As I mentioned in that post, In late 2010, the alternator vendor made several changes. Those were all implemented in the 'k' (2011) date code alternators. Those alternators hit our factory floor and field replacements in the march time frame.
About a month ago, we went through the data, and to date we have had 3 failures of these new 'k' alternators. The picture shown is a graph of serial number versus hours for the SR22 (SR22T is graphed separately). The vertical line on the graph shows where the new alternators were implemented into the line.
This is a VAST improvement over previous model years, and reason for continued optimism that we might be on to a solution.
As I also mentioned in that post, there are 2 additional improvements coming. The new rotor bonding process is now online and those parts are now being produced. The new diode is scheduled to be in place in a couple of months. We will continue to monitor the reliability of these parts, and keep you updated.
