Wow Showcrop man were you right about the hole isn't much bigger than the push rod itself. And If I had a new push rod on hand I defiantly would of replaced it. It was hardly bent but every time I thought it was straight and put it back in it would pop out after 4 or 5 good turns with the starter. Had to break out the dial indicator. Got it straighten enough that I could put it in a different hole and it would work fine but when I put in the hole it originally came from it still would pop out. So after walking away from it 4 or 5 times yesterday on the way n the house I gave it one more shot. I found that the valve was returning slow like maybe the valve spring was weak?? Of course I went right into the panic of the valve being slightly bent but it would always return to full closing of the valve just lazy return causing the push rod to kinda fall to the side of the hole and pop out. Used a brass small hammer and tapped on every other valve spring and all of them returned quicker than I could lift the hammer. Took off rocker assembly and used a small flat head screw driver and poked at the umbrella valve seal. It didn't seem rock hard or brittle. I used the small flat head and pried up on the valve seal and sprayed carb. cleaner and seafoam pentation oil on it and kept tapping spring. About time I was giving up for the night, just one more tap with the hammer did it. Now the spring returns as it should. The tractor is used at least a couple days a week or more. Why do you thing that valve started getting sticky? You think maybe I should put an additive in the oil to help out before I change the oil or what? Have you ever had a sticky valve show it's ugly head on a engine that is used a couple times a week? Thanks
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