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M1 Garand short stroke issue

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    M1 Garand short stroke issue

    hey everyone this is my first post. i signed up to figure this issue out. so my 1942 winchester m1 garand will not function. when fired it used to not eject the round the bolt would slide back about a half inch. i figured it may be the op rod so i sent it to columbus machine works. mike replaced the piston tip and guide lug and checked its proper straightness also said the gas tube was in spec. now after that it will eject the round but not chamber the next some rounds dont clear the receiver. i made sure to grease it well with amsoil grease made sure the gas hole is aligned well with the gas tube. the gas tube fits tightly with the barrel. the gas plug is solid no valve. ive tried different ammos intended for garands. replaced the op rod spring with an orion 7 spring (greased). was rebarreled by fulton armory is 1993 or was built by them at that time not sure. the rifle passes the tilt test with the stock on. the gun looks to be in great shape no rust or pitting anywhere. really not sure what the problem could be. the guy i got it from at a gunshow said i may need to hone the chamber which is od because im sure they would function with bits of sand or crp in the war. he is a garand expert apparently because hes worked on and sold them for years. any suggestions really beautiful gun that i wish worked. i also have no idea how these were reliable in the war. sorry about the photo had to resize. thanks

    #2
    Have you checked the gas cylinder to make sure it is in spec? Also if the chamber is rough or parked it can cause the same problem.

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    • starhobos
      starhobos commented
      Editing a comment
      thanks for the response. besides mikes inspection of the gas cylinder ive looked down it and i dont see anything odd. the chamber looks smooth but the brass ejected has some sliding marks on it. what is parked?

    #3
    Parkerized.
    m14brian

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      #4
      Unless a gas cylinder bore is obviously egg shaped, you can't eyeball a gas cylinder to check if it is in specification. You need a gauge. If the person you bought the rifle from is a "garand expert", it should have worked correctly from the beginning. I would ask him to fix the rifle before you spend more money on it.
      Looking for 16" SA bayonet Mfg 1918, S/N 1045220

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        #5
        Do you have the ability to measure the inside of the gas cylinder? If not take it to someone that can. Sounds like an oversize gas cylinder. A in spec M1 Garand is a extremely reliable weapon.

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          #6
          Were are you located???

          Comment


          • starhobos
            starhobos commented
            Editing a comment
            im in vancouver washington

          #7
          thanks for all the comments guys ill check into the gas cylinder asap. what tool works the best for measuring? and where is the ideal spot to measure the inside? how can i tell if the chamber is parkerized? i doubt the guy will fix it because i took it back to him and told him and he seemed irritated about it.

          Comment


            #8
            Lock the bolt back, take a flashlight and shine it into the chamber. If the chamber looks bright and shiny it not parkerized. If it looks dark and does not shine its parkerized
            While your at it you should take a chamber brush and solvent and clean the chamber. The chamber must be kept clean.

            Comment


              #9
              Originally posted by starhobos View Post
              ill check into the gas cylinder asap. what tool works the best for measuring? and where is the ideal spot to measure the inside? i doubt the guy will fix it because i took it back to him and told him and he seemed irritated about it.
              https://www.amazon.com/GARAND-GAS-CY.../dp/B00C7H0HI4

              Gauges are useful if you have multiple garands. The difference between "go" and "no-go" is very small and hard to measure without a gauge. It would not be cost effective if you only have one garand. In you case, I would probably just purchase another gas cylinder.
              Orlando on the forum sells quality parts. However, I do not know if he has any gas cylinders.
              Last edited by jak; 10-22-2016, 03:05 PM.
              Looking for 16" SA bayonet Mfg 1918, S/N 1045220

              Comment


                #10
                A cheap short cut way is take an empty Winchester belted mag. case and see if the belted part of the case will enter into the end of the gas cylinder where the gas plug screws into. The belted part of the case should enter the cylinder and pass the threads but not enter the smooth cylinder part. It is not precise but its a cheap gun show trick. A fired 300 Win Mag or fired 264 Win mag case will work. On a worn gas cylinder the case will slide into the cylinder past the threads and into the cylinder.
                Last edited by RDS; 10-22-2016, 01:36 PM.

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                  #11
                  so after taking a close look and doing some research looks like my barrel is in the white. the chamber is pretty dirty ill clean it real good and take it for a shoot tomorrow morning and let you guys know how it goes hopefully thats the problem. if not ill order a set of the gas cylinder gauges and double check. thanks a ton for the info guys! ive owned guns for a couple of years and never considered these aspects of inspection.

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                    #12
                    test fired the gun after throughly cleaning the chamber and it still didnt cycle. this time it did not eject the brass. checked the gas cylinder with 300 win mag shell and it didnt go past the threads but that feels a little iffy. hate to admit im thinking of trading for an m1a but i like the garand more

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                      #13
                      Are the gas port holes in the barrel and gas cylinder clean and not filled with gunk ? Do you have a friend who owns a garand that works correctly ? You can swap parts between the 2 rifles to isolate the problem.
                      Looking for 16" SA bayonet Mfg 1918, S/N 1045220

                      Comment


                      • starhobos
                        starhobos commented
                        Editing a comment
                        my brother has one that does the same thing but in much worse shape. im sure his gas cylinder is leaking because you can pul right off by hand. might try swapping some parts to try it.

                      #14
                      I am bothered by the seller stating the chamber may need to be honed. Sounds like he knew there was a problem. You may want to send it off to a gunsmith that works on M1s. The op rod was rebuilt and the gas cylinder is ok that leaves me to believe the chamber maybe the problem. What ammo are you using? M1 are not designed to work with steel case ammo.

                      Comment


                      • starhobos
                        starhobos commented
                        Editing a comment
                        yea sending it to a gunsmith is probably what ill do. i use what the seller gave me and also tried american eagle 150gr m1 ammo all brass case.

                      #15
                      this is the best angle i could get of the chamber the rest of the chamber looks quite like it

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