jim3sr 2 #1 Posted December 30, 2021 I have 2 175-8 tractors,one was given to me and was used to roll a yard recently and the other bought for the plow (it doesn't run previous owner said it wasn't getting any spark)My intent is to put the plow on the running tractor and use it. Needless to say I have questions,First off the numbers off the tractors indicate a 1981(01-17k802-5601 and01-17k802-21311) 1)why does tractor data say these are 17hp 2)what is the proper air filter for the square air cleaner 3)Is the round cleaner engine have a coil and square one a magneto? 4)Are there any concerns I haven't touched on 73D8420D-39F7-43BF-88C8-EB14575FDCB9.heic F1186332-954F-4F46-9195-F5AE024E6283.heic Share this post Link to post Share on other sites
Jeff-C175 7,202 #2 Posted December 30, 2021 (edited) 48 minutes ago, jim3sr said: 1)why does tractor data say these are 17hp Because the engine is a Kohler KT-17 which is a 17 HP TWIN They should both be coil and points ignition, to my knowledge the KT17 never came with a magneto. As for the air filter, you can download the parts lists and manuals for the C-175 from the "Manuals" section for free. There were two different air filters used on these. The round one has a 'summer / winter' setup on it that prevents the carb from icing up during winter use. Don't 'lose' those mufflers if they are any good! They are made of UNOBTAINIUM ! Edited December 30, 2021 by Jeff-C175 2 Share this post Link to post Share on other sites
AMC RULES 37,132 #3 Posted December 30, 2021 (edited) 17.5hp twin, hence the KT-175 and C-175 designation. The difference in air cleaners may indicate a series1 or 2 engine. Edited December 30, 2021 by AMC RULES 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,050 #4 Posted December 30, 2021 Found this round filter is used on some of them. 7" OD x 5-1/2" ID x 1-3/4" HT Kohler 4708301, 4708301-S, 4708301-S1 with pre-filter replaced by 4788301-S1 Kohler Pre-filter 5208301-S Napa 7-02235 Stens 100-107, 055-021 Stens Pre-filter 102-335 Wix 42296 Picture https://www.partstree.com/parts/kohler-47-083-01-s/ If you post the engine spec number it may help. Share this post Link to post Share on other sites
pfrederi 17,741 #5 Posted December 30, 2021 The KT17 is listed by Kohler as 17 hp. i always the thought the 5 in 175 just indicated it was one of a C series C-85, C-105 C-125 etc to C175 3 Share this post Link to post Share on other sites
pfrederi 17,741 #6 Posted December 30, 2021 (edited) The red engine with the square filter is a Magnum 18 not original to the tractor Incidentally the heic format you used is very awkward for the nonApple world to use Spec number is an the circled plate Edited December 30, 2021 by pfrederi 2 Share this post Link to post Share on other sites
Jeff-C175 7,202 #7 Posted December 30, 2021 (edited) 2 hours ago, AMC RULES said: The difference in air cleaners may indicate a series1 or 2 engine. The 'top hat' was available for the Series 1 also. At one time it could be purchased as a 'kit' that included the heat shield with the hole in it for 'winter' use. I THINK, but haven't been able to confirm this, that the Series II engines all came with the 'top hat' air filter. One would unscrew the air filter top, clock it around and put the 'snout' over that hole to draw heated air from around the exhaust manifold rather than from the tube around the flywheel housing. The 'other' filter available on the KT17 is what I call the 'tear drop'. Edited December 30, 2021 by Jeff-C175 1 Share this post Link to post Share on other sites
Jeff-C175 7,202 #8 Posted December 30, 2021 (edited) 1 hour ago, pfrederi said: The red engine with the square filter is a Magnum 18 So it is! Good eye Paul! And this begs the question: Are the Magnums Coil and points? or Magneto? Perhaps that's why the OP is asking? Edited December 30, 2021 by Jeff-C175 Share this post Link to post Share on other sites
Maxwell-8 4,277 #9 Posted December 30, 2021 Running KT-17 here as well! Series 1 are known for being less durable when driving in hilly terrain I have one, luckily I live next to the flats lands of the Netherlands. So this part of Belgium is very flat too. 1 2 Share this post Link to post Share on other sites
pfrederi 17,741 #10 Posted December 30, 2021 Magnums are all magneto 1 1 Share this post Link to post Share on other sites
Jeff-C175 7,202 #11 Posted December 30, 2021 2 minutes ago, pfrederi said: Magnums are all magneto And that explains the plug wires exiting from the flywheel shroud: I guess the M18 would be a drop-in replacement for the KT17 then? with some minor wiring changes, notably the key switch. Share this post Link to post Share on other sites
pfrederi 17,741 #12 Posted December 30, 2021 Same engine as KT17 Series 2 but with magneto 1 Share this post Link to post Share on other sites
midpack 866 #13 Posted December 31, 2021 1 hour ago, Jeff-C175 said: And that explains the plug wires exiting from the flywheel shroud: I guess the M18 would be a drop-in replacement for the KT17 then? with some minor wiring changes, notably the key switch. I put one (Magnum 18) in a C-175 using a relay. The instructions were on the site here. Much easier than messing with key switch/adapting wiring harnesses because I did that method too. Super sweet motor 1 Share this post Link to post Share on other sites
Achto 27,609 #14 Posted December 31, 2021 4 hours ago, pfrederi said: i always the thought the 5 in 175 just indicated it was one of a C series I believe that the 5 at the end indicates the second series of "C's", AKA the black hoods. A "C" series that ends with a 1 would have the earlier style hood. ( C101, C141, etc.). 1 1 Share this post Link to post Share on other sites
Maxwell-8 4,277 #15 Posted December 31, 2021 10 hours ago, Achto said: I believe that the 5 at the end indicates the second series of "C's", AKA the black hoods. A "C" series that ends with a 1 would have the earlier style hood. ( C101, C141, etc.). And the C series ending with 0 have the gastank behind the dash and the battery on the frame. (C100, C140, etc) C1X0= 1974-1977 C1X1= 1978-1979 C1X5= 1980-1984 (apart from the C185 which used the the 5 already in 1975) 1 1 2 Share this post Link to post Share on other sites