Crosman Air Pistol Owners Forum

Crosman air pistol - General => Crosman air pistol - General discussion => Topic started by: 0351_Vet on October 14, 2012, 02:20:23 AM

Title: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: 0351_Vet on October 14, 2012, 02:20:23 AM
I want to re-do my 1389 (.177), make it a .22 and mod it slightly. Give me some ideas.
I am thinking, polished frame, Grey painted (or polished) swing gate side loading breech.
some type of shroud.  :-*  :)

Not what can I do to improve the performance and reliability?  ???

Thanks. Pics welcome. Let see em. Go BackPacker's  :-*

Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: 1377x on October 14, 2012, 06:46:51 AM
making it a .22 should be easy
all you would need is a .22 insert and a.22 barrel with no transfer port and i am at a loss for words today
look at the rear of the barrel you will see it has a slightly concaved leade.
the good thing about switching out the barrel is no more hole drilled all the way through the barrel to the rifling.
if you dont have the .22 insert and someone is charging more than $6 plus shipping let me know there was some .22 inserts still left not the summer of '12 but the summer of '11 $6 at the most shipped tyd.no more loading gates though the last of them was sold a couple weeks ago
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: Crosshairs on October 14, 2012, 01:53:02 PM
Here is my .177 1389 she is in great shape and still shoots pretty good.It did come with green pistol grips.
                                        Mike
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: 0351_Vet on October 14, 2012, 02:34:52 PM
Thanks ED and Mike. Mine is also in great shape. It has the original dark green furniture too.
I am going to use a 1389 stock and forward grip black bed-liner painted for the furniture and
want to go with a smoothed & polished grip frame. I haven't decided on the top end, but
I am thinking a platinum powder-coat maybe.

Give me your thoughts. Keep them pictures coming.

@ED So the T/P is not through the barrel? I didn't know that as I have yet to break the rifle down.
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: Crosshairs on October 14, 2012, 03:53:50 PM
How about making your 1389 Marine colors.
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: cmj21973 on October 14, 2012, 04:08:18 PM
Might need these, if you don't already have them.
http://www.crosman.com/pdf/manuals/crosman/1389/C1389-EVP.pdf (http://www.crosman.com/pdf/manuals/crosman/1389/C1389-EVP.pdf)

http://www.crosman.com/pdf/manuals/crosman/2289/C2289-EVP.pdf (http://www.crosman.com/pdf/manuals/crosman/2289/C2289-EVP.pdf)
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: 1377x on October 14, 2012, 04:09:09 PM
Quote from: 0351_Vet on October 14, 2012, 02:34:52 PM
Thanks ED and Mike. Mine is also in great shape. It has the original dark green furniture too.
I am going to use a 1389 stock and forward grip black bed-liner painted for the furniture and
want to go with a smoothed & polished grip frame. I haven't decided on the top end, but
I am thinking a platinum powder-coat maybe.

Give me your thoughts. Keep them pictures coming.

@ED So the T/P is not through the barrel? I didn't know that as I have yet to break the rifle down.
yep look at the where you load the pellet in.it probably wouldnt work if the transfer port was in the barrel,since the pellet it powered befor it ever touches the barrel
you have to be careful with that transfer port its different from the ones you see now.its like using just the bottom and cutting off the top big part
the breech act as a long transfer port pushing air in through the back of the pellet though the loading gate out the barrel
i couldnt get mine to go over 470fps i flat topped it it was pushing 600fps after that
everything was tried from a new valve,new rear hammer assembly.and that barrel is an accuracy killer remove the front,you can see the barrel has been drilled through the rifling on top and bottom of the hole are touching the rifling at a critical point of the pellets travel.the only part of rifling that matters is the last inch or so thats why the fx barrels are only rifled at the end of the barrel
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: 0351_Vet on October 15, 2012, 02:08:50 AM
Here's a few pics of the NOW look......Trying to get more ideas.  :-*

