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Sticking action on .22 semi auto

6K views 19 replies 7 participants last post by  Stamps6  
#1 ·
Hey all, a good mate of mine has a Glenfield 75C semiauto .22 and is having trouble trouble with the action sticking open about a 1/3 of the way back. He and I have tried hard core cleaning it to the point it looks brand new but the sticking hasn't got any better. Anyone have any ideas on what direction we could go to try to get it sliding a little better. The gun isn't worth much so major repairs wouldn't really be worth it.

Thanks all,
Tyler
 
#4 ·
By "cleaning", do you mean you stripped it down to the component parts and took off all traces of lead and old powder gunk, including in the receiver and trigger group? Without seeing it in person, I would lay odds that it isn't really clean where it matters. The other option is the main spring might be worn out, bent, or broken.

Youtube video on taking it apart and putting it back together:

It's a tube magazine, for those who are not familiar with it. Basically a Marlin 60.
 
#5 ·
CM, I took it down just like the video with the exception of taking the trigger guard off as well and cleaned it (that was the video I found when originally looking to clean it). I didn't dig into the lower receiver anymore than the video.

My thinkings were somewhere along a spring maybe? How would I tell if it needed replaced?
 
#6 · (Edited)
The main spring, the one on the guide rod behind the bolt, is the one that is most likely to wear out. That one cycles every time the bolt goes back.

Image


Your spring: https://www.gunpartscorp.com/Products/444190B.htm is part #63 in the diagram.

The guide rod (probably doesn't need replaced but if it is bent or has burrs, might as well replace it: https://www.gunpartscorp.com/Products/444200B.htm is part #64 in the diagram.


If it is not that, and all the parts are CLEAN (no WD40 or other gunky lubes) and lightly lubricated with quality oil, then I would take it to a smith.
 
#7 ·
Thanks CMonster, a lot of good info there! I went ahead and ordered the spring (spring is a little bent up) and guide being as I'm certain all parts are clean. If that doesn't work looks like the smith it is.

Do you have experience with this site? Should I expect prompt shipping or delayed shipping?
 
#11 ·
Update for those interested... I'm still waiting on parts to see if that helps the bolt. On a side note, after further examination of the lower receiver it appears the mecchanism that feeds rounds from the tube is favoring on side and catching/rubbing slightly. Potentially part of the issue?
 
#12 ·
Could be, if it doesn't let the rounds out properly it could jam when the bolt starts forward. But uneven wear marks don't necessarily mean it isn't functioning. If it catches, however, you may want to do some smoothing of the contact area. Very, very carefully.
 
#16 ·
I still haven't taken the gun to the gunsmith but I was wondering if I could get some ideas in a different direction... I'm wondering if the extractor is letting the shells go, it seems like it might be holding on to them and trying to jam the empty forward again while loading the next round...any ideas?
 
#18 ·
To those of you interested or anyone who many stumble upon this in a search with a similar issue:

Recap on the problem: A Glenfield model 75C .22 (similar to Marlin 60) was having issues with a sticking action and later showed to have ejection issues and problems with jamming.

I replaced the guide rod and spring initially when trying to diagnose the sticking action, it didn't seem to help much. Later I took apart the lower receiver and polished the components and did a small amount of filing. This really helped the sticking action but reared the ugly head of the jamming and ejection issues. Next I replaced the feed throat and ejection spring and the gun acted brand new. Problem solved. So if anyone else has this problem I may start with polishing and the ejector spring and see what happens after that.

Thanks to all that helped along the way!