More engine noises

This is your 5VZ

So they are call Driven gear and Sub gear

 

This was procedure that someone explained to me

 

I’m interested if another more seasoned member could possibly confirm/deny that this could be the whine your hearing

 

Ah, yeah. I definitely don’t have the tools or expertise for that. Although it doesn’t look like the head needs to come off like I thought, but still. It looks like there’s a lot of room for error there.

 

Well doktor
If u can do T belt job…..you could do this!

At very least, once 5VZ expert chimes in,
You have better idea of issue…..
You don’t have to stress about some shop saying $7k will fix that problem
GL

 

lol I mean I probably COULD, I’ve rebuilt an engine before so I’m sure I could figure it out. It’s more about the time and resources I guess, she’s my daily so having it down for more than a day is tough.

Anyway, thank you for the info and digging up those docs. Definitely helps me understand what’s going on with those gears. I am *pretty* certain that’s where the noise is coming from. I took the stethoscope to every single component of that engine, and it’s loudest on the passenger valve cover right above those gears. If it were anything else I’d be shocked at this point.