Noise from motor on first day of install
For me, I heard this clicking and it turns out when I would put my finger on the rocker and have someone turn the motor over, I could feel the rocker pop (click) every revolution
My lifter had spun!
But that is the worse case, it could be spring, valve, pushrod, etc...yeah have someone who knows their **** look it over...
In an earlier reply further up, I've already stated that the camshaft is least
likely to be at fault.
I'm thinking valvetrain - specifically pre-load/lash.
Cheers.

