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I just did this job tonight and I believe you may be incorrect. I'm not totally sure but here is what I went with:
2: 20 NM
4b: 35 NM
6: 35 NM
7: 35 NM
8: 70 NM
I believe guild pulley 8 gets 70NM due to step 11 in the attached document. That is the step where it mentions "guide pulleys (3)" and also mentions "BA13.25-P-1002-01Y" which is listed on the 2nd page with 70NM. If we assume its one of the 3 and then you look at them, you will see 1 of them has a much bigger bolt and is twice as heavy as the other 2 pulleys, so that the one I went with at 70NM. Once tightened at 70 NM it still spun freely, so seems to be fine.
Also, another reason I believe it's not the upper guide pulley at 70NM is that is mentioned in steps 11-15 where it is referenced to "BA13.25-P-1005-01Y" which is listed on the 2nd page with 35NM.
Additionally, yes, I am fairly certain tensioner bolts are 20 NM: "BA13.25-P-1001-01Y - poly-V belt tensioning device - 20NM"
One other thing, don't let "BA13.25-P-1003-01Y" confuse you, it got me for a few min, but it is only bolts for the "guide pulley CARRIER" being mentioned, NOT actual guide pulley bolts. There is no guide pulley getting set to 20 NM. As far as I can tell this is the bolts for the bracket in step 11, since they are small bolts and 20NM makes sense for these.