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#1
10-12-2014, 06:43 PM
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Cub Cadet 129 (K301) Questions
Hello all,
As I mentioned in my "hello" post, I recently acquired a cub cadet 129 with the K301 Kohler, and while I did get the engine to run without spending any money, the machine had next to no power, and won't even reach high idle. It seemed the engine had very low compression, which I guess wasn't suprising after I took the cylinder head off on Friday, as it was leaking oil. So, I thought I would post a few pictures of where I am at as of now and see what you guys think. It looks to me that part of the piston is burned away, possibly from a fuel mixture being to lean or poor timing, and there are some more vertical wear marks in the bore as well (as well as everything just being kinda dirty). IMG_20141010_154534_699 - Copy.jpg IMG_20141010_154631_257 - Copy.jpg I guess my question is, where does a guy get an overhaul kit for one of these motors? I priced just a piston kit from kohler at $180+ and have seen "overhaul" kits (gaskets, seals, bearings, piston&pin, rings, valves, etc) for LESS than that. --ALSO, where could I find a set of lights for this cub? I've seen the 128/129's with lights and I think they look sharp! Thanks - looking forward to getting this little cub in good running condition and keep it around for another 40 years! Calvin 
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#2
10-12-2014, 07:57 PM
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So, did you do a compression check?
Where was it leaking oil? Out the head gasket? Burned piston? Over by the exhaust valve? Looks like it may have some damage there, can't tell from your pics. If so, that's pretty common. Have you ever rebuilt a motor before?
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#3
10-12-2014, 08:18 PM
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#4
10-12-2014, 08:26 PM
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#5
10-13-2014, 01:09 AM
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Thanks guys,
No, I didn't do a compression check (looking back I should have, I have a tester), but the head WAS leaking oil out the front, and when I had a machinist look at the head he said "yep, burned her out". So, I'm not sure whether that was all of my problem, but I would venture to guess it certainly didn't help the cause. I actually have rebuilt several OHV engines in my previous IH tractor restoration projects, but a little Kohler sounds like something new to tackle. Sorry about the photos being so small, I have to re-size them to post them here I guess. There is a small amount of the piston almost chipped or burned away on the side of the engine with the valves, and who knows if that damaged the rings on that side or not. There isn't a horrible ring groove worn in the bore, but I am a little more concerned with the vertical wear marks I can feel. Thanks for the links, and I'm looking forward to learning more from you guys! I appreciate it! - Calvin
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
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