10V Cam pulley/timing belt question

[Andrei Kogan <abk@phy.duke.edu>]

Hello,

I finally received the 2084 and I am going to do the TB job over this
weekend. The procedure seems clear except for one point, namely the cam
pulley removal. What is the safest way to remove it without upsetting the
camshaft position? Someone wrote that it is sufficient to just hold it with
a screwdriver while undoing the nut, there was also a suggestion to clamp
the old timing belt underneath it and then unscrew the nut. I like the
latter idea, assuming the belt is strong enough. How much torque does one
use on the cam pulley nut? Also, should one use a thread lock on it? If the
idea with the belt works, then I am going to remove the cam pulley, do the
waterpump/thermostat, put the cam pulley back (does it go on in a unique
way?) again use the old belt to tighten the nut, all with the 2084 holding
the crank pulley. Then remove the crank pulley and replace the T-belt. 

Please send me your comments,
Andrei