Timing belt master thread/sticky?

Next month I'll be due for my second timing belt replacement - I replaced it last in June '16 at 168k, currently at 180k (yes, 12k miles in 9 years). I'm pondering two things:
- Radiator was replaced with Denso at last timing belt change. Should I replace it again? It still looks like new.
- If the cam and crank seals aren't leaking, replace them or leave them alone?

 

If it were me, I'd probably roll a full 10yrs on the belt, but I'd inspect it for sure.

If you're in there, I'd do the cam and crank seals.

I wouldn't replace the radiator, 12k miles on a radiator to replace it seems silly.

 

I'm gonna hit 9 years next April but I'm nowhere close to 90k miles. I'm considering pushing the belt to 10 years. I looked at it when I replaced my alternator and it still looked good.

 

I still have the belt I replaced 9 years ago and even that looks good still, though sitting in a drawer isn't terribly demanding of it.

Replacing per schedule it gives me peace of mind when I'm sitting at 4k rpms pulling the camper up a long hill

 

My general rule of thumb on every vehicle I've owned prior with timing belt is 100k miles.

I get that Toyota says 9yr/90k, but I don't feel like 10yr/100k miles is pushing it if you use OEM parts, and are replacing the tensioner and pulleys Aisin includes in their kit, along with the water pump and t-stat.

 

Definitely, as long as you know for sure when the belt was last done and inspect it at the 9yr/90k mark.
That said, in the long run it doesn't really save any money or work to do it at 9/90 vs 10/100.

 

Putting this here in case anyone else thinks 'I don't need the crank pulley holder tool 'cause I have an impact', and then gets to reinstalling the crank pulley and has second thoughts about snugging it down with an impact rather than torquing to spec.
I wish I remembered how I did this last time, I don't own the tool (ordered one but it didn't show up in time) and I don't remember renting one...
Anyway, take an old serpentine belt (must be old, it will be ruined) and wrap it around the crank pulley, then use a large pry bar to hold it against the crossmember.
I don't think this will work for loosening the bolt, you can really feel the belt stretch and it's a tad sketchy, but it works.

 

I used same technique to torque the harmonic balancer on my daughter Escape. Old belt is going in trash anyway.

 

Hi all - about to dig into replacing timing belt/water pump/radiator this weekend. I've watched and read all I can find but still nervous on the timing belt. On The Car Care Nut's video he shows the arrow on the crank but (call me crazy) that arrow is not lined up with the dot! What happens if the arrow is pointing at the tooth to the right of the dot? Total meltdown?? I need some encouragement!

ATTACH=full]1124753[/ATTACH]

 

Shows the marks pretty well.
The Aisin kit will have some instructions, just make sure your looking at right one.
https://youtu.be/Z46cM-Bw1rI?si=kb6MU-VDRah-6pUc

 

I find this is probably one of the best sources on the internet for understanding 2UZ timing marks, kudos to @BubbaW for his original share of this one: https://www.toyoheadquarters.com/threads/toyota-2uz-fe-timing-belt-marks-4-7l.335/