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Old September 18th, 2018, 10:27 AM #1
lazarus lazarus is offline
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Colt official police timing issue

Anyone knowledgeable on Colts or revolvers in general? The Colt OP I picked up is just a hair out of time. The dealer told me before buying it. So I knew what I was getting in to. Here is the description.

DA sometimes faces slight extra resistance when the trigger is pulled slowly, but it isnít noticable on a fast pull and not always on a slow pull. Same in SA. A quick cock and it almost never happens, a slow cock sometimes it hangs a bit. So I am thinking that is the locking pawl and hand being out just a fraction. The pawl operates the moment the hammer starts to move, and appears to release when it should. So my guess is the top of the hand needs to be shortened maybe just a thousandth or an inch or two.

The next part is when operated slow, but only noticeable in SA, the locking pawl doesnít engage down fully in to the cylinder channel unless the hammer is moved past full cock (doesnít need to be moved much past it). Or when the trigger is pulled it rotates the cylinder that last fraction and the locking pawl drops in to the slot on the cylinder. When cocking it quickly, DA or slowly pulling the hammer past full cock and the locking pawl drops in to the cylinder recess and locks it up.

At a guess this means that the lower part of the hand needs to be lengthened a couple of thousandths by peening.

On the failure to lock up, even operated slowly about half the time it will drop the pawl in to the cylinder recess. No, none of this seems related to a specific chamber

The timing just seems ever so slightly off. My plan was to order a new hand from Numerich so I wasnít messing with my existing one. Then work with that one to get the timing right, realizing that the new hand might need significant fitting rather than just a tweak.

Thoughts? Or should I just work with the existing hand as the timing is only off a tiny fraction? Also does it sound like Iíve probably diagnosed the issues correctly and what needs to be done (shave the top of the hand a hair and add a hair to the bottom hook)?

Thanks!
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Old September 18th, 2018, 01:39 PM #2
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Typical for Colts . Yes , you need hand .
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Old September 18th, 2018, 01:44 PM #3
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Sounds like you have a good plan. I suggest fitting the replacement part as it is easier to remove material than to reshape by peening.
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Old September 18th, 2018, 01:52 PM #4
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You can stretch the hand as long as it's never had that done before. It's considered a normal part of Colt maintenance or at least used to be. If you buy a new one (if one can be found) it most likely will not be a drop-in...it has to be fitted.

Here is probably the best book you can own for the care and maintenance of Colt revolvers with the V-mainspring...https://www.amazon.com/Colt-Double-A...40_&dpSrc=srch
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Old September 18th, 2018, 03:41 PM #5
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Thanks all! Numerich has both new old stock and also new manufacturered hands for Python/Official Police (same hand and frame). I think new it is only $28.
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Old September 18th, 2018, 06:36 PM #6
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If you are in need, I have a few hammer assemblies that are for the Official Police. They clean up nicely and are new old stock. IM me if interested.
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Old September 19th, 2018, 03:01 PM #7
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I used a Numrich Python hand im my first model Trooper. A little stoning was necessary, but not much. It was more smoothing than altering.
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Old September 19th, 2018, 08:24 PM #8
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Good to know. With more reading up, I’ve found a lot of sources that have said the SA behavior is not A-typical for a Colt. That many if you slowly ease back the hammer will only lock-up when the trigger is actually pulled. If you cock the hammer quickly or pull the trigger for DA firing then it does lock up. Otherwise only lockup on trigger pull/sear release. The hesitation when cocking/pulling the trigger sometimes is being very slightly out of time.

So I will probably get a new hand and play with that. See if I can smooth it up some. For now I am going to take it to the range.
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Old September 21st, 2018, 12:12 AM #9
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Quote:
Originally Posted by lazarus View Post
Good to know. With more reading up, Iíve found a lot of sources that have said the SA behavior is not A-typical for a Colt. That many if you slowly ease back the hammer will only lock-up when the trigger is actually pulled. If you cock the hammer quickly or pull the trigger for DA firing then it does lock up. Otherwise only lockup on trigger pull/sear release. The hesitation when cocking/pulling the trigger sometimes is being very slightly out of time.

So I will probably get a new hand and play with that. See if I can smooth it up some. For now I am going to take it to the range.
Yes. When you shoot double action the inertia of the cylinder carries it around to the bolt. Freaked me out until I spoke to someone who had experience with them.
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Old September 21st, 2018, 07:42 PM #10
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Quote:
Originally Posted by K-43 View Post
Yes. When you shoot double action the inertia of the cylinder carries it around to the bolt. Freaked me out until I spoke to someone who had experience with them.
Definitely different from the S&Ws Iíve used.

But I like it a lot. It looks a little funny compared to a modern revolver, but it grew on me fast just looking at it in the display case. Just reminds me of all the cop and detective shows I watched as a kid in the 80s and early 90s (especially reruns). It feels really good in my hand. Canít imagine itíll feel bad shooting with the weight it has and 38sp. Iíd be shocked the thr barrel was shot out of a 38 special, but it is mirror bright with great rifling. I am really impatiently waiting to get it to the range.
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