How to disassemble a T/C Icon firing pin

[Tozguy]

The mainspring on my Icon firing pin is wavy and rubs real bad in the bore of the bolt.
My search to find instructions on how to remove the mainspring has turned up nothing. It is not obvious to me how to go about it so if any of you have some pointers for me it would be much appreciated.

 

[Tozguy]

The cocking piece is screwed onto the back of the firing pin. There is some red thread locker in there so it took a bit of torque to get it started.
There is still a significant amount of preload on the spring once the threads are clear.

 

[tertiaryjim]

It's very common for the springs to touch the bore and should not cause any problems.
Those long springs,when compressed, want to try moving around and I know of no way to avoid that.
Don't think anyone has found a way to avoid it.
Is the bore rough with burs sticking out?
I've seen some really rough bores on some old military rifles but as long as no burrs protrude they are fine.

Is there some noticeable problem that makes you feel the bolt is at fault or are you just trying to speed lock time?

 

[Tozguy]

There is rubbing and then there is rubbing. The spring was exerting much pressure on the inside of the bolt. I could feel considerable drag when withdrawing the striker assembly from the bolt body. The ends of the spring were not ground square to the axis of the spring. The spring had been ground to some extent but this was very poorly done. Also, there is .040'' clearance between the spring and firing pin. It was the first time that I have seen a mainspring that 'bad'. Certainly not up to the standards of the rest of the rifle. The bolt bore seemed smooth enough.
The original set up shot fine but it bothered me how unnecessary the wavy the spring was and how much pressure it was putting where none was required. I was not concerned with lock time although i would bet that the excessive spring pressure on the pin and bolt did nothing good for lock time nor vibration.
After squaring the ends of the spring and bushing the spring at both ends to keep it centered, the spring is much better and rubbing a lot less than before. It was worth it just for the peace of mind.

 

[tertiaryjim]

It's often the little things that make a big difference.
TC seems to have built a good reputation on quality and customer service.
External fit and finish on their firearms sure improved a lot since their humble beginnings and they make some nice items.

 

[Tozguy]

I agree the overall quality of the rifle is impressive. Now that a few minor glitches have been fixed, my Icon works like a charm and shoots great!