Straight From the Horse's Mouth - The final chapter

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Jakeshorsetuff

why does breather on kohler k181s

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HI I have a k181s engine that leaks oil out of the breather and it has a new gasket can anyone suggest any solutions of what to do?

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Is the weep hole on the bottom...it has to be to work right.  Notice the little hole on the bottom side.  If that hole is toward the top...it is your problem.  :)

 

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Have you taken the breather valve apart, cleaned all parts, and reassembled properly?    Garrys link shows this process.

Edited by Ed Kennell
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I took the breather apart and there was a line of oil under the weep hole is this normal?

Edited by Jakeshorsetuff

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Low compression can cause oil to come out the breather. You can add better filter inside to help keep the oil inside the crank case.

Edited by slammer302

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6 hours ago, stevasaurus said:

@slammer302  Where would one get that better filter?? :)

I make my own out of scotch bright pads.

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I just went through this with a k161 on my old tiller. Had no problems with oil leakage from the breather until I changed the oil. Everything with the breather assembly was correct. Turns out that I had overfilled it with oil. I discovered this after looking up the oil capacity in the Kohler manual, then draining and measuring how much I had added. My engine does not have a dipstick, just a fill plug. Apparently if you fill to the bottom of the fill plug, its overfilled. I forget the amount of oil the manual calls for, but after measuring that amount and adding it to the crankcase, the leak went away. Good luck. 

Mark. 

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Double check this. The Kohler manual says 2.5 pints (1.2 liters) of oil. I suggest draining and measuring how much is in there. It's probably overfilled. If I remember correctly, the full oil level is not above the oil pan gasket. Someone please correct me if I'm wrong. Thanks. 

Mark. 

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