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Thread: How important is it not to have a oil hole?

  1. #31
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    Quote Originally Posted by MASP7 View Post
    Ok, I tried it. (I'm trying to keep an open mind here...) I doesn't work.
    Even after fully compressing the spring, and trapping it through the weep hole, it still projects out the end of the receiver, gaining you nothing.

    You just can't trap enough of the compressed length to make a difference.
    It didn't work for you? I've assembled lowers that way, until I learned the trick using the takedown pin itself.
    They had no right to win. Yet they did, and in doing so they changed the course of a war...even against the greatest of odds, there is something in the human spirit - a magic blend of skill, faith and valor - that can lift men from certain defeat to incredible victory.

  2. #32
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    Guys, let's all step back and take a deep breath.

  3. #33
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    Quote Originally Posted by Dport View Post
    It didn't work for you? I've assembled lowers that way, until I learned the trick using the takedown pin itself.
    No, it didn't do anything, and I don't see how it could. The weep hole is way too close to the end of the spring hole to have any effect on the spring.
    Trapping the last 0.1" of the spring has no practical effect on the spring tension. The spring is still protruding out of the receiver, even when trapped at the weep hole.

    This is with all Colt mil-spec parts. Perhaps other lowers have the weep hole located in a different place allowing this technique to work. If so, I have never noticed. I currently only have Colt and Noveske lowers to try this on. The weep hole in the Noveske is in the same place as the Colt.

  4. #34
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    Quote Originally Posted by MASP7 View Post
    No, it didn't do anything, and I don't see how it could. The weep hole is way too close to the end of the spring hole to have any effect on the spring.
    Trapping the last 0.1" of the spring has no practical effect on the spring tension. The spring is still protruding out of the receiver, even when trapped at the weep hole.

    This is with all Colt mil-spec parts. Perhaps other lowers have the weep hole located in a different place allowing this technique to work. If so, I have never noticed. I currently only have Colt and Noveske lowers to try this on. The weep hole in the Noveske is in the same place as the Colt.
    Huh. I guess that could be. It's been a while since I've assembled a lower that way, like three years or so, but I could have sworn it worked for me.
    They had no right to win. Yet they did, and in doing so they changed the course of a war...even against the greatest of odds, there is something in the human spirit - a magic blend of skill, faith and valor - that can lift men from certain defeat to incredible victory.

  5. #35
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    If it was that easy, they wouldn't need to sell a tool to do it.
    It would be completely unnecessary.

  6. #36
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    Quote Originally Posted by MASP7 View Post
    If it was that easy, they wouldn't need to sell a tool to do it.
    It would be completely unnecessary.
    I don't need a handguard removal tool either, but they still sell one.
    They had no right to win. Yet they did, and in doing so they changed the course of a war...even against the greatest of odds, there is something in the human spirit - a magic blend of skill, faith and valor - that can lift men from certain defeat to incredible victory.

  7. #37
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    Quote Originally Posted by MASP7 View Post
    You did say-

    You never said you actually did it.




    Please, educate me...

    Here are the facts.
    The depth of the detent spring hole is 1.00"
    The weep hole is at 0.900"
    The detent spring is 1.100" long.

    How does your "Defensive Edge" technique work again?
    You depress the 1.100" detent spring into the 0.100" recess to capture it?

    Did you factor in the length of the detent itself?

  8. #38
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    Weep hole for front takedown pin

    Gentlemen,
    IIRC, the "weep" hole for the forward takedown pin detent spring was done in a product improvement enhancement program that became that grand old weapon that some of us old farts hold in high esteem: the M16A1. I recall that when the M16 was enhanced for adoption, the weep hole was put to do exactly what you gentlemen have mentioned. Drain water and/or oil the spring. Mainly to fight the spring and pin freeze up from corrosion. 'Nam was a very wet place during the Monsoons. History of the M16 system was such that it was adopted w/o a shakedown and several serious problems
    came to light. Us old Troopers remember the reports of the rifle jamming from carbon build up and several U S soldiers died with inop weapons in their hands(God keep and hold those brave men!) The resulting investigations revealed the problems and several improvements were instigated with the resulting weapon being adopted as the M16A1. So if you carry a rifle that gets wet and never dries out, you need a weep hole, other than that, don't worry about it. A civilian rifle will probably not see hostile conditions bad enough to cause a problem. A small drop of CLP or the like every now and then and no problems. FWIW- Carry On! JL
    Governor's Twenty!
    "Cry Havoc and Let Slip....."
    "It's Official...52% of Americans are Dumb Asses!"

  9. #39
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    Quote Originally Posted by Twosons View Post
    Did you factor in the length of the detent itself?
    Yeah, I did.
    Both theoretically and practically, by trying it.

    Look at the pic I posted.

    The depth of the detent spring hole is 1.00"
    The weep hole is at 0.900"
    The detent spring is 1.100" long.


    These are the "instructions" that were posted. Do they make sense?

    -------------------------------------------------------------------------------------------
    >Insert front pivot spring into receiver.

    >Depress with punch/pin past hole.
    (How is it possible to compress a 1.10" OAL spring into a recess that is 0.10" deep, and then capture it? Even capturing the small amount that is possible in the last 0.10" does not relieve enough spring pressure to keep the spring from protruding from the receiver, let alone inserting the detent in the hole without spring pressure.

    >Insert smaller diameter pin/punch into hole and capture (hold) spring

    >Remove first punch/pin.

    >Insert front pivot detent.

    >Insert front pivot pin.

    >Remove capture punch/pin and apply spring pressure to front pivot pin detent.
    -----------------------------------------------------------------------------------------------

    Also, notice that the "instructions" state to "Depress with punch/pin past hole", but he then retracts that and states "You just need to keep it from putting tension on the detent while you are assembling the front pivot...".

    Convenient backstepping, but unfortunally neither way works.
    The weep hole was never designed for assembly. It was designed for drainage and lubrication.

  10. #40
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    Quote Originally Posted by Lawdog-1 View Post
    I just noticed some difference about two LMT lowers that I bought after the Ban was over that these 2- LMT lowers don't have a oil hole on the side of the Rec at the front pivot pin spring. Do I need to add a hole on the side of the lower Rec to oil the spring at the front pivot pin?
    Just a guess, now I am shooting in the wind but maybe just maybe there was a step cut out to save time and make more money? Maybe it is a savings made to the customer. PWAs were the same way. But who knows?

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