Dead hole. What’s the next step

Rusty, you’re right. I kept it simple and tried again. If I put me ear over the dipstick tube. Like almost putting my ear in, I can hear air coming out. Guess it’s rings. Ok was hoping not since the fan moved when I first pressurized it, but If I put my ear in the breather hole I can faintly hear it too. Dang

thanks for the help all