The 1910 improvements did away with the typical V-spring to return the top lever. When these break, the game is over and the lever must be returned by the thumb to lock the action, and it will not stay locked when shooting.
The newer design which your gun has, has a coil spring contained in a tube to return the opening lever, which when it breaks, still functions. This is just a guess but with a little play I would say the coil spring has broken but is a little shorter because it is in two pieces inside the tube. You have to move it the 1/16 inch before the plunger inside the spring engages the opening lever and you feel pressure to open the action.
If it is, springs should still be available from Numrich or someone here. A thirty minute repair if my guess is correct. These springs are generic, i.e. any gauge will work.
|