(http://i1141.photobucket.com/albums/n589/USMC7579/DSC00082.jpg)

(http://i1141.photobucket.com/albums/n589/USMC7579/DSC00084.jpg)

(http://i1141.photobucket.com/albums/n589/USMC7579/DSC00088.jpg)

Also, has anyone else noticed that because of the high top radius of the breech it is hard to fix scope rings?
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: 1377x on October 15, 2012, 02:47:44 AM
looks like you would need extra high scope rings so the loading gate will open.
if it was mine i would put a current steel breech,current barrel and 2289 barrel band on it only if you plan on shooting it alot
it will probably be a long time before they gain any value
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: TLEVTA on November 25, 2014, 05:48:48 AM
Found this thread after I bought this beater at a swap meet for $10

(http://i1019.photobucket.com/albums/af318/tlevta/Backpacker_zpscf6c39ad.jpg) (http://s1019.photobucket.com/user/tlevta/media/Backpacker_zpscf6c39ad.jpg.html)

Pay NO attention to the reversed rear sight and through bolt that I took off the stock. :o

Air tube seems to hold air OK when I pump it, but the loading gate is gonzo.

I haven't torn it apart yet. Waiting for the time I'm ready to spend money before I do that. I have printed that 1389 parts diagram--thanks for posting that link. Since I've already got a load of .177 ammo, I've got the idea to keep the original barrel and modify it (as in drilling a hole for TP) to work on a new breech--possibly an aluminum one to save weight.

I'm more concerned about building an accurate gun more than future value.

I like the plunger for the hammer but since I like the idea of a P-rod trigger frame, I don't have to keep it on the gun. I modded a PC77 2 years ago, so I've kinda know my way around these pumpers. What do you guys think?
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: BigErn on November 26, 2014, 02:53:33 AM
Good deal for 10 bucks, looks like a good project.
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: BDS on November 26, 2014, 04:17:37 PM
That Pic is a "classic", you have to post a before/after on this gun when you are done!  Check out that rear sight  :D ;D

Where was that gun for the past 20 years, on a sardine trawler out at sea?  :D ;D
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: TLEVTA on November 26, 2014, 10:53:07 PM
Didn't ask the seller the history of the gun--don't think I want to know, either. Probably sat in a garage for years. The breech is going to wind up in the trash for sure. It's bowed upwards a bit right at the loading port.
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: BillK on November 27, 2014, 03:26:33 AM
Fir $10 you got a real good deal.  Stock, pump arm & trigger frame look unharmed.  Very good parts to start a fun build. :-*
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: Gippeto on November 27, 2014, 05:19:29 AM
Have a 2289.....

(http://i245.photobucket.com/albums/gg76/gippeto_album/Check%20valve/Stirrup%20pump/Airguns/2289/IMG_2954.jpg) (http://s245.photobucket.com/user/gippeto_album/media/Check%20valve/Stirrup%20pump/Airguns/2289/IMG_2954.jpg.html)


Al

Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: BillK on November 27, 2014, 05:58:47 AM
Me too.

(http://i129.photobucket.com/albums/p212/wwk1a/DBO%201322/9a0fa64d-26db-4a24-8902-607816511baa.jpg)
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: TLEVTA on November 27, 2014, 06:28:30 AM
Nice job, Guys.

I've cleaned the stock with soap and water, but I want to bring back the original finish. I'm thinking MEK--(yeah, I have a respirator) but I don't know if that'll be too harsh.
Title: Re: Let's see those 1389's BackPacker's (Old) - I have a Project in Mind
Post by: Tater on November 27, 2014, 07:40:12 AM
Quote from: BDS on November 26, 2014, 04:17:37 PM
That Pic is a "classic", you have to post a before/after on this gun when you are done!  Check out that rear sight  :D ;D

Where was that gun for the past 20 years, on a sardine trawler out at sea?  :D ;D

;D  LOL