Bowden tube must go down into the top of the Heatbreak. It’s quite a bit of distance actually.
While heated up to 280 - or at least 30c higher than your highest used temperature, whichever is highest. Meaning you need to heat it to 330-340c if you print PC, or you risk leaking.
Use a plier or spanner to hold onto the heaterblock while you use a similar tool to tighten the nozzle.
*Screw the Nozzle all the way in then untighten for a ½ round.
* Depending on model, you now turn the haeterblock/heatbreak/heatsink untill heatbreak/heatsink are tight up against the nozzle.
Note: Make sure the nozzle stays at the ½ turn posistion while doing the above.
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