Havin 504 fun now. Got replacement pushrod and went to install today...no luck. I couldn"t get pushrod to go down low enough. It was about 3/4" to high, no matter where I hand the crank spun to. The intake valve spring is in open position and valve seems to be free...unless I"ve bumped my head. I compared pushrod with another rod and they were both 10 3/4" length. Is it possible the cam shaft on the #1 cylinder intake is bad...do I still have a stuck valve, and can I visually inspect cam without engine disassembly to confirm possible cam problem? This 4 cylinder engine runs good other than its only hitting on three cylinders. I"m thinking about getting a bigger hammer. Please advise and thanks.
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