Mauser Guns Collectors Forum

Pistols => Model HSC Pistol => Topic started by: f4wso on August 28, 2017, 01:46:35 PM

Title: HSc Takedown Problem
Post by: f4wso on August 28, 2017, 01:46:35 PM
Hi from Indiana,


I have what I believe is a 1943 Commercial HSc (#8437xx with only Eagle/N s) that a friend wanted me to clean up. I got the barrel latch loose under the trigger guard with kroll oil and it seems to move all the way down but the slide does not move forward at all so I can lift it out. Hammer is full back, safety on, mag out. Any tips on the best (wood hammer??) way to proceed?


Thanks in advance
Title: Re: HSc Takedown Problem
Post by: jcorl on August 28, 2017, 02:07:04 PM
Once upon a time, I had that problem.  There was old oil that had turned into varnish.  It just needs to move so slightly forward.  A hard tap with the heal of your hand should work.  A rubber mallet hangs in my shop for a gun that is rusted shut.  It leave no marks.  You said the mag was out!  You may want to take the grips off and Blaster it.  I like that product. 


JIm
Title: Re: HSc Takedown Problem
Post by: f4wso on August 28, 2017, 02:09:48 PM
Mags out. I'll try my rubber hammer
Title: Re: HSc Takedown Problem
Post by: f4wso on August 28, 2017, 03:07:54 PM
Thanks, tried the rubber hammer and some CLP Powder Blast to no avail. I will have to find and buy some Blaster next. Regards, Wib
Title: Re: HSc Takedown Problem
Post by: jcorl on August 29, 2017, 09:56:53 AM
Does the gun cycle?   

Jim
Title: Re: HSc Takedown Problem
Post by: f4wso on August 29, 2017, 10:22:57 AM
Gun seems to function fine passing safety checks. Only thing I noticed different is as you fire in double action with the safety off, the safety slides into safe and prevents firing. I don't think this is a rust problem since not a lot on the rest of the pistol. I haven't tried to cycle and bullets thru it  Thanks,
Title: Re: HSc Takedown Problem
Post by: Warbird on August 29, 2017, 12:14:19 PM
If the Safety is loose, then the Extractor will also be loose and non-functional.  They have a common compression Spring.
Title: Re: HSc Takedown Problem
Post by: f4wso on August 29, 2017, 12:39:49 PM
Thanks Warbird. Would that have anything to do with my inability to get the slide off? If so, any tricks you know to get it off so I can do the repair? I've changed extractors and springs on other weapons or is it time to find a HSc-capable gunsmith? Wib
Title: Re: HSc Takedown Problem
Post by: Warbird on August 29, 2017, 12:48:46 PM
It has nothing to do with the Slide coming off.  Best guess?  You need to move the Barrel Latch more to clear the dovetail Barrel lockup (and the Slide).
Title: Re: HSc Takedown Problem
Post by: jcorl on August 29, 2017, 04:37:09 PM
Follow Warbirds advice.  He is the pro in this conversation. 

Jim
Title: Re: HSc Takedown Problem
Post by: vlim on August 29, 2017, 04:48:11 PM
Sometimes it may get stuck on the hammer. Try pulling the hammer down while trying to release the slide.
Title: Re: HSc Takedown Problem
Post by: f4wso on August 30, 2017, 10:20:48 AM
All thanks, a lot of good ideas. I tried all of the suggestions to no avail with the help of extra hands and a vice. Maybe I am missing something or it is the arthritis. I have pushed the barrel latch all the way down with tool slightly into the trigger guard, while holding the hammer back and moving the slide forward. The slide doesn't budge. Am I missing anything?


I am used to having problems with old firearms and it always works outs - reason for the hobby. I want to salvage this pistol and will keep trying.


Regards, Wib
Title: Re: HSc Takedown Problem
Post by: jcorl on August 30, 2017, 10:34:22 AM
Just measured.  My barrel latch moves downward 2mm upon pressure applied. 

Jim
Title: Re: HSc Takedown Problem
Post by: f4wso on August 30, 2017, 12:38:06 PM
Jim, good idea maybe not pushing down far enough. Not sure if you measured it but mine goes deeper than 2mm by eyeball. With a plastic tip actually managed to get it farther down and stuck - still no luck. Thanks, Wib
Title: Re: HSc Takedown Problem
Post by: f4wso on August 31, 2017, 06:59:32 PM
All,


Thanks for all the advice. I guess something is broken inside and keeps the slide from moving forward. I don't know if it is normal but when the safety is engaged the slide moves forward which to me would lock it tighter on the takedown latch. Anyway, it is a neat looking paperweight for now
Title: Re: HSc Takedown Problem
Post by: jcorl on September 01, 2017, 03:12:15 PM
When you push down on the barrel latch, about one half way down do you feel an increase or decrease in resistance?   It will be ever so slight.

