Small Engines (Lawn Mowers, etc.): Lawnmower, crankcase breather, vacuum test

Question
I have a Craftsman lawnmower that has a kohler engine 19 hp model number 917275180. My craftsman lawnmower was pulling oil out of the crankcase and putting it in the intake. I replaced the head gasket and mowed with it for about three weeks and the same thing is happening. Could I have a crankcase problem or is it something that I am not thinking of?

Answer
Have you went to Kohler's engine website and downloaded the engine service manual?  The service manual is free and will tell how to check the crankcase breather system and how to perform a crankcase vaccum test.  I would start with the crankcase breather and vacuum test.


Link to Kohler engine manual.
http://www.kohlerengines.com/manuals/landing.htm

Let me know the results of the crankcase vaccum test.

Eric