Airgunsmith Airgun Forums

 

  

 

 

  Airgun Performance Data Base Click here to listen to live radio Click here to vote


1808 Postings in 503 Threads, 807 Members, 1 users online ( 0 Members, 1 Guests )


     | | Go Back |   

  |  Login | Create Account 
 | 
Chat!  |  Search

 


 

JBLodi

Nov/12/2017 at 02:50PM
 

Crosman 1377

For whatever reason, my 1377 stopped shooting. It pumps up fine with no apparent leak down but doesn't have enough power to propel the pellet through the barrel. Is there an exhaust port that might be plugged? If so, how do I clean/replace it?

airgunsmith

Homepage

USA,
Nov/12/2017 at 10:52PM

@ JBLodi
 

1377 issues

If there is no leaking I would think your piston cup is worn out or your inlet hole or seal could be plugged, another possible is the inlet seal
could have dirt on it keeping it from sealing letting the pressure leak as
you open the pump arm, what you pump in is let back out.

I would disassemble clean and reassemble. if the fix is not in the clean-up
a rebuild would be the answer.

       |    |     

1808 Postings in 503 Threads, 807 Members, 1 users online ( 0 Members, 1 Guests )