Receiver problem..looking for ideas..

JeffJ · June 22, 2012, 19:22

OK gun shoot 18 inches left at 50 yards..so shlo and I find some run out in the barrel and figure that is the issue..so I get an stg barrel screwed on and timed and...it shoots 24 inches left at 100 yards..some nice groups though...

Could the Bore and threading for the barrel be out of alignment? If so how can you check that and can it be corrected/compensated for by machining and adding a breech washer..or is it now a paper weight and I should go order a DSA??

It's an old coonan (not the new ones) that I had been running with an eotech for years.

Nulook45 · June 23, 2012, 02:26

Sounds like you are over tighting the barrel . Slow down and watch how the front sight times up it should be straight up at 12O.clock without overtighting the barel if its lose at 12 then you can shim the barrel or you can chuck it up in a lathe and turn a few thousands off the shoulder till it times properly. or you can just pay Mark at ARS to time the rifle and reset the headspacing me i think Mark's money well spent as i dont own a lathe

shlomo · June 23, 2012, 09:55

Bring it over.

We'll mill off the top of the gas block down to the regulator, fill the dovetail in the lower, and put on the Eotech.

Done.

JeffJ · June 23, 2012, 11:03

Quote:

Originally Posted by shlomo

Bring it over.

We'll mill off the top of the gas block down to the regulator, fill the dovetail in the lower, and put on the Eotech.

Done.

lol..I did find out a way to check it for straightnes...and yes coming out of the receiver it ain't straight....

Receiver is not threaded straight...

The Johnson luck strikes again....

FUUN063 · June 23, 2012, 11:33

WTH are you and shlomo doin' over there?! Crooked barrels and such.

May I make a suggestion? You could contact Dan Coonan and run it by him. Maybe a new receiver would fit the bill. I would if it were my company and it seems he runs it just about like I would. Good luck.

Leland

JeffJ · June 23, 2012, 13:30

Quote:

Originally Posted by FUUN063

WTH are you and shlomo doin' over there?! Crooked barrels and such.

May I make a suggestion? You could contact Dan Coonan and run it by him. Maybe a new receiver would fit the bill. I would if it were my company and it seems he runs it just about like I would. Good luck.

Leland

Great idea, sent them an email..we'll see..

JeffJ · June 25, 2012, 13:25

Well I just talked to the coonan folks, and they will credit me about what I paid for it towards a new one (can't ask for more than that considering its age) ...only issue is they are a few months behind...

shlomo · June 25, 2012, 13:27

Quote:

Originally Posted by JeffJ

Well I just talked to the coonan folks, and they will credit me about what I paid for it towards a new one (can't ask for more than that considering its age) ...only issue is they are a few months behind...

I'll bet your gunsmith is relieved that he won't have to dick around with it....

ce · June 25, 2012, 13:42

Not as relieved as Gunplumber, he'd be so mad he'd be shakin' like a dog shittin' a peach pit. He hates resetting headspace.

JeffJ · June 25, 2012, 14:38

Quote:

Originally Posted by shlomo

I'll bet your gunsmith is relieved that he won't have to dick around with it....

I bet he is!! But I have other projects in mind!

JeffJ · June 25, 2012, 14:47

Quote:

Originally Posted by shlomo

I'll bet your gunsmith is relieved that he won't have to dick around with it....

Actually ..I will need him to put the para cut in it....

shlomo · June 25, 2012, 14:59

Quote:

Originally Posted by JeffJ

Actually ..I will need him to put the para cut in it....

Here's a little hint to help keep him happy--bring beer, and decent stuff, too.

I know I would if I was you.

shlomo · June 25, 2012, 15:00

Quote:

Originally Posted by JeffJ

I bet he is!! But I have other projects in mind!

Let me rephrase:

Bring lots of beer.

JeffJ · June 25, 2012, 17:39

Quote:

Originally Posted by shlomo

Let me rephrase:

Bring lots of beer.

**stimpsonjcat** · July 05, 2012, 22:54

Yeah I put a Coonan together last year and when I went to time it I was all WTF?

Bbl bent? Nope.

Checked receiver face and it was off.

shlomo · July 05, 2012, 23:20

Quote:

Originally Posted by stimpsonjcat

Yeah I put a Coonan together last year and when I went to time it I was all WTF?

Bbl bent? Nope.

Checked receiver face and it was off.

Seems appropriate for a hockey thug to have a receiver with the faceoff.

