Hey Yota Tech, back with another question. My engine has been making a clicking noise in sync with the rpms (faster, more frequent ticks with higher rpms, less ticks at idle). I thought it would be a valve lifter or clearance issue, but a search of youtube, I can't find much for a tear down and check procedure. Before I opened her up and took a peek on my own, I thought I'd ask here and see what anyone else might suggest, or recomend.

TL;DR, engine ticking in sync with rpms. Suspect valve troubles on driver side. Any guides, or suggestions?

 

Also, I'm pretty sure the previous owner let the oil run low, and blew the head gasket. I find oil, and coolant dried up on the undercarriage when I'm down there. Also, u suspect the brake booster is bad and I've got the tachometer /odo failure. Not sure if anything is related, I doubt it, but just in case.