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Old 09-06-2012, 04:23 AM   #1
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Question T Series FN Hi power

Hello folks. I've obtained a '67/'68 Hi Power at a good price and had it re-blued. I have a problem that I'd like some help to accurately diagnose and fix. The magazine begins to bind when being inserted about 7/8 of an inch from being fully inserted. The magazine can be inserted, and will feed fine. It takes some considerable effort to release the magazine.

A bit more information. I've removed the mag safety, so no binding there. I've removed (temporarily) the magazine release, and the binding still takes place. I have over a dozen magazines and the binding takes place with all of them.

I don't have any dykem (sp?), so I'm assuming the best way to start to diagnose this would be to mark up the magazine and see where it rubs? Are there any likely things to suspect as the cause?

I would appreciate any direction you all can provide.

Best regards,

Ray
 
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Old 09-06-2012, 08:21 AM   #2
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A laundry or whiteboard dry marker is an excellent substitute for Dykem. Also smoke from a candle or butane lighter works. Not as messy or permanent as Dykem. I suspect the hammer spring is to blame, although some friction is designed in to prevent the magazine falling out on the battlefield, George M.
 
Old 09-06-2012, 06:53 PM   #3
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Hello Ray,

Make sure the locating tabs and the sear spring is seated properly in the frame and make sure the spine of the magazine isn't rubbing the arched area of the hammer strut or the front side of the sear (the large flat area that faces the mag well).

When you say, It takes some considerable effort to release the magazine. Do you mean it's hard to depress the magazine release - or it's hard to pull the mag out of the frame?

Also, have you tried inserting the magazine with the grip panels removed?
 
 
Old 09-06-2012, 07:22 PM   #4
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Quote:
Originally Posted by George M. View Post
I suspect the hammer spring is to blame, although some friction is designed in to prevent the magazine falling out on the battlefield, George M.
Hello George,

The hammer spring is Behind the sear spring on a High Power and it couldn't touch the magazine if it wanted too! And when the magazine disconnect is removed from an HP (like on Ray's) an in-spec magazine will literally fall right out - because there's absolutely NO drag on the magazine what so ever when the release is fully depressed and the disconnect has been removed.

It sounds like you're talkin' about a CZ 75 when you say "there's some friction designed in" to prevent the magazine from falling free. CZ actually calls this part a "magazine break" and they sell a flattened, "non-break" spring as an option (it comes standard on the CZ 75B SA Model).
 
Old 09-06-2012, 07:32 PM   #5
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Yep, true.
Actually Bob I was just checking to see if you were paying attention!
 
Old 09-06-2012, 07:39 PM   #6
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Quote:
Originally Posted by George M. View Post
Yep, true.
Actually Bob I was just checking to see if you were paying attention!
Ahhh, George! You're keeping me on my toes and have me workin' over time to boot.
 
Old 09-07-2012, 02:07 AM   #7
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Bob and George, thank you both for your answers. I'll be looking into the mag well again this afternoon or latest this weekend. The mag release spring may be somewhat stiff, but not overly so. Even with the mag release out of the pistol, removing a seated magazine is difficult. Something must be dragging near the height of the magazine disconnect shoe, although the shoe itself is not present. Good suggestions!

Thank you again,

Ray
 
Old 10-01-2012, 03:33 AM   #8
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Hello Ray,

Did you get this HP squared away?
 
Old 10-01-2012, 05:18 AM   #9
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Hello Bob:

Thanks for asking. I have it narrowed down and the problem is less. I think the hammer strut is pressing on the sear spring. I have a spare hammer strut assembly to swap in. Life has been "interesting" lately (like the old Chinese fortune cookie saying), so I have had less time to pursue this than I would like.

Another gentleman on the "Hi Power Talk" forum sold me the hammer strut assembly. All I need is about 15-20 minutes to strip it down and check it out. I'm pretty sure the geometry is off a tad.

I'll let you know.

Thanks again,

Ray
 
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