Jim


 
Title: Re: HSc Takedown Problem
Post by: f4wso on September 02, 2017, 10:54:44 AM
Seem like an increase in pressure and may be little bit of slight grinding
Title: Re: HSc Takedown Problem
Post by: jcorl on September 02, 2017, 01:25:41 PM
That is the way mine feels, when it is working correctly.  It is clearing the tight spaces in the rails.  (Probably an incorrect term)


Jim
Title: Re: HSc Takedown Problem
Post by: vlim on September 03, 2017, 01:39:30 PM
With the left grip removed you may be able to peek if anything is keeping the slide from releasing?



Title: Re: HSc Takedown Problem
Post by: f4wso on September 05, 2017, 05:10:01 PM
Vlim, good idea. Took a look with both grips off couldn't see any blockage. Thanks
Title: Re: HSc Takedown Problem
Post by: vlim on September 05, 2017, 05:24:25 PM
That would almost suggest that the takedown plunger is broken and the barrel remains locked to the top part of the plunger.
Title: Re: HSc Takedown Problem
Post by: f4wso on September 17, 2017, 10:32:06 AM
Agree, it might be the takedown plunger but it does seem like a heavy piece of metal. Anyway, I tried soaking it for a while in de-greaser and still no luck.


I'll check with the owner and see if he wants it back. At least I can give it a good home.


Any HSc savvy gunsmiths you can recommend?


Thanks to all who helped.


Wib
Title: Re: HSc Takedown Problem
Post by: Warbird on September 17, 2017, 01:37:14 PM
After rereading all your posts, I just want to be clear.  The Slide retracts (opens) all the way without restriction.  Is that correct?  If that statement is correct then the only thing preventing it from moving forward off the Frame is the Barrel Latch and Vlim would have to be correct that it is broken, although I have never heard of this happening.  Please confirm my question.
Title: Re: HSc Takedown Problem
Post by: f4wso on September 17, 2017, 09:53:14 PM
Yes, correct. The slide can be opened and even locks back on mag. I think the safety has to be off to pull slide all the way back
Title: Re: HSc Takedown Problem
Post by: Warbird on September 18, 2017, 06:41:03 AM
The HSc Safety has only one function:  it moves the tail of the Firing Pin up into a recess in the Slide and out of the path of the Hammer.  If anything else is going on with its movement then something is wrong with the internal mechanism.

Back to the Barrel Latch.  Its shaft is hollow with a return Spring inserted.  When you push down on the Latch does it want to return back up?  If not then it is definitely broken.  Since there is no way to get at the top of the Latch (a dovetail), the only thing I can think of is flooding it from the Trigger Guard with penetrating oil, let it set for a day or so then try to shake it down.
Title: Re: HSc Takedown Problem
Post by: f4wso on September 18, 2017, 02:22:15 PM
Warbird, thanks.

In answer to your question. When I push down on the Latch it wants to return (spring) back up.

I have noticed when I engage the safety the whole slide moves forward and when I move safety to fire the slide moves backward. If I then pull trigger in DA the safety moves half way to on on first pull and then all the way to safe on the second. Not sure if this is normal?

So I understand your recommendation, I should
1. Place pistol upside down and flood with penetrating oil (I have Kroll and WD40) through the Latch on the front of the trigger (and/or Trigger Base gap)
2. Let set for a few days
3. Holding pistol upright push down on the latch while shaking the pistol and moving the slide forward and up
Title: Re: HSc Takedown Problem
Post by: Warbird on September 18, 2017, 03:08:05 PM
That is correct procedure ... you are trying to shake the head of the Barrel Latch out of its dovetail on the Barrel.   I use WD40 for everything and not familiar with Kroil.

I covered the action of your Safety already but to restate:  The action of your Safety is NOT normal.  I am beginning to suspect that someone took this HSc apart and reassembled it broken and incorrectly.
Title: Re: HSc Takedown Problem
Post by: f4wso on September 18, 2017, 04:47:12 PM
Thanks for clarifying. Soaking now. The take down latch if really pushed down can be made to stick/wedge in place, but will easily spring back with a gentle touch.


I agree, something is not right on the inside of this pistol. Hate to see that happen to these old guns
Title: Re: HSc Takedown Problem
Post by: DesertDave on September 23, 2017, 02:38:14 PM
Aero-Kroil is wonderful stuff! I've used on my 20's & 30's cars for decades. Really breaks loose nasty rusted hardware..10X better than WD-40. Used it on sticky, gummed up P.38 slides over the years, too. Really works wonderfully. Then flush it all out, blow dry & Ballistol the mechanism...My 2 cents..DesertDave