• Welcome to Crosman Air Pistol Owners Forum.

NOOB Question...1377 Trigger Job

Started by Mischief, January 03, 2016, 05:39:47 AM

0 Members and 1 Guest are viewing this topic.

Mischief

Just got a Crosman 1377 and shot it tonight. Out of the box I used the "iron" sights and crosman wad cutters. It shot awesome. Same hole groups at 10yds off of a bag. THen I tried the point Crosman's. It HATED them! I had to pump it 4 times in order for the gun to even shoot...same weight pellet though! Must be a touch larger diameter. I think shooting these tighter pellets may have leaded the barrel a bit as I went back to the wad cutters and it was all over the place!! AHHH! Just ordered a cleaning kit.

So here we go. The trigger is stiff and I want to teach my daughter to shoot pistols with this. I don't want a hair trigger but lighter and definitely smoother would be great. Also, my hand rubs on the bottom of the rear of the frame...the fat between index finger and thumb. Wold I need different grips to alleviate that problem? Last....sometimes I pump it 2-3 times and I can just tell that it's not building pressure, then, when I shoot it, it pukes rather than shoots. What is up with that?
----------------------------
Regards,
---Frank---
Crosman 1377
AF .25 TT AAA Condor (Blue)
AF .22 Talon
A Few Springers
MANY Powder Burners!

rangerfredbob

The easiest trigger job is to take one of the grips off, pull out the spring you see and squish it with pliers until it takes about 1/8" of preload to put it back in, if you have one many people put a spent .22LR casing in the spring on the upper end
Near McMinnville, Oregon

Have me many an airgun :), count is 102 now...

Tater

Have you lubed it yet? Maybe a drop of Pelgunoil, Mac1 secret sauce, or something similar on the piston might help the early low pressure.
Compressing the spring like RFB mentioned is probably the easiest way to make the trigger more bearable.
Jerry

NW Chicago suburbs

JMJinNC

#3
Agree with some oil on the piston cup. Also, if you consider yourself handy, you could polish the trigger components. I use a dollar-store 7-grit nail board. Goes from course to buff/polish. Start at #3 medium and go to #7 buff on all mating surfaced. It's foam backed so you less likely to take off too much material.

It looks like this:
http://m.miniinthebox.com/en/2pcs-multi-function-7-side-sponge-nail-files_p541021.html?currency=USD&litb_from=&adword_mt=&adword_ct=73303158282&adword_kw=&adword_pos=1o5&adword_pl=&adword_net=g&adword_tar=&adw_src_id=4196617767_313287282_22460119242_pla-115387201218&gclid=CIWd-fLMjcoCFYIaHwodU7UCnA

JMJ
John

oldgearhead

#4
My cleaning kit:
__A box of q-tips
__A 14 inch x 1/8 inch: wood dowel
__A bottle of GooGone
__A tube of Pelgun oil.

Cut the q-tips in half and push them through the bore. Start with the GooGone, then a dry one, and finish with Pelgun oil.
Avoid contact with the barrel crown as much as possible.
J-B or GooGone?
Tissue test and Q-tips
JSB Exact or LUM-77?
Longer barrel?

TennX

Im glad you were able to hit with the open sights...I couldn't hit squat with all 5 of mine...put optics on them...I did light sanding and lube on surfaces and used a trigger kit from AC Customs....made all the difference....good luck

KevinP

Quote from: oldgearhead on January 03, 2016, 01:18:23 PM
My cleaning kit:
__A box of q-tips
__A 14 inch x 1/8 inch: wood dowel
__A bottle of GooGone
__A tube of Pelgun oil.

Cut the q-tips in half and push them through the bore. Start with the GooGone, then a dry one, and finish with Pelgun oil.
Avoid contact with the barrel crown as much as possible.

Or ....  cut the q-tips , dip them in googone and shoot them out. keep shooting dry ones till they come out clean ...
Kevin
Albany, New York

Mischief

Quote from: rangerfredbob on January 03, 2016, 07:32:55 AM
The easiest trigger job is to take one of the grips off, pull out the spring you see and squish it with pliers until it takes about 1/8" of preload to put it back in, if you have one many people put a spent .22LR casing in the spring on the upper end
Just compress the spring a little huh? I have thousands of 22LR brass as I use them as bullet jackets to make 22 cal bullets. I'll try finding a youtube vid on that. Thanks!!
----------------------------
Regards,
---Frank---
Crosman 1377
AF .25 TT AAA Condor (Blue)
AF .22 Talon
A Few Springers
MANY Powder Burners!

