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  #1  
Old 01-06-2015, 09:51 PM
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ab147 ab147 is offline
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Default 149 broken
Used the 149 all summer with the rototiller, now that summer is over I've put the snowblower on and waited till our first good snow. Well, we got it, so I got the cub running let it warm up a few minutes, opened the barn door and got about two feet out and heard a loud clunk and the engine quit. Engine turns over, can't feel anything coming from the spark plug hole, felt around the head as I was cranking, didn't feel anything,don't know what to think. Any ideas?
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147 w/mower deck, plow and rototiller owned for 22 years

149 new to me in 2010

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Old 01-06-2015, 09:54 PM
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Jeff in Pa Jeff in Pa is offline
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So no air movement out the spark plug hole ( with the plug out ) ?

That leads me to believe the connecting rod let go.
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Old 01-06-2015, 09:59 PM
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Are you sure the engine is turning over? You did break a spiral pin or the key way on the flywheel shear off? Did you crank it with the starter? Is it making any banging or anything while cranking?
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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 01-06-2015, 10:19 PM
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doesn't make a sound while turning over
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147 w/mower deck, plow and rototiller owned for 22 years

149 new to me in 2010

2 more 149's with a a42a snowblower new to me in 2011
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  #5  
Old 01-06-2015, 10:24 PM
J-Mech J-Mech is offline
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Broken rod. Bad news man..... sorry.
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Old 01-06-2015, 10:31 PM
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sounds like a broken connecting rod
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Old 01-06-2015, 10:48 PM
Bob95065 Bob95065 is offline
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I was on a 122 about 1988 or 1989 when the engine suddenly stopped. I was on level ground in 3rd gear going from one house to another in the neighborhood. I tried restarting the engine and it was turning over really fast. We towed it back and I discovered that the rod shattered into hundreds of pieces. There was no warning, there was no bang. The engine just stopped.

I rebuilt the engine and it was sold running that way.
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Old 01-06-2015, 10:49 PM
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not sure what I'm seeing down the spark plug hole but something in moving up and down. not familiar with the internals of this engine.
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147 w/mower deck, plow and rototiller owned for 22 years

149 new to me in 2010

2 more 149's with a a42a snowblower new to me in 2011
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Old 01-06-2015, 10:52 PM
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Quote:
Originally Posted by ab147 View Post
not sure what I'm seeing down the spark plug hole but something in moving up and down. not familiar with the internals of this engine.
It's one of the valves, the exhaust one I think.
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Old 01-06-2015, 10:53 PM
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Quote:
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not sure what I'm seeing down the spark plug hole but something in moving up and down. not familiar with the internals of this engine.
not sure where the spark plug hole is on a 14hp but you might be seeing the valves moving.
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