COTEP.org  

Go Back   COTEP.org > Main Category > The Dremel Room

Reply
 
Thread Tools Display Modes
  #1  
Old 08-03-2011, 12:27 AM
Dave Waits's Avatar
Dave Waits Dave Waits is offline
Founding COTEP Member who is watching over us from above with God at a giant shooting range in heaven
COTEP Member
 
Join Date: Apr 2011
Location: Loveland, Ohio
Posts: 928
Thanks: 4
Thanked 229 Times in 59 Posts
Default Tuning Extractors and Extended Ejectors

Most times when you have trouble feeding or ejecting Empty cases, it isn't what you think. Magazines can cause alot of problems but, your Extractor and Ejector can too. 1911s are controlled-feed systems and the Extractor is a very important part of that.

As the slide comes forward and strips a round out of the magazine, it first contacts the ramp and skips upward, that's right, it doesn't slide up the ramp. When the nose strikes the top of the hood it starts to straighten out the round. The Rim then slides up under the Extractor and onto the breechface,held in place by said Extractor. If the Extractor is too tight(Too much tension) The round can't slide up behind the hook and you end up with a three-point Jam as the lobe of the Extractor pushes the rim and causes the nose to hit the ramp again. Too loose(Not enough tension) and the Extractor loses control of the round and you get a partial feed-jam.

There's a simple test for Extractor-Tension. All you need is the slide and a loaded round. Hold the slide in your hand and insert the rim of the round under the hook of the Extractor from below. It should fit a little loose but hold the round as you lightly shake the slide and even turn it upside down. If it's too tight, simply pull the Extractor halfway out and gently bend it to the right a little bit and try again. If it's too loose, bend it a little bit to the left and try again.

Next, we'll tune the Extractor lobe and hook. If you look at the diagram below you'll see that a USGI-Spec Extractor has something most commercial Extractors don't, a breakaway angle on the bottom of the hook.( See: #F on the diagram) This is very simple to do and only requires a small file. What this angle does is help direct the rim into the Extractor hook. This is simple filin and only takes about a minute to do but, your 1911 will feed alot more reliably with it. Next, we're going to shape the pad right behind the hook. (See: #C and D)Rounding it is a more accurate term. You need to get rid of the line you see about one-quarter of the way up the pad from the bottom and round it down to about half of the flat on the side. Takes about a minute to do.

Okay, now you have to stick the Extractor back into the slide for a minute. We're going to check to make sure the lobe isn't contacting the case inside the rim. Slide the loaded round back under the hook and look to see if it's contacting the case above the hook. If it is, look at the diagram again(See: #A) and take a little off the lobe where it contacts.Try it again, keep going gently and a little at a time until it doesn't touch the case.

Okay, take the Extractor out again and grab a couple of pipe-cleaners and your Hoppes and clean the gunk out of the Extractor-tunnel. Put it back together. you're done.

Here's the Diagram for the Extractor-nose.


Okay, if you're having Ejector problems and you have an extended Ejector there's a cure. Most of the newer 1911s come from the factory with lowered and flared Ejection-ports but, not all of them do. Plus, even those that do have problems sometimes. This is why Extended Ejectors were developed. The Extended Ejector starts contacting the rim sooner and kicks it out higher.
The problem with this is sometimes they kick the case straight back and contact your skull. Most Extended Ejectors come with a squared nose and ejection is variable with them. some work okay some don't. One famous company even has it bass-ackwards and makes an Ejector nose that drives the case down into chamber-area. I won't mention their name but Bill Wilson runs it.

Okay, what can you do? Well, if you look at the diagram below you'll see quickly that, the lower on the rim the nose contacts, the higher it will kick out the case. This is for Extended Ejectors, I'll explain what can be done to short standard Ejectors later. So, take out that little file again. Looking at the diagram you can see the green lines, this is what you want the nose to look like. Basically, it's a 10-degree downward and outward angle. This will contact the rim at the lowest point and kick the case upward and hopefully, over your head.

