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Direction Of Blish Lock


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#1 steeltoe1978

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Posted 01 March 2006 - 07:03 PM

Ok, this is a bit embarassing, but here goes. I took apart my 1928 thompson for cleaning, and I can't remember which way the blish lock goes back into the bolt. It's the H style one... and it even has the word "UP" printed on it with an arrow, but which direction is considered to be up?! Should the word up be facing towards the top of the gun as if I were holding it to fire it, and the arrow facing the muzzle of the gun? I feel a bit stupid asking this, but I have been googling the web and can't find a picture. Thanks for your help.


Edited by steeltoe1978, 01 March 2006 - 07:19 PM.

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#2 Bob

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Posted 01 March 2006 - 07:25 PM

Up is just that, "UP". so if the receiver is "UP" side down put the lock "UP". The "UP" goes the same direction as the bolt.

Hope that helps slap.gif
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#3 steeltoe1978

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Posted 01 March 2006 - 07:31 PM

Ok, I tried that, but it does not seem right.... then again, I do not know what the correct way is at this point....

Let me rephrase...

currently, on my table, I have the upper receiver laying with the front hand-grip facing towards the ceiling. Should I be able to see the word "UP" when I slide the blish lock in, or should that word be facing the table so that I can't see it?
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#4 Junebug

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Posted 01 March 2006 - 07:49 PM

Go to www.gunpics.net. There's a good little "how-to" on there for M1928A1 Thompson disassembly with pictures for every step. Just click on "Disassembly" after you have selected American Weapons, and M1928A1 Thompson. Hope this helps!

Edited by Junebug, 01 March 2006 - 07:50 PM.

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#5 Bob

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Posted 01 March 2006 - 07:54 PM

It only fits one way ;-)
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#6 steeltoe1978

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Posted 01 March 2006 - 08:16 PM

QUOTE (Bob @ Mar 1 2006, 07:54 PM)
The word "UP" should be facing the table (and the arrow pointing to the rear of the receiver) . That is, after the cocking knob goes in first, then insert lock then bolt.

just tried that... and it took me 5 mins to get it back out again... I don't think that's it...
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#7 21 smoker

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Posted 01 March 2006 - 08:20 PM

Don`t mean to contradict you Bob,..however if the receiver is upside down,for disassembly,...the blishlock should be installed so you can read `up`and the arrow facing forward pointing to the breech...otherwise the ears of the blishlock will contact the felt pads of the oiler...hth... wink.gif
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#8 JimFromFL

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Posted 01 March 2006 - 08:20 PM

Here are two photos of the bolt and blish from my newly acquired parts kit.
Sorry about the grease as it has yet to be cleaned, but you can just barely see the UP.

user posted image

user posted image
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#9 steeltoe1978

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Posted 01 March 2006 - 08:35 PM

THANK YOU ALL SO MUCH FOR THE HELP! JimFromFL, thank you for taking the time to take and post the pictures!!!! I've got it now! Thanks again! biggrin.gif
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#10 CAL7

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Posted 01 March 2006 - 10:55 PM

21 Smoker knows what he is saying. I saw him at the Hernando shoot on Sunday and he showed me the proper orientation of the blish lock. Definitely UP is as you look at it when assembling the group, i.e. down when in the gun.
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#11 Bob

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Posted 01 March 2006 - 11:46 PM

Ok, so I'm an idiot. I looked at an assembly in my parts box and saw it assembled wrong. You are right the flat side goes against the bolt. So "UP" is Up when looking into the receiver. Think I need more sleep, these 14hr days are starting to make me silly.
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#12 21 smoker

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Posted 02 March 2006 - 08:19 AM

Bob,..again I`m not flaming here...they will assemble both ways,..however if you have a copy of ATII,page 406, there is an excellent photo of a complete bolt,actuator and blishlock..hth.. wink.gif
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#13 JimFromFL

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Posted 02 March 2006 - 09:46 PM

QUOTE (CAL7 @ Mar 1 2006, 10:55 PM)
21 Smoker knows what he is saying. I saw him at the Hernando shoot on Sunday....

Hey, I don't know there were other Floridians here.
Let me know if you plan on heading out to the next Hernando show although it may be a bit too hot.
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#14 21 smoker

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Posted 03 March 2006 - 06:58 AM

Jim,..I have invited you personally to the Hernando shoot in the past but you told me you were covered up with work....I know the feeling...July 4th is the next big shoot,however a group of us usually plan a couple of informal shoots in between the big ones.The Hernando Sportsman range is very NFA freindly and usually makes room for us even when there is another event going on. I will e-mail you the next time me and the boys drag out the toys... wink.gif

btw,check out Subguns,NFA archives,scroll to the Hernando thread and click on the two guys who posted pics...that`s me over the 42 on the AA tripod and my `Hardware table`( blatant self promotion) biggrin.gif
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#15 JimFromFL

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Posted 03 March 2006 - 05:42 PM

QUOTE (21 smoker @ Mar 3 2006, 06:58 AM)
Jim,..I have invited you personally to the Hernando shoot in the past ...

You are right.... each show I have been very busy and was going to go this time but recently sprained my right ankle so it is very sore and swells when sitting only a few minutes and between driving 3 hours each way and walking all day it just would have been too much. In fact I still have to wear my air cast. Things tend to heal slower and one gets older. mad.gif

Let me know if you ever make it to the Orlando area as the range in Sanford is Class III friendly and as a member I get to come and go when ever during daylight. I tend to get there about 7 - 8am when it is nice and quiet.... but the quiet only last until the truck gets unloaded. cool.gif


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#16 CAL7

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Posted 04 March 2006 - 09:34 PM

QUOTE (JimFromFL @ Mar 3 2006, 05:42 PM)

Let me know if you ever make it to the Orlando area as the range in Sanford is Class III friendly and as a member I get to come and go when ever during daylight. I tend to get there about 7 - 8am when it is nice and quiet.... but the quiet only last until the truck gets unloaded. cool.gif

Are you talking about SCGAA ?
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#17 JimFromFL

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Posted 04 March 2006 - 10:47 PM

QUOTE (CAL7 @ Mar 4 2006, 09:34 PM)
Are you talking about SCGAA ?

Yes, a very good range (IMHO)
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