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#1
03-18-2014, 02:30 AM
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K241 Piston question
hi guys,
My 9 year old son and I are rebuilding the k241 from our old Cub Cadet 109. In its' last days the engine had a lot of blow by and was smoking. It finally gave up the ghost and died a quiet death when I was mowing long grass up a fairly steep hill (just as I was thinking, 'wow, this thing is working great' and throttled up more...) We have the engine apart, and haven't had it to the machine shop yet for measurements. The bearings and crank seem fine, and nothing is broken, but the valves definitely need help and there is visible damage on the top / side of the piston. There is a nice ridge on the top of the cylinder, but again, no measurements yet. So my question, I have been searching around on here, and I must be blind, but I am looking for my piston size. There is an 'A' stamped on top, part number 235002. Does this indicate .010 over? I know Merk made reference to it in a post, if someone could point me in the right direction it would be much appreciated! Thanks, Mark 
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#2
03-18-2014, 08:29 AM
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Are you sure that is an A or and arrow sign. It would have a .010 stamped on the top of the piston if it were oversize. It looks to me like it ran really lean on the air/fuel mixture for a long time. Or it had the wrong heat range spark plug.
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149,682,1641,1711 with a 12hp in it 1 8" brinly plow 1 10" brinly plow 451 snow blower,H-48 International snow thrower 42" york rake with fold down grader blade.
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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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