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I believe that I removed mine cold - I cleaned the nozzle by soaking it in acetone then using a fine wire to clean the small hole in the tip.
dave

You may want to remove the nozzle (careful! You need to hold the heater still with one wrench as you remove the nozzle or you can twist the temperature sensor wires & break them!) - I had some...

It is a bit tricky to get the screws into the stepper motors - pull the fan & heat sink back a bit to get the threaded hole in the motor visible - once you get one in the other is a snap.

dave

A quick update - I measured the piece that I have yet to reinstall (the brass is still in there!) and it is 9mm long, 7mm in diameter with a 3mm hole in the center.
dave

I also lost one when working on my extruder - the spacer is important as it allows you to tighten the bolt that holds the fan without distorting it. I made a replacement from a piece of brass tubing...

Geoff - here is an update on the plugged left extruder. I contacted FlashForge tech support and Tang, a very helpful technician, led me through dis-assembly of the print head and removal of the...

Geoff - thanks for the tips - I disassembled the unit, managed to remove the filament and cleaned the toothed gear - it was pretty clean. On reassembly it still will not feed - It appears that...

Geoff - I have the same FlashForge printer that you describe in your posting. I have a plugged up extruder and have followed your (excellent) suggestions and still have troubles. I am unable to...