FX Tarantula/RWS Excalibure full inlet leak

[smcowboy]

My Excalibure has a slow leak on the fill port.
Should I replace the inlet valve oring itself, or the inlet valve spring as well?
Anyone know the inlet valve oring size?

 

[nervoustrig]

No need to replace the spring unless it somehow got damaged, which would be unusual. Besides, most if not all fill ports function fine without a spring...the pressure differential closes it. I usually remove the spring because it prevents a convenient way of degassing.

Regarding the O-ring, FX typically lists the size, material, and durometer on their schematics. One example

https://fxairguns.com/wp-content/uploads/2019/06/fx2000-190627.pdf

 

[smcowboy]

Thank you nervoustrig. The spring thing makes sense. Will the end cap oring be alright to reuse?
Concerning the oring, I thought maybe I had one of a close enough size to use at home here. Like a 006 or 007 maybe. I do have the link to TW Chambers to get spare parts/orings. The schematic helps out a lot too.