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kohler command 18 motor issues


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7 replies to this topic

#1 Sdhdcouple OFFLINE  

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Posted April 26, 2015 - 08:13 PM

Is there anyone on the forums who works on or knows much about these Kohler command 20 motors. I have some questions about the motors.

model ch185
spec 62513

My 1st twin power kohler

#2 farmerall OFFLINE  

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Posted April 26, 2015 - 08:52 PM

I'm sure there are people here who can help you. Describe the problems you are having and some one will probably have a cure for them.



#3 dodge trucker OFFLINE  

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Posted April 26, 2015 - 09:56 PM

some issues are common to all engines whether cast or aluminum, single cylinder or twin, opposed or V twin. so please tell us what is goin on...



#4 Sdhdcouple OFFLINE  

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Posted April 26, 2015 - 10:18 PM

well I am wanting to know is, since the cranks is vented to the carb inside the filter, is if the filter being plugged up on these motors can cause the motor to suck more than normal oil thru the crank case vent? I just bought this tractor as part of a package deal. it has an issue with oil on the engine. after exploring it a little today, my thought is that the filter got plugged thus causing it to suck crank case fumes and or oil up into this carb. it runs normal for several minutes than chokes it self due to to much oil into the carb. wondering if that is possible on these motors or is there a larger problem?

thanks

#5 skyrydr2 OFFLINE  

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Posted April 27, 2015 - 03:46 AM

Most likely a blown head gasket, it was very common on the first generation commands, both vertical shaft and horizontal shaft. Remove both heads, and inspect. Glue a piece of 180 grit sand paper to a very flat and smooth surface and sand the heads flat. New head gaskets and you should be good to go.
They like to blow out right where the push rods run next to the cylinders, and thus making excess crank case preassure forcing oil into the carb/airfilter.
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#6 Sdhdcouple OFFLINE  

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Posted April 27, 2015 - 05:21 AM

thank you sir

that is what I will look into 1st, now I just need to find a parts manual for the motor and give it a go.

thanks

#7 jms180 ONLINE  

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Posted April 27, 2015 - 07:39 AM

If you have an air leak down tester it is a good tool for testing for a head gasket or bad rings. You can get a manual at the Kohler site.



#8 crittersf1 OFFLINE  

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Posted April 27, 2015 - 07:59 AM

Just had the same problem on a Briggs. Sure enough, blown head gasket.






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