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  #1  
Old 10-25-2016, 08:20 AM
cubcadet cubcadet is offline
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Default Stuck k341
Hey guys,
My new 169 has a stuck engine, it had plenty of oil in it, drained it out, no shavings or metal chunks, pulled the head, piston is down about an inch, cylinder looks good, no scoring, intake valve is all the way up and not stuck, exhaust valve is closed, tried turning the engine over with no luck, it's tight! Could the piston really be holding it this tight? If it isn't broken inside I'm thinking pull the rod cap and inspect everything and move rod out of the way and hit the piston down? I'll be pulling it out soon, thanks for any suggestions.
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Old 10-25-2016, 08:57 AM
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olds45512 olds45512 is offline
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Spray around the piston with pb blaster and let it soak,
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  #3  
Old 10-25-2016, 09:01 AM
cubcadet cubcadet is offline
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Spray around the piston with pb blaster and let it soak,
I have been with Kroil and MMO, may try some Diesel.
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Old 10-25-2016, 06:54 PM
cubcadet cubcadet is offline
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Pulled it apart, disconnected the rod, nothing broken or scored, crank is not moving, looks like it's time to come out and replace the bearings.
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Old 10-25-2016, 09:30 PM
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darkminion_17 darkminion_17 is offline
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Pulled it apart, disconnected the rod, nothing broken or scored, crank is not moving, looks like it's time to come out and replace the bearings.
you should pull the flywheel off and see it there is something stuck behind it,if you hadn't already done so
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Old 10-25-2016, 09:32 PM
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bocephus1991 bocephus1991 is offline
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I was wondering if it had balance gears in it?
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April 1979 1200 Quietline 44A deck 1988 1211 customized into a 1288 with a K301AQS 38C deck and a 1864 54” deck . Snow blades 42" and 54" . Brinly disk, brinly plow a cultivator and a $5 brinly yard rake!
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Old 10-25-2016, 10:14 PM
J-Mech J-Mech is offline
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Heard a story once (true) about a guy who had a motor lock up on an S-10 pickup. Undaunted, he tore it all down. About halfway though, he realized the motor wasn't stuck. He went ahead and tore it down and rebuilt it. Upon reassembly, he put it all back together, went to start it and it wouldn't turn over. Ended up removing the belt and found the alternator bearings seized tight.

Storal of the morey, check the obvious before you tear it down.... oops. Too late for that.
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Old 10-26-2016, 05:59 AM
Mike McKown Mike McKown is offline
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you should pull the flywheel off and see it there is something stuck behind it,if you hadn't already done so
I had a K series engine this summer with that problem. A guy gave me the whole 1250 tractor because the engine was locked up by a mouse nest and other stuff behind the flywheel.

Like the OP, I pulled the head, then the pan. Then my light bulb came on. A little cleanup and the engine purrs like a new one.
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Old 10-26-2016, 06:36 AM
cubcadet cubcadet is offline
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Yes it has balance gears, I know better to check the obvious, I did, checked the starter bearing, it's fine, cleaned out the mouse nest, I will be pulling the flywheel.
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Old 10-26-2016, 08:24 AM
J-Mech J-Mech is offline
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Yes it has balance gears, I know better to guess the obvious, I did, checked the starter bearing, it's fine, cleaned out the mouse nest, I will be pulling the flywheel.
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