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#1
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3240 engine problem
Recently my CCC 3240 would backfire when I shut it down, ( I do throttle down before I turn it off); anyway I was mowing the other day for several hours and all of a sudden it just quit, I believe I heard a pop when that happened. I can't get it started, could I have a bent engine valve ? cannot see anything wrong, no oil, or crack in the engine block.
C&O2-10-4 |
#2
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We can't see inside your engine.
Engines need 3 things to run: fuel, air, and ignition. Figure out which one of the 3 it isn't getting. |
#3
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Dont forget compression! Won't run without that
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Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641 |
#4
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That goes in with air.
If the piston isn't moving, no air. If a valve is stuck open, or isn't opening, it isn't getting air. Hard to think a running engine suddenly wore out the rings, or a valve isn't sealing good. An engine will run with very, very low compression. Just not well. |
#5
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Quote:
Air is not compression.
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Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641 |
#6
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Tell grain elevator operators you need compression for dust to explode. Gasoline vapor doesn't need compression to burn.
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Richard 1979 IH Cub Cadet 782 w/CH20, dual hydraulics, power steering and Cat 0 three point |
#7
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You can't have compression without air.
Fuel will burn without compression. Just won't make any power. |
#8
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Quote:
In my 50 plus years working on engines I never heard there was 4 things needed to make an engine run. All my teaching manuals never said there was 4 things to keep an engine running. I've learned, I've taught anyone who wanted to learn, was an Ohio State Fair small engine judge for years. I do seminars at 2-3 different tractor shows every year. Expert I'm not....still learning.... I used to train local Vo-ag kids to compete in a local small engine trouble shooting contest. They had 6-8 different stations where the ag students had to answer questions or the best one was trouble shoot an engine. They had to fix 3 different things in 30 minutes. One of the best one was putting tape around the air filter and putting pre cleaner on so it didn't show the tap. Someone posted that air is ambient or always around. In this case air wasn't ambient or always around. Remove the tape from the air filter and the engine ran. What was simulated was a plug air filter. My current job is trying to keep 50 golf carts and 20 grounds keeping machines running at a local golf course.
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Project Uncle Dick Cub Cadet 70 http://www.onlycubcadets.net/forum/s...ght=Uncle+Dick |
#9
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Quote:
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#10
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Quote:
In my 30 plus years as a mechanic... I have never had a car , truck, tractor, or any piece of equipment come in with tape hidden around the air filter. I have worked on all of the above with dirty air cleaners. They all ran poorly and rich but they all ran. I have never had a engine not run at all due to dirty air filter and unless you work in extremely high dust environment or severe duty atmosphere all the time I doubt anyone else here has either.
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Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641 |
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