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cub cadet 1440 issue

#1

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cubbrute1440

hi i have a cub cadet 1440 and I was plowing the other day and hit a block of ice. when this happen the motor lose power and wont run except for choke. In the air box their is an milky oil that spits up from the hose to the block. the carb still fills with fuel. I cleaned the carb and it still runs bad. please someone give some input could I have blown the motor or cracked the block


#2

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charlie_ope

The first thing I would check is for a sheared key on the flywheel.


#3

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cubbrute1440

fly wheel key is fine carb has been cleaned and compression is good


#4

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chance123

Check your oil for having water in it


#5

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cubbrute1440

oil is fine no water or fuel in it. I have 180 psi in both cylinders. people say there could be a bad base gasket but I don't have any oil leaking from the base. the carb was cleaned and it ran a little better. but its the low rpm that runs like crap still have oil spitting out of the breather a little. even tho I cleaned the carb could this still be causing it.


#6

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Rivets

180 psi in a small engine cylinder sounds too high to me. Check the valve clearances. Your compression release system may not be working properly, in doing so, your engine cannot breath and get enough fuel into the cylinders. Can you explain how you did the compression test. That high reading has me confused.


#7

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cubbrute1440

got a small engine compression test and cranked it over for maybe 3 or 4 seconds and both cylinders had read the same


#8

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Rivets

Did you have both spark plugs out? In my opinion, with compression that high your engine is not able to breath and cannot get enough fuel into the cylinder to give you power. That's why it will only run under choke. You've never posted the engine model numbers, but if your engine stop abruptly when you hit that ice, you may have internal damage. Another indication of a compression problem, is oil being pushed out of the crankcase through the breather.


#9

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cubbrute1440

when I was plowing it didn't stall out it just loss power and had to run on choke. I did have one plug in at a time. it will run now with out choke but on low idol is when it acts up and choke helps it out


#10

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cubbrute1440

I also checked with cub cadet and there is no base gasket theirs a crank case gasket on the front and that is fine with no leaks could I have a bad intake gasket sucking in to much air


#11

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Rivets

Yes that is just one of many possible causes. You must realize that we can't see, hear, or feel what you are describing. We can only guess as to the cause of your problem by what you tell me. You don't tell us the engine make or any numbers and we must give you general possible solutions, which you say are not the causes. Lack of power and only runs on rich mixture has many possible causes. I could spend all night trying to go through each one. We need you to give us clear information. Engine make, model and serial numbers. First you said the problem occurred when you hit a piece of ice and later you said it just started loosing power. Your compression test numbers are very high and you did the test with a plug in the opposite cylinder. That will give you any inaccurate reading. You say you have milky oil in the air box and that normally would not occur with a bad intake gasket. It can be caused by a blown head gasket if you have an OHV engine, but I don't know what engine you have. A blown head gasket could also cause the other problems you describe. I don't know what you want from us and we can't help until we get a clearer picture of your situation. You now have to help us.


#12

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cubbrute1440

well I solved it with a few cranks on the idol mixture and a new intake gasket. the motor was a 14 hp ohv twin briggs van guard. the head gaskets are fine and no more oil spitting. thanks for the help. the milky substance was found to be the gas spitting out the top of the carb due to the air from the intake. when in hit the oil in the air box it produced the milky substance


#13

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Rivets

I learned something new today, hope I can remember it. From what you posted I would have never guess that the cause would be a bad gasket. Congrats.


#14

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cubbrute1440

thank you either did I no one did


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