snowhound 103 #1 Posted April 16, 2017 I'm going to look at a C172 twin hydro is there anything I should be looking out for? I don't know what year it is but will find out when I look at it if the tag is still there. Ed 1 Share this post Link to post Share on other sites
pfrederi 17,116 #2 Posted April 16, 2017 Depending on year C175 may have a series 1 or Series 2 KT 17. The series 1 has a weak lubrication system and many of them threw rods. Series 2 are excellent engines. Series 1 can be OK If you keep them topped up with oil (maybe a bit overfull) and avoid running on steep grades 24300 and higher spec numbers are Series 2 As with any hydro get it warmed up put it against an immovable object and see if she will spin her rear wheels 6 Share this post Link to post Share on other sites
JERSEYHAWG / Glenn 4,487 #3 Posted April 16, 2017 best of luck, my C-175 is a series 1. follow the advice above its a wonderfill machine. warm it up, take it for a spin. Glenn 1 Share this post Link to post Share on other sites
snowhound 103 #4 Posted April 22, 2017 Thanks for the replies the owner says it is 417-A so from what I have found on line it should be a series 2 Share this post Link to post Share on other sites
