jd 345 with Kaw 18hp puking oil sometimes

[Billy Bee]

1997 jd with liquid cooled kawasaki puked oil 3 different time this summer. The first time after I shut it off in the barn, the second time after idling down headed to the barn, this last time when I got off after mowing and left it running for a couple minutes before putting away. The first two times it didn't lose much, the last time it took a half quart to refill. I did not overfill the crankcase. I think it it must be a plugged crankcase vent, if so where is it, how to unplug it. I do not have a manual for it.
Thanks for your help,
Bill

 

[oldnslo]

On most small engines there is a hose or tube that goes from crankcase to carb inlet. That is the crankcase vent.

 

[beenthere]

Get the model number off the Kawasaki and search the internet for the engine manual. Should be easy to find. Post here if you want more help.

Good luck finding the cause. And hope you let us know what it was.

 

[LukeL]

Where’s it coming from? The fill cap?

 

[Billy Bee]

Where’s it coming from? The fill cap?

I think so, haven't seen it while it is doing it

 

[ruffdog]

It has to be burning the oil or leaking it on the ground.

 

[Billy Bee]

It has to be burning the oil or leaking it on the ground.

No smoke while operating, puddle underneath the fill cap. Fill cap is tight. Mowed for 45 min. yesterday no problems, I mow 2 or 3 times a week and it has only done it 3 times all summer. Going to do a search for the crankcase vent this week, don't think it goes to the carb inlet as there is no oil in the breather area. Going to take Beenthere's advice and look up that engine.
Thanks,
Bill

 

[ruffdog]

When they start puking oil, it is a fire hazard. There are many stories about them burning up and info on the breather:

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