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Broken Mainspring


German Jim

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The mainspring broke on my 3rd Gen Colt! :angry: .  Would a Cimarron Pietta Parts Mainspring work as a replacement or would the NUMRICH mainspring part be a better choice?  I don't want any light springs, I just want as close to original as possible.

 

Thanks all.

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Well, Wyatt took care of you but to answer the question, any spring from an Uberti or Pietta should work.  Some springs may need shortening at the top end.

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Before fitting the new mainspring, be sure to burnish the edges/sharp corners on it with a smooth hard steel round rod

of some kind so there are no nicks or sharp spots along the sides/edges of the curved part.  This to remove any stressors that might result in future breakage.  

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Actually, Filing/Grinding/Sanding Main Springs is not a problem as long as one understands how NOT to overheat the spring and understands how to remove the Stress Risers.   Before reliable after-market main springs became commonplace, it was the only method to "Tune" main springs.  Just have to know what yer doing.

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