Carlsbarn 0 #1 Posted June 29, 2011 My C-175 has Kolher twin number 12017148 24223. Is this a series 1 or 2. Just had 1 head repaired on it.( warped ) Share this post Link to post Share on other sites
c175inMA 8 #2 Posted June 29, 2011 Your engine is a series I. engens with spec numbers 34300 and above would be series II. Here is a link to the service manual for these engines. http://www.asberry.net/files/TP-2043-A.pdf Share this post Link to post Share on other sites
