eg1122
For those of you that may need to disassemble the block to clean it out, the appropriate torque for the screws holding the Plexi to the cold plate is 0.6Nm (about 5.31 in/lb). I got this information directly from EK support.
I have taken all of my EK Blocks apart at some point (to clean).
Although I didnt use a torq drive to actually measure the weight I was applying...I did use the cross pattern tightening each a little at time, until finally couldn't tighten them anymore.
Try not to dislodge the "O Ring, as it can be very tricky to get back into the groove and seat itself.
If it does come out, try soaking it in a bit of warm water tro make it more pliable, then as it cools it will harden a bit and contract