I found the torque settings for the ca16de. I don't believe they should be much different. I found one manual for the ca18det, but it was missing the important pages like you said. http://manual.nissanexa.com/CA16DE_Manual/EM.zip - that's the link for the ca16de manual. I put the page here for a quick reference tho.

I have a pulsar and they are difficult at times. What car are you working on that has a ca18det?