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Old 02-10-2019, 09:15 PM
mauserdad
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Changing recoil springs



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New member here needing some advice. I have acquired to HS pistols. The first one is a H-D military, ser# 273206 and the second one is a Sport King, ser# 398748. Both appear to be all original and in nice shape. I do not know the use history on these as far as what ammo was used or how old are the recoil springs. I am going tomorrow to buy 22LR standard velocity ammo to shoot in these. I have reviewed several disassembly videos for the proper procedure. On a added note I see no cracks in the frame. My questions, not knowing the use history, should I replace the recoil springs with new Wolf springs? What spring type would you recommend? Thanks for any help. Ed
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Old 02-10-2019, 10:15 PM
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springs

The driving springs from Wolff and Gun Parts for the H-D Military need to be trimmed to 40 full coils. Otherwise, you will have serious difficulty assembling the slide properly. Count the number of coils on your old springs for reference.
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Old 02-11-2019, 08:22 AM
mauserdad
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Thank you for your advice. Any other input?
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Old 02-11-2019, 12:09 PM
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" jaybar --- ...my instructions are specific to the 102-107 ( Big Button) guns. Having said that; changing the recoil spring on an HD Military is about 90% the same.
The 10% that is different mostly relate to the driving spring retaining button - id est:
**The driving spring retaining button is unidirectional ( it only fits one way). I would recommend drawing a vertical line across the front of the button and the slide face before removing the button to be used as an index reference for re-assembly.
Use a grease pencil, nail polish etc so that you will be able to line the button back up when you reassemble.
** The front of the slide usually doesn't peen in on the HD - so you can skip the steps where I talk about removing the peening. Conversely, since the slide doesn't peen closed the button will fly out the front with vigor when you withdraw your punch.
I recommend placing a sock over the front before you withdraw the punch to catch the button.
**Since you can remove and insert the retaining button without having to pound on the slide with a mallet, there is no need to remove the extractor.
** Order a standard 5.5 pound recoil spring for the Big Button guns and cut it to exactly 40 full coils to use as a replacement spring for the HD.
There are 2 ends on the spring, a small and a large. The small end should fit tightly over the spring guide rod. Cut the coils off the large end.
** Important: Make sure that before you start to disassemble that the guide rod is released from the catch and is at its full rearward position. You have to capture the guide rod with the catch before you remove the slide from the frame.
When the guide rod is captured the spring is at its full compression pressure and if you remove the retaining button with the spring compressed you'll experience a very exciting ballistic event that likely won't be contained by the aforementioned sock.
*** Equally important - make sure that before you put the slide back on the gun that you recapture the guide rod.
*** Above all else - DO NOT pull the trigger with the hammer cocked and the slide off the gun!!!!!
The hammer will fly forward, the hammer strut will fly out of the control of the mainspring plunger and you'll have a real task in trying to put it back together."
/////////////////////////////////////////////////////////////////////////////////
I predict that if you try to replace the driving SPRING (31-H) the way shown in the video you will have a very bad experience.

When you remove the slide from the gun the SPRING is captured compressed in the the forward compartment of the slide.
The Spring must be released before the PLUG (32H) is removed.

He failed to do this.
If you try to do this, the SPRING will cut your finger and the Plug will disappear as if by magic.
After you spend an hour crawling around the floor, you will waste additional time trying to find someplace to buy one – if you can.

To give yourself a sporting chance, you will first have to release the driving SPRING from the forward compartment.

Make a tool out of a cheap small diameter Phillips screwdriver.
Grind off the tip of the screwdriver to a dull point – essentially making an ice pick out of it.

Now push the driving ROD (30H) forward into the compartment and the SPRING will release to the rear.

An aside: Using the ice pick, you will have to recapture the driving ROD into the front compartment before you put the slide back on the gun or you will have problems.

Put a cheap folding transparent plastic sandwich bag loosely over the front of the slide holding it in place with a rubber band.

Working through the plastic bag drive out the PIN (33H) with a punch.

Hold your finger over the PLUG with something over your finger to protect it from being cut.

Now remove the punch to release the PLUG.

Typically nothing will happen!
The PLUG stays in the cavity because the slide slamming into the frame over time reduces the diameter of the hole locking the PLUG in place.

The simplest solutions is to insert a tapered punch into the hole to expand the opening.
Insert the punch, tap on it with a small hammer, rotate the punch, tap, rotate again.

Eventually when you remove the tapered punch, the PLUG and SPRING will come flying out – hopefully to be caught by the plastic bag.

Now we come to the harder part – Putting the new SPRING in.
You will not be able to do it the way the video shows.

He put the old SPRING back in which had been shortened due to long use.
The fresh new SPRING will be about 1 inch longer than the old SPRING and you will not be able to push it back into the hole.
Trying to force it in the hole will cut your fingers, probably losing the PLUG again, and possibility damaging the SPRING.
The simplest solution is make an insertion tool with these approximate dimensions.

Metal rod about 4 inches or more long.
First .8 inch of the rod is .15 inch diameter.
Next .25 inch of the rod is .21 inches diameter.
Next 3 inches not important.

This tool can be made on a lathe in a couple of minutes.
Since you may not have a lathe, you can make the tool using a drill press.

I would suggest you take a cheap 7/32 drill bit.
Heat the blunt end cherry red and allow it to cool slowly so that the metal will be soft.

Put the drill bit backwards into the drill press and reduce the diameter of the first 1.25 inches with a file to a diameter of about .21 inches.
You can check the size by inserting it into the hole of the slide.
When it fits, you are finished with step one.

Then reduce the diameter of the first .8 inch to a diameter of about .15 inches.

