A question for advanced air-gunsmiths

[Ascot500]

I want to reseal my GAMAO PR-45 (same powerplant as the Compact) and I cannot separate the air cylinder and valve assembly.
The pin is out and the valve will rotate - but it feels like there is some kind of retainer that I cannot find.
What am I missing?

[rsterne]

I know nothing about that gun.... You may get more responses in the PCP Gate.... I can move the thread there if you wish....

Bob

[Ascot500]

Yes, please move it

Thanks

[Ascot500]

Bump

[Motorhead]

just a WAG .... not familiar with this gun, tho does look like a compression tube attached to a valve body on an SSP ( Somewhat similar to a Beeman p-17 )

The P17 is assembled similar tho no cross pin, but they have a slight roll crimp on the end of tube where it butts against the plastic housing. In this way the tube CAN NOT be pulled off because this roll crimp has metal on the end rolled inward into a groove locking it into place.

PERHAPS something similar is in play here

[kbstingwing]

Exploded view.... looks like you might need to remove the other end and try lightly tapping the valve end out with a wood dowel after removing the piston

[mikeyb]

Looks like just a tight o-ring fit. Pull just a little harder with a slight rocking motion. If just a tight o-ring fit it will start to move and then slip apart. Don't get out the stump puller yet just in case there is something physically holding the part in place.