Gen 3 Prius timing

I’m replacing my headgasket. And I’m
Just at about the removing of the timing cover. Valve cover. Etc etc etc.

My question is in regards too the timing. Do I have too re-time the engine and lock the cams with a piece of folded up paper, before removal of the timing chain?

or can I skip both of those steps. And just time the engine (matching orange links and notches). when I’m reassembling it after?

 

Gen 3. Sorry. I’ll specify better on my profile as well.

 

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follow up question if you don’t mind. The pulley bolt. I read somewhere the AC bolts can be used to lock the pulley. But other than that. The only way too do it, is with a pulley locking tool?

 

I want to be sure my timing marks are accurate before further disassembly.

As well The timing sprocket on left hand side , has a small rectangle at very top middle orange link. And left side middle of sprocket has another rectangle with small dot.
(Sorry not super visible in pics).


As well. I can feel a small bit of resistance when I go back or forth more than 10-15degrees. From this specific point I’m at.


so I just want to be sure I’m not opening something and closing the other when it should be reversed...

 

Sorry for posting this in multiple locations. Just trying to cover my basis so I can hopefully
Have some replies tomorrow.



I want to be sure my timing marks are accurate before further disassembly.

As well The timing sprocket on left hand side , has a small rectangle at very top middle orange link. And left side middle of sprocket has another rectangle with small dot.
(Sorry not super visible in pics).


As well. I can feel a small bit of resistance when I go back or forth more than 10-15degrees. From this specific point I’m at.


so I just want to be sure I’m not opening something and closing the other when it should be reversed...

 

why is the timing not correct? All the marks are in the correct places no?

 

I followed the service manual photos. (Pictured in above reply).

the 2 marks line up with the orange links on both sides. And the yellow dot on pulley is at 0 mark.

If I move the pulley left or right off of 0 mark. Then #1 cylinder begins to go down again. And I feel a bit of resistance.
So I believe it’s currently at TDC?

 

That’s literally what I was about too ask about. The dimples/dots it shows on the cams near the lobes.

The exhaust cam the dot is more leaning too the left side.

And the intake cam, I don’t see any dot at all. I rotated it around too be sure it wasnt hiding. But no dots at all on that cam. I’ll double check tho too be sure.



just thought to myself. Do you think the dot it shows near the lobes, are too tell you where the lobes should be pointing? Not an actual marker dot?

from the videos and such I’ve seen. Everyone references the orange links and the 0 mark. But never mentions those dimples on the cams themselves.



sorry for long reply!!!

 

putting the towel in. Is too lock the cams in place after timing has been set. I’m looking to confirm if my timing is correct. before the next step.


And yes I know it’s annoying to post multiple locations. But when posting in technical. I didn’t get any replies.