Oh I remember doing that on my old 2013. The hardest part was getting the belt back on because even with the special tool I couldn’t get the belt on. I eventually got it with some fight 😂

 

I remember changing the belt on my 2007 CRV. I had to remove the power steering reservoir and bracket in order to have enough room to get the wrench on the tensioner. Putting the belt back on, I called my wife to just hold the wrench in position while I slip the last part of the belt on. That was the first time. The second time was a lot easier. Second time was due to changing the alternator.

 

I just replaced my 2013 OEM belt with a Bando 7PK1680 aftermarket. With the stretched OEM belt, the tensioner indicator arrow was all the way to the right of the shallow rectangle (like the OP's first photo), but with the new belt, it's on the left edge of the deep rectangle like this top graphic. I guess I was a little surprised at the huge indicator difference, but somewhere in this forum, I read the Bandos are a little shorter or Gates are longer or something like that. I triple checked the belt positions and all was perfect. Oh, I didn't remove the tire. I jacked the front, used stands, and then turned the steering wheel right. (Straighten the wheel before setting back down)

I also used the 2 wrenches linked together (14mm & 17mm) which gave me plenty of leverage room, but I duct taped them together to make it a little easier. I think the trick is to have the belt partially off the tensioner at 3-6 o'clock and partially off the idler at 9-12 o'clock and wiggle each on little by little.

 

I'm in the process of getting a few things together for my hondaautomotiveparts order- to make the shipping cost worthwhile. When I changed my serpentine belt, one clip was missing and other was worn on the access flap in the passenger wheel well. I've been searching for hours for the correct clips. I bought 2 packages of clips on Amazon and neither fit.

Looking at this page, would the clips (number 10) that hold the bottom of the Splash Shield (number 8) also be the correct ones that holds this side flap in place?

How many different clips or grommets are there on these cars? Someone should sell a kit of all of the clips/grommets needed in one particular make/model of car... a few of each is all you need. Instead of buying a 100 pack and only using a fraction. Some green door panel clips, some yellow front grill clips, ect, ect. The wheel well liner alone has 2 or 3 types of grommets/clips. Thanks.

EDIT: Found THIS!