Finally I found the time to dismantle my Morini 162EI to reset the trigger last Saturday, thinking in mind all the advise you two good guys had provided. After stripping the grip and the trigger mechanism from the frame, I tried to connect the trigger to the circuit board and discovered that it could work without any delay. The trigger was crispy and responsive like nothing have happened before.
When I assembled everything back the problem happened again. Finally I discovered that the problem was caused by the screw that mounted the grip to the frame, (the upper and longer one). As I remember that I had lost the original screw and the replacement was 1 - 2mm longer. It seemed that if I turned the screw too tight and the cocking process could not be completed, but how that also affected the dry fire I did not know. Now I filed the screw shorted and at lteast the problem was gone, I managed a 558 that afternoon.
Thanks for everyone.
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To: David M & S. Swartz
Moderators: rexifelis, pilkguns