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Fuel in crankcase


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#1 Gullpt OFFLINE  

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Posted August 12, 2017 - 04:50 AM

I have a Ford 120 with Kohler k301 and have been finding gas in the crankcase after the tractor has been sitting. I've been shutting off the petcock but apparently isn't holding. I never used to have to shut it off to begin with, hopefully someone here would reccomend a solution .thanks in advance!

#2 KennyP OFFLINE  

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Posted August 12, 2017 - 05:28 AM

:wave: Welcome to the forum! Sounds like the needle in the carb is not closing off. Could be the float is bad and full of fuel!


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#3 stiemmy ONLINE  

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Posted August 12, 2017 - 06:30 AM

Check the diaphragm on the fuel pump. If it is bad the fuel will pass through, and go into the crankcase.
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#4 chieffan ONLINE  

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Posted August 12, 2017 - 12:50 PM

In line fuel shut off.  Put them on everything that has an older carb on it, especially a fuel pump. 



#5 Gullpt OFFLINE  

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Posted August 12, 2017 - 05:43 PM

Thanks all for the help, I pickedup an inline shutoff today. If the fuel pump diaphragm were leaking would the tractor still run? I ask because it runs like a top. Only time fuel is found in oil is after sitting for a week or so.
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#6 jabelman OFFLINE  

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Posted August 12, 2017 - 07:22 PM

In line fuel shut off. Put them on everything that has an older carb on it, especially a fuel pump.


exactly every tractor I own I added one too, nothing worse than losing a whole tank of fuel out the carb in the shed
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#7 olds45512 ONLINE  

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Posted August 12, 2017 - 11:06 PM

It has to be the fuel pump. On a k series the intake valve is higher than the carb so it cant be a carb issue. The engine will still run ok with a bad pump but you need to install a new one, adding a fuel shut off is just a band aid.


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