Yes, you can do it that way. However, do you notice any play in any of the parts that could cause the noise? It could be a few different things. A worn camshaft or even what I mentioned earlier. Check things out first to confirm something feels loose. When you do, make sure the valves for that cylinder are fully closed so there is no pressure on the rocker arm.
I attached the directions below for the removal and replacement of the rockers. The last pic is the replacement. It starts on number six because it was from camshaft replacement directions. They don't have it listed separately.
I hope this helps. Let me know if you have other questions.
See pics below.
Images (Click to enlarge)
Tuesday, April 27th, 2021 AT 7:00 PM