gerritm Posted June 1, 2017 Share Posted June 1, 2017 I have one in my DVC open gun. What is the lifespan of the spring and how can you tell if it is losing it's tension? What would be the malfunctions? I have about 5K rounds on it? What type and weight spring do you replace it with? gerritm Link to comment Share on other sites More sharing options...
redwoods Posted June 1, 2017 Share Posted June 1, 2017 are you talking about the recoil spring on the guide rod? If so, you would get malfunctions with feeding and other malfs that involve the slide cycling correctly. 5k rounds would be a good time to change it. proabably a 10 pound wolf or ismi spring. standard rate, not variable. These are 1911 recoil springs. Link to comment Share on other sites More sharing options...
Rolex Posted June 1, 2017 Share Posted June 1, 2017 STI stock recoil springs is 8ib I believe- Link to comment Share on other sites More sharing options...
gerritm Posted June 1, 2017 Author Share Posted June 1, 2017 Yes, the spring on the tool less guide rod. Shooting major, around 170PF. Having some random FTE and feeding issues. I put a new Brazos extractor in the other day and was testing it at the range. Ran about 50 rounds major with no problems. Had some of my PCC 9mm ammo and for grins tried it to see if it would cycle. Shot both the 147 BB with 3.1grs of Titegroup and the Eggleston 98gr with 4.4grs Titegroup and cycled them. Just thinking it probably shouldn't have cycled these so easily. Might be time to change the recoil spring. gerritm Link to comment Share on other sites More sharing options...
gerritm Posted June 1, 2017 Author Share Posted June 1, 2017 Called Dawson and it is a 9# Wolff Spring. Got a couple ordered. gerritm Link to comment Share on other sites More sharing options...
Jht05016 Posted June 3, 2017 Share Posted June 3, 2017 9 is pretty heavy for an open gun... get some 8s and 7s to try. Most open guns fall into those weights. Try multiple springs, but they probably came with an 8. Link to comment Share on other sites More sharing options...
Desmo412 Posted June 4, 2017 Share Posted June 4, 2017 Any more than an 8lb spring gives me severe dot dip when the slide closes Link to comment Share on other sites More sharing options...
gerritm Posted June 5, 2017 Author Share Posted June 5, 2017 According to Dawson and their chart they came with 9# springs. I will try it and maybe order an 8# just to see what the difference is. Have had no problems with the dot dipping or movement with the one in there. More just the random FTE's after about 5K rounds. Ran great for a long time. Thanks, gerritm Link to comment Share on other sites More sharing options...
gerritm Posted June 6, 2017 Author Share Posted June 6, 2017 Came with a firing pin spring. Good time to change that out also? gerritm Link to comment Share on other sites More sharing options...
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