Barry,
I forgot to mention that after I inject the after run oil (Marvel Air Tool Oil), as it displaces moisture, I plug the crankcase vent with a fuel dot to keep the air out. I also plug the carb inlet and exhaust outlet to keep any air and dirt out of the engine. If the bearings go south within the warranty period, I wanna kind of see how Horizon may try to blame this on me. To be fair here, the liner peeled on one of my OS 61 FX'S ( A Documented Problem), and Hobby Services told me that I was running the engine too lean and not using enough after run oil. They fixed that engine for free, "As a goodwill gesture to a good customer". This is not to mention that oil was leaking out of the front bearing, I was using over the recommended oil mix (20%), including 2% extra castor, running the engine on the rich side, using the recommended "Hobbico" after run oil (Imagine That), after running the engine dry after each flying session and flying it at low speeds, cause after all this engine was installed on my favorite fly and relax trainer!! Go Figure. Brian,,,