tightening torque for copper heater block / nozzle
it is stated that when using the combination of copper heater block and nozzle, no hot tightening is required. (source) With this in mind, some questions come to my mind:
1) Using copper HB and Nzl and assembling “cold” which torque should I apply? The same 3 Nm that I use to apply on the hot Aluminium/brass assembly?
2) What would be the assembling instructions for: (same old “hot” tightening at 3Nm?)
2.1) Brass nozzle / copper HB
2.2) Copper nozzle / Aluminium HB
Is this a good question?