JeffJ · July 06, 2012, 08:48

Quote:

Originally Posted by stimpsonjcat

Yeah I put a Coonan together last year and when I went to time it I was all WTF?

Bbl bent? Nope.

Checked receiver face and it was off.

Just curious, how do you check it?

JeffJ · July 06, 2012, 08:50

Quote:

Originally Posted by shlomo

Seems appropriate for a hockey thug to have a receiver with the faceoff.

Thug has many negative connotations, the proper term is "enforcer" thank you very much..

shlomo · July 06, 2012, 17:33

Quote:

Originally Posted by JeffJ

Thug has many negative connotations, the proper term is "enforcer" thank you very much..

They got a town in Massatoochits named for guys like you.

Mah-blehead.

**skeeterbay** · July 06, 2012, 21:14

Shlomo, I didn't realize you had a mill and a shop all set up down there. Can I send down a Fal for some work. It won't be much of a job for you. Just need an Imbel converted to belt fed and cut the barrel back to 18 inches so I can carry it under my trench coat.

JeffJ · July 06, 2012, 21:49

Shlomo preaching to the chior..

shlomo · July 06, 2012, 22:03

Quote:

Originally Posted by JeffJ

Shlomo preaching to the chior..

I was you, I wouldn't trust a guy like that to work on my shit.

I'm just sayin'.

shlomo · July 06, 2012, 22:06

Quote:

Originally Posted by skeeterbay

Shlomo, I didn't realize you had a mill and a shop all set up down there. Can I send down a Fal for some work. It won't be much of a job for you. Just need an Imbel converted to belt fed and cut the barrel back to 18 inches so I can carry it under my trench coat.

Great. Another thing for me to spend idle time burnin' brain cells on. Might have time now though, since that Jeff guy lost my number.

**L Haney** · July 07, 2012, 06:31

Quote:

Originally Posted by JeffJ

Thug has many negative connotations, the proper term is "enforcer" thank you very much..

So how does a hockey player on a horse tun into a 'regulator'? Do they make stirrups for skates?

shlomo · July 07, 2012, 06:46

Quote:

Originally Posted by L Haney

So how does a hockey player on a horse tun into a 'regulator'? Do they make stirrups for skates?

If you tell me that you watched "The Missouri Breaks" recently, I will be weirded out.

JeffJ · July 07, 2012, 07:38

Quote:

Originally Posted by L Haney

So how does a hockey player on a horse tun into a 'regulator'? Do they make stirrups for skates?

I have no idea what your talking about, Never saw The Missouri Breaks

**L Haney** · July 07, 2012, 08:04

Quote:

Originally Posted by shlomo

If you tell me that you watched "The Missouri Breaks" recently, I will be weirded out.

"The sound that just woke you up was me cuttin' your throat. "

Yep, Wednesday night. So go ahead and be weirded.

shlomo · July 07, 2012, 08:12

Quote:

Originally Posted by L Haney

"The sound that just woke you up was me cuttin' your throat. "

Yep, Wednesday night. So go ahead and be weirded.

Dude.

I bought that damn thing for three bucks as an afterthought when I was out replacing some broken sunglasses, and watched it that night.

Wednesday night.

Color me weirded.

mark2 · July 08, 2012, 21:06

Quote:

Originally Posted by JeffJ

Just curious, how do you check it?

Gotta say, I've got the same question myself....

**stimpsonjcat** · July 12, 2012, 15:48

Well, in this case when we got it put together it wouldn't time properly.

Looking down the bbl/receiver it looked like the bbl was bent.

So we took the bbl off and chucked it up in the lathe between centers to watch it dance, BUT, it looked pretty darn true!

So then I stuck a different bbl on the receiver and it did the same thing.

That was enough for me to blame the receiver and I sent the owner off to talk to Dan. Customer later called me back to say Dan had confirmed some of these got loose.

June 22, 2012, 19:22	#1
JeffJ Registered FALaholic #: 5212 Join Date: Jan 2002 Location: Marietta, GA Posts: 1,971	Receiver problem..looking for ideas.. OK gun shoot 18 inches left at 50 yards..so shlo and I find some run out in the barrel and figure that is the issue..so I get an stg barrel screwed on and timed and...it shoots 24 inches left at 100 yards..some nice groups though... Could the Bore and threading for the barrel be out of alignment? If so how can you check that and can it be corrected/compensated for by machining and adding a breech washer..or is it now a paper weight and I should go order a DSA?? It's an old coonan (not the new ones) that I had been running with an eotech for years.

