Iver Johnson TM22 - Pistolsmith

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Old 12-15-2014, 06:14 PM   #1
Louisiana Gunny's Avatar
Join Date: Jul 2013
Location: Louisiana
Posts: 36
Iver Johnson TM22

I have a IJ TM22 that came in. Rusted tight and wouldn't move at all. I soaked it in Kroil and pulled it apart and cleaned it. Putting it back together, it won't engage the trigger. The sear does not keep pressure on the trigger bar in order to disengage the sear and fire the trigger. I bent the main spring to see if it would put more pressure on the sear, but it still doesn't engage. When the gun is apart, the sear pivots with little pressure, so I know it's not locked up. I plan on ordering another spring from Numrichs, but was just checking to see if any old timers had run across this to confirm my suspicions that the spring is shot before I order another spring.
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Old 12-16-2014, 05:37 PM   #2
Senior Member
Join Date: Jun 2001
Posts: 1,801
Hard to say unless we can see the patient.

First check is for anything that might be catching or pressing on the spring. Rust can get into odd places and do odd things.
Also check the inside of the grips. Odd things get odd places.

If you tension the spring and it fails to operate the sear, check to see if it still has the tension after you disassemble it again.
If not, the spring is likely shot.

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