Now the remaining .21 inch section of the rod should fit in the hole in the slide.
And, the .15 inch section of the rod should fit inside the coils of the SPRING.
Adjust the diameters if needed until you achieve both objectives.

Next file a single flat on the .21 diameter section immediately adjacent to the .15 diameter section.
The propose of the flat is to aid in capturing the Spring.

Here is how it works.
Insert the ROD/SPRING assembly in the hole.
An inch or so of SPRING should be sticking out the front of the slide.
Insert the tool into the SPRING.
Aline the flat with the PIN hole.
Insert the SPRING using the tool.
Insert a slave pin in the PIN hole and capture the SPRING as you withdraw the tool.
With the SPRING captured by the slave pin, insert the PLUG with the PIN hole pointing straight up.
With the PLUG against the slave pin, remove the slave pin and fully push the PLUG in.
Then reinsert the slave pin.
You are now in position to insert the actual PIN at a time of your convince.


Other Issues:
There is a groove in the ROD in which the small section of the SPRING locks into.
It can be difficult sometimes to remove the old SPRING from the ROD.
You must install the small end of the SPRING first so that the small end if the SPRING locks into the groove of the ROD.
If you put the large end of the SPRING on first, there will be problems.

After the old SPRING is removed from the ROD, you must test the ROD to insure it is not bent.
Put the ROD on a drill and spin it to confirm it is straight.
There will be problems if it it not straight.

The next test is to push the ROD/SPRING assembly back and forth in the slide to see if it hang up anywhere.
Rotate it 30 degrees and try it again, etc, etc, etc, for 720 degrees.
There will be problems if it doesn't pass this test.

In fact, try this test with the old ROD/SPRING assembly before you take them apart.

When cutting the SPRING to 40 coils, smooth the end of the SPRING with a stone or diamond file if you don't want to cut up your fingers.
!
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Old 02-11-2019, 07:09 PM
mauserdad
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Thank you Sir. I have made this a Favorite so I can refer back to it. Ordered both springs from Wolf. Picked up 300rds of CCI standard velocity from Bass Pro today. Looking forward to shooting these.
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Old 02-19-2019, 04:23 PM
mauserdad
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I wanted to thank you all for the above advice. I also watched a video. With the postings and video and working slow and careful I was able to do it in about 45 mins. I was cleaning also. Removed firing pin and cleaned it also. Did cut new Wolf recoil spring to 40 coils. The old spring had 36 coils. The hardest part was getting the recoil spring plug out. I don't know if it was corrosion or the face was distorted a bit from years of use. I did get it out finally by plunging it and letting it fly forward many times. Yes, I had a small clear bag over it. Took some very fine emery cloth cleaned up the plug and that chamber. Fired standard velocity LR ammo. Worked perfect. Your all's instructions were the " Cats Meow" for doing this. Still have to do my Sport King. Again thanks.
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Old 02-22-2019, 06:08 PM
mauserdad
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Just finished the Sport King. Works great. Hardest thing is seating the recoil spring plug.
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Old 02-23-2019, 03:26 PM
mauserdad
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Well I did it again. It is a addiction. Picked up a HB Model, 4" barrel, very nice condition at a pawn shop today for $300 out the door. Has Franzite after market target grips. Now to get springs for this one.
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Old 02-27-2019, 08:51 AM
mauserdad
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Would it also be 40 coils on a new Wolf spring for the HB model? Thanks
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Old 02-27-2019, 10:00 AM
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Alan Aronstein, InterasrmsTx.com, has spring kits for the various model designations at a very reasonable price. He will have a spring kit specific to your model.

http://interarmstx.com/product-categ...-parts/page/3/

You can reach him at 713 446 6918 if you have any questions after looking at his web site.

VH

P.S. There is another gentleman who has a tool kit for swapping out the driver spring. It is really quite helpful, but I can't think of his name. Failing memory at the worst of times. Maybe he will see this thread.

Last edited by varmit hunter67; 02-27-2019 at 10:04 AM. Reason: addition
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  #11  
Old 02-27-2019, 10:30 AM
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Quote:
Originally Posted by mauserdad View Post
Would it also be 40 coils on a new Wolf spring for the HB model? Thanks
Basically, all type 2 take downs (button on top of slide, take down lever on right side of frame), use 40 coil springs.

Wolf generally furnishes longer springs then are needed.
You are expected to trim the spring(s) to the required length for the particular gun.
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Old 02-27-2019, 11:52 AM
mauserdad
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Thanks Gents. I had ordered Wolf springs from Wolf for my HD and my Sport King and had trimmed them to 40 coils and they worked just fine. I had noticed that in both cases that the original springs were 36 coils. I don't know if that is the way High Standard shipped them. Monday I had ordered a new Wolf spring from Wolf for the HB,and was just confirming the 40 coils. Now what I found interesting is that in the first two cases, Wolf also provided the firing pin spring with the recoil springs. When I ordered Monday the lady at Wolf said the HB firing pin spring is not provided for that model (?). Again thanks for all the input. Ed
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Old 02-27-2019, 01:27 PM
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I would expect a Sports King to require a 50 coil spring.
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Old 02-27-2019, 01:37 PM
mauserdad
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Thanks. If it gives me trouble I will reorder a new Wolf spring. I saved the trimmed piece from the Wolf spring. Would it be possible to add 10 coils to the guide rod behind the plug? Just a thought.
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Old 02-27-2019, 01:56 PM
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A 50 coil gun will probably work fine with 40 coils.

The problem being that using a “weak” recoil spring will beat up/damage the gun over time.

You can't add coils.
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