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Mainspring doesn't fit in seat (P228) Login/Join 
Junior Member
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Hi all,
I've got a 1994 P228 that I've installed a P229 E2 grip onto (including swapping out the hammer seat/strut and trigger bar spring). I installed a Wolff 18# mainspring (part number 32418) and was experiencing light strikes. Ordered a 20# spring (PN 32420) and when I tried to install it, it wouldn't fully seat in the plastic hammer seat, so when reassembled, the mainspring is at full compression immobilizing the action. The 18# spring fits and functions just fine (except for the light strikes).

Wolff said their spring diameters are in spec and to call Sig. Sig said it's an aftermarket spring and they won't comment on it and that I should post here for some help.

Did I get a dud spring? Do I need a new mainspring seat? Something else I haven't thought of?
 
Posts: 3 | Registered: January 04, 2022Reply With QuoteReport This Post
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Picture of rmfnla
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Pictures would help...


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Posts: 135 | Registered: August 21, 2021Reply With QuoteReport This Post
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20# spring on the right, 18# on the left
https://photos.app.goo.gl/N1HzQL7Yy1m5LUNZ6

18# spring fully inserted into the hammer seat:

https://photos.app.goo.gl/ctJrN1kd8xF2geHa6

20# spring doesn't even go in at all:

https://photos.app.goo.gl/tgKG25Q9if3x8jQH9
 
Posts: 3 | Registered: January 04, 2022Reply With QuoteReport This Post
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I have always had good luck with Wolff springs, but this looks like their error. Send them the OD measurements of the two springs, explaining that the larger one won't fit the mainspring seat? Good luck and keep us posted please. And if you can't get satisfaction from Wolff, contact me as I might have a 20# spring you can have.


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Posts: 8576 | Location: UT | Registered: December 05, 1999Reply With QuoteReport This Post
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