Answering the title of the thread: Nothing good
Got platinum plugs and NGK wires. Had no idea when previous owner did plugs or if he cheaped out, so I spent today installing them. Only to find out that A) he used the same plugs I bought - the $10/pop ones, and B) they didn't look that bad. But I continued.
The coil pack bolt on cyl #5 broke before it even started to get significantly tight. Luckily it left a piece sticking up so I could unscrew it with needle nose pliers. Otherwise, that would have been a freaking disaster. Coincidentally, a license plate bolt was the same fine threading and long enough to do the job temporarily.
Changed the oil and filter, but couldn't remember why I had always removed the skid in the past - hungover morning. "I have a fumoto drain valve on there now, no sense in removing that darn skid!" :biggrin1: Oil filter filled the skid plate. Oh yeah, that's why I always removed it in the past.
Did the deck plate mod, for no real reason aside from that I had the deck plate. Used a dremel and key saw to cut a rough circle - it was almost perfect, just a little tight. I monkey fisted the female part of the deck plate in and siliconed it good. Blew out the box with my lungs to get a bunch of dust/shavings out, and put it back in. Now the screw in part of the deck plate won't go in because of my monkey fisting :banana: Also noticed the gasket to intake manifold is split, so I electrical taped that until I can find a replacement. Great.
Lastly, I started the 4runner forgetting to put the air filter back in, so any remaining plastic dust and pieces just got sucked in to my motor. Feel like an absolute idiot, spent the better part of the day accomplishing nothing positive.