Okay, now that we've made the case eject higher, let's direct it a little. Looking down on the Ejector from the top(This is for both Extended Ejectors and standard Ejectors), you want to file a slight angle on the inside -edge of the nose(The side closest to the inside of the gun ). This angle has to go the entire side of the nose. This will direct the case to the right, usually cases with this angle will put the pile at about 4 O'Clock to the right.

See? This stuff isn't that hard to do people.

Here's the ejector Diagram.
__________________
Diligentia, Vis, Celeritas
COTEP#CBOB0428
NRA,GCA,OGCA, USAF,Msgt.(Ret.)

Last edited by Dave Waits; 12-28-2012 at 11:27 PM.
Reply With Quote
The Following 6 Users Say Thank You to Dave Waits For This Useful Post:
boatdoc (03-28-2019), KeystoneWeaponBK (02-21-2014), Lonestar grips. (02-21-2014), NAMVET72 (04-06-2015), sdmc530 (04-05-2015), Xbonz (02-21-2014)
  #2  
Old 08-03-2011, 09:05 AM
douglas_knott's Avatar
douglas_knott douglas_knott is offline
Founding Member
COTEP Member
 
Join Date: Apr 2011
Location: Missouri
Posts: 3,378
Thanks: 623
Thanked 399 Times in 111 Posts
Default

This is what i like to see Dave. Someone with your knowledge sharing it with the forum. This is a great write up and i know it will help some folks that want to learn more about their 1911's and their functions. Thanks again.
__________________
CBOB0405
︻┳═一
“When you get to the end of your rope, tie a knot and hold on. Help is on the way.” Author Unknown
Reply With Quote
  #3  
Old 08-03-2011, 09:48 AM
MajO's Avatar
MajO MajO is offline
Founding Member
COTEP Member
 
Join Date: Apr 2011
Location: Southeastern Pennsylvania
Posts: 2,520
Thanks: 595
Thanked 508 Times in 109 Posts
Default

+ 1
__________________
Joe O'Rourke
Joseph C. O'Rourke, Major, USAR (Retired)
COTEP # CBOB0480
NRA Member
:stand:
Reply With Quote
  #4  
Old 08-03-2011, 10:17 AM
herefordman1's Avatar
herefordman1 herefordman1 is offline
Founding Member
COTEP Member
 
Join Date: Apr 2011
Location: Ohio
Posts: 490
Thanks: 83
Thanked 32 Times in 7 Posts
Default

Good stuff to know. Thanks

Jim
__________________
COTEP 0341 2 Classics, 2 Valors (Blk & SS), PM7, PM9, Sportsman, Guardian, CCO, Heritage
Kimber UC II, DPMS AR 15, .22 Pistol Pack
Reply With Quote
  #5  
Old 08-03-2011, 11:49 AM
Feathermerchant's Avatar
Feathermerchant Feathermerchant is offline
Founding Member
COTEP Member
 
Join Date: Apr 2011
Location: Land of Enchantment
Posts: 506
Thanks: 116
Thanked 41 Times in 9 Posts
Default

Thanks Dave! I am printing this to keep in the notebook!
__________________
Life is either a daring adventure or nothing. In the presence of fate, inner strength is undefeatable!
CBOB0426
NRA Life Member
S&W, DW's, Colts, M&P's, Winchester
Reply With Quote
  #6  
Old 08-03-2011, 09:20 PM
BadOscar's Avatar
BadOscar BadOscar is offline
Founding Member
Admimberistrator
 
Join Date: Mar 2011
Location: Maine
Posts: 1,501
Blog Entries: 4
Thanks: 774
Thanked 412 Times in 72 Posts
Default

Great post Dave. On your ejector diagram I tune my race guns like the red line so the case is thrown as low as possible insuring it does not hit the scope mount and cause a stove pipe jam. One scenario that your diagram leaves out is the double angled ejector, where the top and bottom are at 10 degree angles creating a flat point some where in the middle. Most of my DW's were tuned like this from the factory with the contact point being 1/3 to 2/3 from the top. The idea here is you get the middle of the road ejection out the center of the port but with the single point of contact you also get the consistency. Here is a pic.

