QuestionI'm just glad I asked before I wasted a bunch of times replacing rings. Certainly would be easier to rebuild the carb first. I'll let you know how it goes.
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Thanks for the reply. I'll definitely try the carb rebuild first. I did take it apart, twice, just to make sure the needle valve was seating correctly. When I tried to get a vacuum (fancy way of sucking on the gas line) it didn't seem to be seated well. So if I follow you logically, the gas is leaking into the cylinder while it is sitting and washing out the rings? That would account for the oil being pushed out of the spark plug hole?
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Hi John, I had been asking Eric some questions regarding a Cub Cadet with a Kawasaki engine. After a lot of investigation, we found a ton of gas in the oil. It was also blowing oil out of the spark plug hole. Only one thing left to do, I imagine, replace rings. How difficult a job is this? Do you think that is the issue? I've rebuilt car engines, but I'm not real familiar with lawn mowers. Thanks in advance
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Hello Tim:
Why Replace the Rings? If the Carburetor is Flooding the Cylinder when the Engine is Not in Use, then the Gas will Naturally Leak by the Rings and Enter the Crankcase. What is the Compression? If the Compression is 70psi or Better, then Simply Clean and Rebuild the Carburetor and Install a Manual Cutoff in the Gas Line and Turn Off the Gas Flow to the Carburetor After Each Use. Once the Crankcase is Overfilled to a Certain Point Oil will Blow from Several Places Including the Spark Plug Hole. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
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Hello Tim:
I have had Many Questions about the Gas in the Oil and Where is My Gas Going. The Carburetor Needle on the Newer Carburetors of All the Engine Manufacturers are Not Seating Properly Anymore. The OEM's have Even Started Using an Electric Solenoid to Stop the Gas Flow to the Carburetor. It is Located in the Bottom of the Carburetor and when the Mower is Shutoff the Plunger Extends into the Main Jet and Stops the Carburetor from Overflowing. I don't like them Either. They have been giving People a Problem as Well. The Complaints have Been Oil Pushing Out the Spark Plug Hole and Muffler and Head Gasket. I've even had Complaints about Hydro Locked Engines with Gas still in the Cylinder. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
Answer Hello Tim:
Great!!! All the Input I can Get is Highly Appreciated. Always Glad to Save Someone Time and Money. Don't Forget to Allow the Crankcase to Breath Open to Air through the Drain Plug Hole and the Fill Cap. The Gas Vapors have been Known to Ignite if the Rings are Weak. I Usually Let the Crankcase Vent for 24 Hours and Then Replace the Drain Plug and Refill with SAE 30 Engine Oil. I'm Looking Forward to Hearing the Outcome of this Project. Thanks for the E-Mail Update. Be Safe. I am here if you Require more Assistance. Thanks.
Best Wishes and Good Luck
Respectfully
John
