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Old 02-06-2017, 10:51 AM   #1
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Recoil springs

This weekend I purchased a few spring kits from Kimber. Kimber clearly lists when you should replace your recoil spring. I have read my manual several times for my new Springfield Range Officer 5" 9mm Stainless and I couldn't find out when this spring should be replaced so I emailed Springfield. Today I received a response from them and they say it should be good for between 5000-7000 rounds. I looked up the 5" 9mm Kimber and they say 1800 rounds.

Can anyone tell me why one is 1800 rounds and one up to 7000 ?

It's not a flat wire spring and I can't imagine one spring is that much better than the other. I know the short answer is because that's what the manufacturer recommends but that seems like a big difference. Just curious if anyone could answer this question.
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Old 02-06-2017, 11:45 AM   #2
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That is a huge gap in the numbers of rounds fired before spring replacement for sure.

I said this on KT before, but years ago I would run both of my PC II { 9mm&45 acp} over 3000 rounds before I would change the recoil spring. Never had an issue shooting them with that many rounds on them and if I had I would have changed them at that time. Now neither of these were my carry gun at the time, strictly range guns so it wasn't like I was defending myself with them.

I change them around 2000 rounds now which is much closer to what the manual recommends...
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Old 02-06-2017, 12:44 PM   #3
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I know I've gone over the recommended rounds before changing my recoil spring on my Eclipse Pro and never had any issues but 5000-7000 is a big difference and I was just wondering why it's ok for one 1911 and not the other.
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Old 02-06-2017, 01:25 PM   #4
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The manual in my wife's BMW Z4 says to use only synthetic oil and change it every 10,000 miles. I use only synthetic oil but change it every 3000 miles. My mechanic says that straight 6 engine is bulletproof but if 10 is OK 3 is better. Better safe than sorry. So with your springs or my oil, it sure doesn't hurt to change them sooner.
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Old 02-06-2017, 03:06 PM   #5
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Originally Posted by JC45 View Post
This weekend I purchased a few spring kits from Kimber. Kimber clearly lists when you should replace your recoil spring. I have read my manual several times for my new Springfield Range Officer 5" 9mm Stainless and I couldn't find out when this spring should be replaced so I emailed Springfield. Today I received a response from them and they say it should be good for between 5000-7000 rounds. I looked up the 5" 9mm Kimber and they say 1800 rounds.

Can anyone tell me why one is 1800 rounds and one up to 7000 ?

It's not a flat wire spring and I can't imagine one spring is that much better than the other. I know the short answer is because that's what the manufacturer recommends but that seems like a big difference. Just curious if anyone could answer this question.
Kimber sells springs. Springfield does not.
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Old 02-06-2017, 03:24 PM   #6
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Originally Posted by Mike240 View Post
Kimber sells springs. Springfield does not.
Good answer Mike, but you can buy springs from them.
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Old 02-06-2017, 03:26 PM   #7
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Originally Posted by Cucamonga kid View Post
The manual in my wife's BMW Z4 says to use only synthetic oil and change it every 10,000 miles. I use only synthetic oil but change it every 3000 miles. My mechanic says that straight 6 engine is bulletproof but if 10 is OK 3 is better. Better safe than sorry. So with your springs or my oil, it sure doesn't hurt to change them sooner.
I agree it doesn't hurt.
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Old 02-06-2017, 03:42 PM   #8
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Originally Posted by Mike240 View Post
Kimber sells springs. Springfield does not.
BINGO.....Give Mike a cigar...

Kimber does sell springs and why wouldn't they say to replace the springs at intervals that isn't quite necessary ?? Why, because it's another stream of revenue for them...
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Old 02-06-2017, 04:00 PM   #9
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Like was stated. You can change your cars oil after every grocery run too. As far as spring go I let the gun tell me based on performance, load and what I see in tear down. I ran a Team Match 14k documented rounds on one spring with no issue or damage. I have said before I like Kimbers and find them to be my favorite production 1911. But they are not with out flaw. With the right extractor fitment and tuning and a properly reamed chamber they are not recoil
Spring dependent. Kimber like to blame issues on weak springs instead of buying a finish reamer more frequently.
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Last edited by Mike240; 02-06-2017 at 04:03 PM.
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