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Posted: 8/27/2013 9:00:57 PM EDT
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Hello all. Just out of curiosity i am wondering how to tell if the ejector spring needs to be replaced. i have an older ar and am gonna over haul what needs be but only want to change what is needed. I have a good idea how to tell when the extractor spring needs to go but I dont have any clue about signs of ejector spring wear signs.
Thanks for the help guys. |
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Quoted:
Hello all. Just out of curiosity I am wondering how to tell if the ejector spring needs to be replaced. i have an older ar and am gonna over haul what needs be but only want to change what is needed. I have a good idea how to tell when the extractor spring needs to go but I dont have any clue about signs of ejector spring wear signs. Thanks for the help guys. Is this just one of the maybe, might, what if problems we talked about already? Replace the ejector springs at the same time you replace gas rings, extractor springs and such ie.. rebuild your bolt. an before you start a new thread about how to tell when an if you need to replace gas rings an rebuild the bolt in your bcm you have only shot 300 rounds through, had some one sit on and thought it could get broke, an think your going o have so many problems with. Rebuild your bolt when the rings will no longer support the BCG with the bolt sitting upright unlocked on a flat surface. Have you got that ar armor's book yet? Have you read through any post to see if this has already been asked an answered? |
Replace it when it does this.
First sign of trouble was noticed spent casing were just sort of falling out of the ejection port. Used a vice and a couple sockets to hold the bolt and depress the ejector for removal. Now i have the Sinclair bolt vise which works great. Round count was 9,956 when i discovered the problem. |
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Quoted:
$2 part that will probably last longer than the bolt will. Replace it when you replace the bolt. H +1. Have a couple of high-mileage (> 15k) heavily abused bolts - one Colt, one FN. Have swapped these into different uppers at various times, though I (mostly) stopped doing so a few years back when the mileage climbed. Have never broken or replaced an ejector spring. Have broken one extractor spring and did not know till I took it apart for cleaning. The ejector spring tunnel would likely keep spring fragments aligned and captive so you might not even know it had broken. Ie., it would probably still get the cases out of the gun. You might see a change in ejection pattern, and that would trigger a look at the ejector spring. It is very easy to test ejector spring tension and feel with a punch. Have never needed to replace gas rings, though I did so just once b/c I read about that silly carrier weight test and was too inexperienced to know better. I don't care if the rings will not support the weight of just the bolt. I care about common sense tests: is it acting up, or has it developed obvious wear? The only small parts I will replace based on some principle are hammer/disco springs. I always inspect hammers, discos, firing pins for cratering, bolts, cam pins, extractors for any change in wear patterns. I guess I would discard a bolt that has outlived two barrels (ie., 40k+) on principle. Sam |
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Quoted:
+1. Have a couple of high-mileage (> 15k) heavily abused bolts - one Colt, one FN. Have swapped these into different uppers at various times, though I (mostly) stopped doing so a few years back when the mileage climbed. Have never broken or replaced an ejector spring. Have broken one extractor spring and did not know till I took it apart for cleaning. The ejector spring tunnel would likely keep spring fragments aligned and captive so you might not even know it had broken. Ie., it would probably still get the cases out of the gun. You might see a change in ejection pattern, and that would trigger a look at the ejector spring. It is very easy to test ejector spring tension and feel with a punch. Have never needed to replace gas rings, though I did so just once b/c I read about that silly carrier weight test and was too inexperienced to know better. I don't care if the rings will not support the weight of just the bolt. I care about common sense tests: is it acting up, or has it developed obvious wear? The only small parts I will replace based on some principle are hammer/disco springs. I always inspect hammers, discos, firing pins for cratering, bolts, cam pins, extractors for any change in wear patterns. I guess I would discard a bolt that has outlived two barrels (ie., 40k+) on principle. Sam Quoted:
Quoted:
$2 part that will probably last longer than the bolt will. Replace it when you replace the bolt. H +1. Have a couple of high-mileage (> 15k) heavily abused bolts - one Colt, one FN. Have swapped these into different uppers at various times, though I (mostly) stopped doing so a few years back when the mileage climbed. Have never broken or replaced an ejector spring. Have broken one extractor spring and did not know till I took it apart for cleaning. The ejector spring tunnel would likely keep spring fragments aligned and captive so you might not even know it had broken. Ie., it would probably still get the cases out of the gun. You might see a change in ejection pattern, and that would trigger a look at the ejector spring. It is very easy to test ejector spring tension and feel with a punch. Have never needed to replace gas rings, though I did so just once b/c I read about that silly carrier weight test and was too inexperienced to know better. I don't care if the rings will not support the weight of just the bolt. I care about common sense tests: is it acting up, or has it developed obvious wear? The only small parts I will replace based on some principle are hammer/disco springs. I always inspect hammers, discos, firing pins for cratering, bolts, cam pins, extractors for any change in wear patterns. I guess I would discard a bolt that has outlived two barrels (ie., 40k+) on principle. Sam +1 What I'm doing a lot more than actually cleaning my rifle is inspecting the parts for breakages or unusual wear. H |
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