Air Gun Home :: View topic - oops the detonation scared the hell outta me!!!

smashingembryos · Member

phantom with new piston

ok i get the detonation and i know why, ill be tearing it apart to clean it up right away but the part im not sure about is the cocking.... damn near have to fold it in half for it to lock and i wasn expecting that much travel (i knew there would be more)

is that normal, how much more barrel travel did other people get after playing with their piston?

sniper · Silver Status Member

smashingembryos · Member

sniper · Silver Status Member

the b.s. topic. Laughing

slavia will be 'round soon. Cool

fritz · Silver Status Member

If the grab point on the piston is further ahead (when at rest), then yes the stroke of the barrel would be longer to get the sear to catch.

It is a "break-barrel"... ya know..

kanyon · Silver Status Member

Slavia · Moderator

AirGunEric · Site Admin

If this is the usual "re-tune" of a detuned Phantom, then the picture of the G1 would also be accurate for the Phantom as well. Changing piston length adds or removes significant piston stroke distance- roughly 40% when going from a typical '500' piston to a '1000' piston- so that's 40% more barrel movement/angle until sear lock. The issue here is likely that the wimpy detuned barrel angle is so shallow- anything longer seems an extreme change.

Put a couple drops of Silicone chamber oil in the transfer port and another in the barrel and your detonation will stop- it will dilute any remaining petroleum lube (assuming you didn't add more when tuning it) and stop the detonation.

smashingembryos · Member

ok thanks alot everyone i really do appreciate the help, between the pic and descriptions im off to the races Smile

but as much as i like sheer power i am going to get another 500 piston (or 2) so i can have an original and one to play with so i can find a nice balance.

for all the good and bad i hear and see about the phantom i do like the way it is open to customization