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5/8/2011 8:07:56 AM EDT
I would like to ask if anyone knows the size and spring tension on a sidefolder push button lever spring?

Also, would you happen to know where I could order a replacement spring that meets such requirements?

Please feel free to correct me if my terminology is incorrect.

Thanks,
Drew
5/8/2011 10:34:58 AM EDT
[#1]
Check your local ACE hardware store. They sell a wide assortment of springs. Most under $2.

I found one there a few years ago that exactly matched the spring in my Bulgy SF stock. Only difference was it was galvanized vice a black oxide finish. Same excellent tension that'll have you sweating bullets trying to install it.

No, I don't remember the stock number. Its just a spring, not rocket science. Head over to you local hardware store!
5/8/2011 1:25:24 PM EDT
[#2]
I asked the question not too long ago and never got a response.

I want to change mine also.  I'll pull it out, get the dimensions, and see if I can get the spring constant somehow.

One thing I did was completely disassemble mine and clean it up.  It improved the lockup considerably.
5/8/2011 5:18:38 PM EDT
[#3]
I lube mine with red bearing grease. My Bulgy one fitted perfectly and needed no filing work to perfect it.

I have a DPH one that needed some filing work and then it too worked perfectly.

Just take the old spring to a good hardware store. Compare the length and wire size to what they have. Just squeeze to feel the differences in tension they offer.
5/9/2011 9:08:59 PM EDT
[#4]
I measured my spring:

OD: 0.225"
ID: 0.145"
Coil Dia: 0.040"
Uncompressed Length: 1.302"

15 active coils
Both ends closed and ground

Spring constant: 40 lbs/in

ID of spring hole: 0.025"

I've checked Mcmaster and Century spring, but nothing fits exactly.  If you go up to a 1.5" length, 7/32 OD, and a stiff spring, you should be good.
5/10/2011 4:06:23 AM EDT
[#5]
The tubular spring of the push buton should be something that would work.   I've seen them in those smaller sizes.

Now the lever-type Romanians?  Try finding a spring for them, I spent a couple months looking and found zilch.
5/10/2011 5:35:34 AM EDT
[#6]
I will assume that you are speaking of the push button romanian side folder. Believe it or not, the long spring mainspring of a sig sauer P228 pistol cut down will fit. These long mainsprings are currently being replaced with shortened springs and the older ones are out there.

hope it helps.
5/11/2011 5:28:01 PM EDT
[#7]
Quoted:
I measured my spring:

OD: 0.225"
ID: 0.145"
Coil Dia: 0.040"
Uncompressed Length: 1.302"

15 active coils
Both ends closed and ground

Spring constant: 40 lbs/in

ID of spring hole: 0.025"

I've checked Mcmaster and Century spring, but nothing fits exactly.  If you go up to a 1.5" length, 7/32 OD, and a stiff spring, you should be good.


Thanks,  this is exactly what I needed.

The spring is for a Bulgarian sidefolder.

Thanks,
Drew


5/11/2011 5:39:04 PM EDT
[#8]
Did you find a spring that fit the measurements?
5/12/2011 5:15:53 AM EDT
[#9]
Quoted:
Did you find a spring that fit the measurements?


I plan on heading to a few hardware stores and equipment shops later this week.

I work in a predominantly farming area and there are a lot of specialty shops.

There is a nut and bolt shop next to my work that mainly only sells those 2 items.
I should be able to find something that will work.

If not, then I will order on the internet.

Thanks again guys for all the help.

Drew


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