So I have been steadily ignoring this subtle clicking noise coming from my engine. It has gotten to the annoying stage and is making me worry a lot that something is very wrong. I have been told that it is my rocker pads possibly or my lifter assembly by random Joe's hearing my disco. My mechanic told me a few weeks back that it might possibly be my cam shaft liner as well. I can take things apart and put them back together pretty successfully and I didn't know if this would be an at-home job.