With the tensioner assembly, Sandstone's linked table (page 24) shows that you can replace
just the black tensioner pulley alone and torque that to
18 ft. lbs. (216 inch lbs. +/-). Sandstone's linked table also lists replacing the
entire tensioner assembly shown in the picture and those mounting bolt(s) at
40 foot lbs.. The 2 idler pulleys look to just screw into the engine block by themselves and are torqued to
35 foot lbs.. Someone correct me if I am wrong. Hope this helps.
EDIT 8/22/2022: I finally installed new tensioner assembly, 2 idler pulleys, and belt. I put marks on the mounting bolts and tested the OEM torque before replacement (loosen, then torque wrench retighten). The 2 idler pulleys at 35 ft. lb. seem to be correct.
THE OTHER 2 TORQUE VALUES SEEM TO BE REVERSED. The smaller diameter tensioner assembly bolts (2) are about 212 inch lbs. (18 ft. lbs.). I didn't loosen/tighten the tensioner pulley bolt, but I am assuming it is 40 ft. lbs.
There are many YouTube videos showing these procedures. Things I found helpful: 1.) move the coolant reservoir out of the way (1 bolt). 2.) on 2014, remove 7 fasteners and let plastic engine cover drop out of way (no need to fully remove). 3.) Fully retract the tensioner and install a pin in the hole (like new one) to have access to top tensioner bolt. Tensioner can be pulled out/put in from top without removing pulley. My steps eliminate some extra work in the videos and gives good access both top and bottom. Some bolts are easier to torque from bottom - others from top. Fairly easy project. I ground down a 16mm socket for access space (torque wrench, belt tensioning)