June 23, 2012, 02:26	#2
Nulook45 Registered FALaholic #: 54692 Join Date: Jul 2010 Location: Pataskala,Ohio Posts: 65	Sounds like you are over tighting the barrel . Slow down and watch how the front sight times up it should be straight up at 12O.clock without overtighting the barel if its lose at 12 then you can shim the barrel or you can chuck it up in a lathe and turn a few thousands off the shoulder till it times properly. or you can just pay Mark at ARS to time the rifle and reset the headspacing me i think Mark's money well spent as i dont own a lathe __________________ There is no problem that cant be solved with the proper application of high explosives

July 05, 2012, 22:54	#15
stimpsonjcat Windoze free since 1-2010 Silver Contributor FALaholic #: 470 Join Date: Jul 2000 Location: Dawsonville, GA Posts: 4,196	Yeah I put a Coonan together last year and when I went to time it I was all WTF? Bbl bent? Nope. Checked receiver face and it was off. __________________ peace! Happiness=UPS+ORMD "Your 8mm FAL is like a deuce coup with a Ferrari pancake 12 under the hood and a Jaguar rear end. It just kinda transcends cool into fantasy."- USMC 0341 "The stimpgewehr is the reason Waldo is hiding."- Kotengu Cause I can still hear his voice when I put it to my shoulder, "A guns like a woman son, it's all how you hold her."

July 06, 2012, 21:14	#20
skeeterbay Veteran Member Bronze Contributor FALaholic #: 20461 Join Date: Jul 2006 Posts: 1,772	Shlomo, I didn't realize you had a mill and a shop all set up down there. Can I send down a Fal for some work. It won't be much of a job for you. Just need an Imbel converted to belt fed and cut the barrel back to 18 inches so I can carry it under my trench coat. __________________ 'S Rioghal 'Mo Dhream Ard Choille!

July 12, 2012, 15:48	#30
stimpsonjcat Windoze free since 1-2010 Silver Contributor FALaholic #: 470 Join Date: Jul 2000 Location: Dawsonville, GA Posts: 4,196	Well, in this case when we got it put together it wouldn't time properly. Looking down the bbl/receiver it looked like the bbl was bent. So we took the bbl off and chucked it up in the lathe between centers to watch it dance, BUT, it looked pretty darn true! So then I stuck a different bbl on the receiver and it did the same thing. That was enough for me to blame the receiver and I sent the owner off to talk to Dan. Customer later called me back to say Dan had confirmed some of these got loose. __________________ peace! Happiness=UPS+ORMD "Your 8mm FAL is like a deuce coup with a Ferrari pancake 12 under the hood and a Jaguar rear end. It just kinda transcends cool into fantasy."- USMC 0341 "The stimpgewehr is the reason Waldo is hiding."- Kotengu Cause I can still hear his voice when I put it to my shoulder, "A guns like a woman son, it's all how you hold her."

June 23, 2012, 09:55	#3
shlomo Registered FALaholic #: 12779 Join Date: Dec 2003 Location: elsewhere Posts: 11,994	Bring it over. We'll mill off the top of the gas block down to the regulator, fill the dovetail in the lower, and put on the Eotech. Done.

June 23, 2012, 11:33	#5
FUUN063 Computer Illiterate Bronze Contributor FALaholic #: 35576 Join Date: Apr 2008 Location: Converse, Indiana Posts: 4,574	WTH are you and shlomo doin' over there?! Crooked barrels and such. May I make a suggestion? You could contact Dan Coonan and run it by him. Maybe a new receiver would fit the bill. I would if it were my company and it seems he runs it just about like I would. Good luck. Leland

June 25, 2012, 13:25	#7
JeffJ Registered FALaholic #: 5212 Join Date: Jan 2002 Location: Marietta, GA Posts: 1,971	Well I just talked to the coonan folks, and they will credit me about what I paid for it towards a new one (can't ask for more than that considering its age) ...only issue is they are a few months behind...

June 25, 2012, 13:42	#9
ce Registered FALaholic #: 373 Join Date: Jul 2000 Location: New Mexico Posts: 5,905	Not as relieved as Gunplumber, he'd be so mad he'd be shakin' like a dog shittin' a peach pit. He hates resetting headspace.

July 06, 2012, 21:49	#21
JeffJ Registered FALaholic #: 5212 Join Date: Jan 2002 Location: Marietta, GA Posts: 1,971	Shlomo preaching to the chior..

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