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Jess Money

Spring jig for Baikal

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I did a search but came up negative for the subject matter. I've been able to do most everything needed to get my M220 to run smoother....except for changing those blasted cocking rod springs! I would imagine someone on the forum has discovered a fairly simple method of compressing the springs in order to remove the retaining cross pin and top cap to release the springs. I'd really, please, appreciate any information on how you pards accomplish this.

 

 

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I did mine back in 2008 - assume the design hasn't changed. My bench vise has removable inners that rest on a small "shelf." As I recall, I removed the jaw liners from the vise so the ends of the struts would be supported from beneath, squared the strut between the jaws, and closed the jaws against the ends of the strut, drove the pin downward, then released pressure by slowly opening the vise. The factory springs are often said to be surplus Russian tank springs...that's not too far off!

 

CS

 

Edit to add: Lessons learned from working as a mechanic - compressed springs are trouble waiting to happen! Eye protection anytime you're decompressing anything bigger than a ball point pen spring!

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A kitchen fork slides over the rod and helps compress the spring as the rod is held in a vise. It only takes three hands and another body to find the pin and the spring on the first try.

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Put the compressed spring assembly in your vice with the top cap sticking out. Put a cloth over the vise to catch the cocking rod if it shoots out. Mine moved a little when I tapped out the pin but the cloth caught it. I used Vaquero hammer springs to replace the original springs so compressing them was easy.

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Thanks, everyone, for your replies. I tried using the fork like I do when changing Ruger springs but the Baikal spring just bends the fork. I was under the impression that a jig was required as someone had mentioned on another forum. I'll give the vice, hammer and punch method a try. Sounds like fun!

An additional question to those of you who have changed to a light set of springs. Have you had any problems with the hanger assembly under the barrels coming loose?

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My hangers are fine on mine. If you change to Ruger springs, get the heaviest ones that Wolff carries.

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JM, I forgot to mention I put the spring assembly in the vise lengthwise, with the top cap to the right. That way the vise jaws help keep some pressure on the spring to dampen the force when the pin comes out.

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I use a Bridgeport Mill, Them springs are a bugger.

Johnny M.

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"....Them springs are a bugger...."

 

AMEN! And they caused me to start drinking again. :lol:

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JM, I forgot to mention I put the spring assembly in the vise lengthwise, with the top cap to the right. That way the vise jaws help keep some pressure on the spring to dampen the force when the pin comes out.

 

Thanks for the tip, Doc! Good info.

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