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Attention IZH-35M Owners

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Post by fc60 4/5/2024, 11:02 am

Greetings,

Need some help reverse engineering a recoil spring for the IZH-35M (IVAN)

Measure a NEW spring, please.

Free Length =

Number of coils =

Outside Diameter =

Wire Diameter =

Cheers,

Dave
fc60
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Post by PhotoEscape 4/5/2024, 11:51 am

Dave,

I am not sure if one spare I have is new or previously used.  It came from abroad along with some other parts for IZH-35M.

Free Length = 140mm

Number of coils = 74 with two on each side compressed.  Will email pictures.

Outside Diameter = 4.6mm

Wire Diameter = 0.60mm

AP
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Post by gstfsnbgs 4/5/2024, 3:56 pm

I checked an extra spring for my IZH. It looks like it might be slightly used, but dimensions are about the same.

Free length: 5.620" 140mm
74 coils
Outside dia. .185" 4.7mm
Wire dia. .024" .6mm

Hope this helps as it would be nice to have sources of spare parts for these.

gstfsnbgs

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Join date : 2021-07-25

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Post by Wobbley 4/5/2024, 4:48 pm

Here is a company that makes springs…and their design based on these numbers..Attention IZH-35M Owners Img_0415

The company is
Access spring in Colton CA.
Wobbley
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Post by fc60 4/5/2024, 7:11 pm

Greetings Ashley,

That spring is very close.

The overall length of 106.7mm is short of the 140mm quoted above.

I wonder if stretching it to slightly over 140mm (145mm-150mm), tempering it, then cold setting it would bring it to 140mm?

I have enough data to fire up the Compression Spring calculator to play "What if".

Cheers,

Dave
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Posts : 1377
Join date : 2011-06-11
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Post by K38 4/12/2024, 11:37 am

I have a main spring that I am 100% sure has never been put in a gun since my IZH was shipped to me from Don Nygord

Free Length 137mm

Coils -- 74

Outside diameter  4.61mm

Wire  diameter. .6mm

Mitutoyo Digimatic Caliper 500-196-30
Mitutoyo Scale 182-207

Best of Luck,

Let us know how it turns out.

D.

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