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Tuning an extractor.

11844 Views 25 Replies 15 Participants Last post by  Steve in Allentown
Are there any videos out there covering how to tune an extractor?:biggrin1:
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Well Brisk I am screwed then. I have no one in my circle to show me how to do it and videos do not help me much. I have always learned by doing things myself but with hands on instruction to help me along. After a few times I am good to go. From everything I read on forums I feel like knowing how to handle the firearm is not near enough, you must also know how to custom build one from scratch. I already tried detail stripping my trp and once I got to the safety I couldn't get the thing off to save my life. Can you imagine what I will do to the extractor if I messed with it?
i live fairly close to arvada - i can help with some of those questions if you wish.
I'm in Aurora, and wouldn't mind meeting up to learn a thing or two myself, if that could be arranged.
i live fairly close to arvada - i can help with some of those questions if you wish.
Well ok! I am moving at the end of the month. Once we get settled I may shoot you a pm. I would be very appreciative if you could help me.
well alright then. when y'all get set let me know. see if you can coordinate a time between both of you and we will set it up. i am free most sunday afternoons.
Sunday afternoons would actually be best for me once we are set up. When it's closer we can talk meeting places and get details ironed out. This is very generous of you to offer your help :nod:
A lesser-known aspect of extractor tuning is deflection, measured by the amount of the tensioning wall directly behind the claw that protrudes into the breech area and determined by the front pad that locates it relative to the breechface centerline.

Recently, I've seen several that have had excessive deflection, which can mimic the 3-Point Jam and the "Ka-Chunk" sound that goes with it...and can also cause the sometimes maddening intermittent failure to go to battery.

Excessive deflection has caused the ruination of many frame ramps by sending the amateur tuner to get Ye Olde Dremel for a feed ramp polishing, thus turning a simple problem into a complicated, expensive problem in quick time.

In the picture below is an example of way yonder too much deflection. In this instance...more than twice the amount that it needs. Depending on the distance between the two small, rectangular guide blocks... .480-.482, I like to see .010-.012 with a maximum of .015 inch. If all is within spec respective to that dimension, and the extractor and its channel, the bottom of the wall shouldn't need modification beyond lightly breaking the corner.

Study the photograph and see how the wall can easily act as a sort of "speed bump" to the case rim as it enters the extractor.
The owner of this one had tried to bevel and radius the bottom corner in an attempt to get the gun to behave, to no avail.

The distance between the guides was to spec at .482 inch, and the claw to wall depth optimum at .036 inch...and the wall showing in the breech was .030 by best eyeball estimate. Thankfully for him, he brought it to me before grabbing the Dremel. By carefully removing material from the wall and shortening the claw by a like amount, the pistol was up and running in about 15 minutes.

The basic problem was that the locating pad was too small, placing the wall and claw too close to the breechface centerline.

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Here's a link to a thread that covers how to correctly fit .45, 9mm, .38 Super, 9x23, .40, and 10mm internal 1911 extractors.

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