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Gunsmith Help on Colt Trooper MKIII

Uintah
I recently acquired a Colt Trooper Mark III .22 LR from a guy who took the side plate off to clean and could not get it back together. I bought it in pieces. I have two reference books, one showing a trigger return spring with a small coil spring on it's forward arm, and another book with the breakdown showing a trigger return spring without a small coil spring. The books are the gun digest book of exploded views and the gun digest book of firearm assembly and disassembly. I have one small spring in the parts I think is the hammer strut spring, but could also be the small coil spring on the trigger return spring if one is required. The past owner told me all the parts were there, but I see I am missing the hammer strut spring guide(plunger), so there could also be a spring missing. Does the Colt Trooper MKIII with the target hammer/trigger have a small coil spring on the larger trigger return spring? Thank you for any assistance you may provide.
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  • TrooperAllen469
    The tiny little coil spring is for the cylinder latch. It fits in the rear of the latch, pushing it forward.
    The reinstallation of the side plate requires lining up the latch with the plunger on the frame that holds the cylinder. With your third and fourth hand, you can gently squeeze the plate back into place. No hammers allowed. O.K., so I exaggerate a little, but it is tricky. Since I generally am willing to pay good money for anything with "Trooper" or "Highway Patrolman" written on it, please take that to a gunsmith of good reputation for correct reassembly.

    Trooper 1st Class,Georgia State Patrol, Certified General Instructor, Firearms Instructor, Defensive Tactics Instructor, Armorer, Gunsmith, Former U.S.Navy 1st Class Petty Officer
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  • Uintah
    Trooper,
    Thank you for the reply. This Colt Trooper MK III seems to be a heavy sturdy revolver. It has the target trigger/hammer with the 6" barrel. It is in very nice shape. I look forward to getting it back together and seeing how it shoots. I do have the tiny coil spring in the shape of a square that fits under the cylilnder latch, and by keeping the plunger on the frame moved forward and lining the cylinder latch so it is even with the edge of the side plate it seems to fit back in well. I am wondering about the long spring that looks like a clothspin spring which sets on the bottom of the internal frame and returns the trigger after it is fired. One book shows a small coil spring slid over this larger clothspin shaped spring, while the other book and also Numerich shows no coil spring on this larger spring at all. I suspect it does not have one as I cannot figure what purpose it would serve, but as you guessed I have not been into many colt internal workings. I should have been more clear in my question: I am wondering if the small coil spring that fits on the trigger return spring may have been discontinued on the later Trooper Mark III's as this revolver is approx. 1980 manufacture? Your advice is good to seek a professional to check it out before firing this revolver.
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