I have an '03 GK I4 5-speed with 50,100 miles on it.
Recently, I've noticed a ticking noise coming from the engine --- from what I can discern, immediately under the valve cover. Its frequency is engine-speed dependent. The noise does not disappear when clutch is disengaged (by pressing clutch pedal; this likely eliminates clutch release bearing as the cause).
I know Hyundai prescribes a valve adjustment at 60k if I am not mistaken. I've already performed a timing belt service on my GK.
How loud and pronounced can the valves be if the prescribed valve adjustment has not occurred?
I guess I'm just trying to determine what exactly is making the noise and the probability that it is the valves before I get my hands dirty.