Two things;
First, the J-Head MK-V(B?) that I got from Makerfarm over 2 years ago has worked great with very few issues over that time. Only recently did I come across serious clogging issues (see the gunk in the first picture) that necessitated the very first tear down I have ever had to do on it.
Second, when taking apart an old J-Head, grip the top housing near the heater block (I used pliers to hold onto the upper portion) because you risk cracking the now brittle plastic. I tried to hold it together with a bunch of layers of Kapton however it just wasn’t enough to handle the pressure.
Good news though, I’m ordering my E3D V6 right now 
but I think I’ll try to get a new barrel too so I have a backup. Anyone know where I can get a V5 PEEK nozzle holder?
Shame too since I finally just got the PID settings just right so I only get about a 4 degree swing :(… literally, tonight.
But hey! No fire!