Reply With Quote
  #7  
Old 08-04-2011, 08:11 AM
DrHenley's Avatar
DrHenley DrHenley is offline
Founding Member
COTEP Member
 
Join Date: Jun 2011
Location: Columbus, GA
Posts: 3,634
Thanks: 68
Thanked 812 Times in 217 Posts
Default

What causes a 1911 to hit you in the forehead with the empty?

My Colt did that consistently at first, but after fiddling with it for TWO YEARS it now only does it occasionally. But it is still aggravating to get popped in the forehead now and then.

My DW NEVER EVER does that.
__________________
Jim
CBOB0497

"That rifle hanging on the wall of the working class flat or laborer's cottage is the symbol of democracy. It is our job to see that it stays there."
- George Orwell
Reply With Quote
  #8  
Old 08-04-2011, 12:55 PM
Dave Waits's Avatar
Dave Waits Dave Waits is offline
Founding COTEP Member who is watching over us from above with God at a giant shooting range in heaven
COTEP Member
 
Join Date: Apr 2011
Location: Loveland, Ohio
Posts: 928
Thanks: 4
Thanked 229 Times in 59 Posts
Default

Empties hitting you in the forehead. My Kimber used to do that, even sent it back to Kimber. They replaced the Extractor and the Ejector with an Extended version, still did it once in a while. Then I got an education over on 1911.Org. thanks to Niemis24 who, BTW, allows me to use his wonderful diagrams.Once I tuned my Extractor and angled the nose of the Ejector, the cranial-assaults ceased. Both my RIA and the Kimber kick the cases out high and at four O'Clock now.
If you don't have an Extended Ejector there is still something you can do.Take a small file(I use a flat Jewelers'file for all this) and file an angle on the inside of the Ejector nose. What you are doing is moving the point of contact to the left which causes the case-rim to roll off the angle after contacting the Ejector. File a little bit at a time and try it until it's ejecting well to the right side.
__________________
Diligentia, Vis, Celeritas
COTEP#CBOB0428
NRA,GCA,OGCA, USAF,Msgt.(Ret.)
Reply With Quote
  #9  
Old 08-04-2011, 07:44 PM
jmlutz's Avatar
jmlutz jmlutz is offline
Founding Member
COTEP Member
 
Join Date: Apr 2011
Location: De Leon,Texas
Posts: 4,337
Thanks: 1,494
Thanked 1,292 Times in 337 Posts
Default

Quote:
Originally Posted by Dave Waits View Post
Empties hitting you in the forehead. My Kimber used to do that, even sent it back to Kimber. They replaced the Extractor and the Ejector with an Extended version, still did it once in a while. Then I got an education over on 1911.Org. thanks to Niemis24 who, BTW, allows me to use his wonderful diagrams.Once I tuned my Extractor and angled the nose of the Ejector, the cranial-assaults ceased. Both my RIA and the Kimber kick the cases out high and at four O'Clock now.
If you don't have an Extended Ejector there is still something you can do.Take a small file(I use a flat Jewelers'file for all this) and file an angle on the inside of the Ejector nose. What you are doing is moving the point of contact to the left which causes the case-rim to roll off the angle after contacting the Ejector. File a little bit at a time and try it until it's ejecting well to the right side.
Thanks for the great post Dave, several years ago I had a 4 inch Kimber Covert that was just terrible about throwing the brass back in my face, I had a couple of local gunsmiths try to fix it, it didn't work. After a piece of brass hit my glasses so hard it put a chip in them, I sold the SOB, I felt bad for the buyer, but I warned him. It's bad when you want to duck as soon as as you pull the trigger because you're wary of your own gun........Mike
__________________
Mike
CBOBO359

Last edited by jmlutz; 08-04-2011 at 07:55 PM.
Reply With Quote
  #10  
Old 08-05-2011, 01:46 AM
skosh69's Avatar
skosh69 skosh69 is offline
Founding Member
COTEP Member
 
Join Date: Apr 2011
Posts: 11,000
Thanks: 2,242
Thanked 4,520 Times in 1,212 Posts
Default

Very nice Dave, you the man. Question? How did my name come up when you were describing "The side closest to the inside of the gun "???? hahaha...
Reply With Quote
Reply




All times are GMT -4. The time now is 07:38 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.