming from the S-1. Hartzell replaced the o-ring but the turn time was over three weeks. I could not find this service bulletin on the Hartzell website. Had to call Hartzell tech support to get a PDF file. I would post it here if I knew how.
Pm me if you need a copy.
Ariel
Rv 8 in So Cal.
Pm me if you need a copy.Ariel
Rv 8 in So Cal.