Mischief

Quote from: Tater on January 03, 2016, 09:17:27 AM
Have you lubed it yet? Maybe a drop of Pelgunoil, Mac1 secret sauce, or something similar on the piston might help the early low pressure.
Compressing the spring like RFB mentioned is probably the easiest way to make the trigger more bearable.
I have not. This is my first 13xx and didn't want to "break into it" on the first night. Also, the gun itself seems to be quite greasy so I figured all was lubed pretty good.
----------------------------
Regards,
---Frank---
Crosman 1377
AF .25 TT AAA Condor (Blue)
AF .22 Talon
A Few Springers
MANY Powder Burners!

Mischief

Quote from: JMJinNC on January 03, 2016, 01:03:33 PM
Agree with some oil on the piston cup. Also, if you consider yourself handy, you could polish the trigger components. I use a dollar-store 7-grit nail board. Goes from course to buff/polish. Start at #3 medium and go to #7 buff on all mating surfaced. It's foam backed so you less likely to take off too much material.

It looks like this:
http://m.miniinthebox.com/en/2pcs-multi-function-7-side-sponge-nail-files_p541021.html?currency=USD&litb_from=&adword_mt=&adword_ct=73303158282&adword_kw=&adword_pos=1o5&adword_pl=&adword_net=g&adword_tar=&adw_src_id=4196617767_313287282_22460119242_pla-115387201218&gclid=CIWd-fLMjcoCFYIaHwodU7UCnA

JMJ
A little handy, yes...but not when it's something I know nothing about. Again, I'll try to find a video showing this and get 'er done. Thanks
----------------------------
Regards,
---Frank---
Crosman 1377
AF .25 TT AAA Condor (Blue)
AF .22 Talon
A Few Springers
MANY Powder Burners!

BillK

Google "Crosman 1377 trigger  you tube".  You will find a lot of info.
Most important part of the mod is the "bump test".  Once adjusted, cock the gun and slam the gun into your hand or a hard surface to be sure it wont fire if dropped or bumped.
West Michigan
Crosman Nitro Venom .22
Crosman 760 - 782 - 1077
Sheridan S S - H - E9
Benjamin NP pistol - Disco - Prod
MIC B1 .177
2300S - 2300T - 2400kt
1740 - 2240 - 2250 - 1760 - 2260 - 1701P
1322 - 1377
MK I & II

rangerfredbob

Quote from: Mischief on January 03, 2016, 03:04:05 PM
Just compress the spring a little huh? I have thousands of 22LR brass as I use them as bullet jackets to make 22 cal bullets. I'll try finding a youtube vid on that. Thanks!!

Just take off one grip, doesn't matter which one... I would have elaborated last night but I was on my phone... Yep, the .22 casing fits in the spring and acts as a guide. A lot of people cut the stock spring, but I would much rather shorten it personally, bending it isn't compromising the spring, it doesn't really do a complex job.

I once did this mod while out wheeling and just compressed the spring in my fingers...
Near McMinnville, Oregon

Have me many an airgun :), count is 102 now...

Mischief

All Set! I found that, to get it at it's minimum length of pressure but at the maximum length in order for the trigger and sear to catch, I intentionally compressed it too far, then cocked it to see if it would catch (which it would not), then I ever so slightly pulled to decompress the spring, then tried it again, repeat until it is at it's shortest length but will still put enough pressure on the catch for the gun to cock.

OK....what's next??? lol    8)
----------------------------
Regards,
---Frank---
Crosman 1377
AF .25 TT AAA Condor (Blue)
AF .22 Talon
A Few Springers
MANY Powder Burners!

T191032

I have done the -

Compression (of stock) spring.

Use a screwdriver and a flat washer to compress the spring down.  Last time I did this, it did not seem to want to catch, and I had to pull the spring back out a bit.


Bought an after market spring / guide (AC Customs).

Some years back, when the getting was good, I picked up couple of a spring/guide from ACCustoms.  The .22LR guide trick has never seemed to work for me.


Aftermarket

Go to your local "Ace" (and don't forget your stock spring).  Pick out the correct, lighter spring.  If I could find it, I'd post the information I had written down, but am starting to wonder if the cat got to it.  He likes to "play" with all kinda things and will knock papers out of place.  They cost $0.40-$0.45 or thereabouts, the last ones I bought.


"OK....what's next??? lol"


Guess you got to decid if your going to go from Stock (which you did), on past Semi-Stock (IMHO once you fiddled with it) onto Semi-Custom or a Full Customized Stage!

Hmmm, New grips, steel breech, Red Dot Sight, new bolt handle  ;)  :D   All kinda depends on your budget!

It ain't like it used to be but, eh, it's do.

Mischief

I think I'm going to keep it a target pistol... But I have a question... What is the most power any of you have seen come from one of these 1377's?
----------------------------
Regards,
---Frank---
Crosman 1377
AF .25 TT AAA Condor (Blue)
AF .22 Talon
A Few Springers
MANY Powder Burners!