Idler pulley torque spec??

Any help is appreciated thanks

for the om611 I have 22lbf ft and for om602 I have 18lbf ft according to Haynes, but the book states that does not cover 2.7 lt engines.
for the om647 2.7lt that you may have I found this in the 2006 workshop manual that is available in this forum
(26 lb ft)
imagen jpg

Thank you very much that helped