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Some good advice here.
The piston does move freely when pulling back, but with the cylinder head is plugged with my finger, it stops moving forward, therefore good compression. This is with the air nozzle on and off.
I will be getting new gears soon, torque up helical. My shimming is as good as it gets with the self shimming gears. The bevel gear needed the most shimming. I just added some shims to the sector and spur gear because the spring lost some tension. I put the shell back together and the gears spun freely with no drag or play.
I have a hard time getting the barrel and hop up sleeve into the hop up chamber without it getting all bunched up. It's in there now, but could be sitting better. I lube when I put it In, lol. Can the inside of the hop up be opened up with a round dremel bit? Or is that a no no?
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