GTA
Airguns by Make and Model => Gamo Airguns => Topic started by: sandman on September 04, 2022, 07:29:53 AM
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Any of you guys have an AF-10 and are willing to check whether or not there's supposed to be a small magnet in the side of the hole in the transfer port block?
BB's now roll down the barrel, and I suspect it's because there was once a little magnet holding them in place which at some point got jealous of the bb's and decided to break free from it's gluey chains to get launched downrange as well.
(https://i.imgur.com/msBE0fs.jpg)
mag spring pushes bb's into the hole in the transfer port
(https://i.imgur.com/IFWfQyn.jpg)
the empty space where I suspect a little magnet is supposed to sit
(https://i.imgur.com/sPfxG2t.jpg)
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There was indeed a little magnet missing, part nr. 18220 if anyone is having the same problem. There's a resin plug that you have to remove, which covers a brass grub screw you need to take out before you get to the space the magnet is supposed to sit in. The grub screw doesn't thread out all the way so removing it is a little tricky. I ended up poking it out from the other side with a little angled wrench normally used for tightening orthodontic braces.
After that, I roughed up the surface of both the grub screw and the magnet with some scotch brite before cleaning both with some rubbing alcohol. All this to make the glue (loctite 3 universal) bond better, to avoid another magnet turning into ammunition.
Once you're done cleaning both surfaces, apply a tiny drop of loctite to the flat top of the grub screw (not too much, you don't want to get loctite in the very fine threads of the screw). I used a pair of pliers to hold the grub screw on one end and carefully dip the head of the screw in a blotch of glue, then used my fingers to press the magnet on top. You could also use plastic tweezers, but using metal tweezers is a nightmare because the magnet will snap to its surface in unpredictable ways.
Held them together for about a minute, then re-inserted the grub screw, threading it in place until I felt the resistance of the magnet against its woefully inadequate backstop. Don't over-torque the grub screw, as you'll push the magnet right through the tiny edge of plastic on the inside of the housing which is intended to keep it in place.
Re-assembled the gun after adding a drop of oil into the chamber, and now bb's don't roll down the end of the barrel anymore. Hurray :D