piston leaks

[pat123]

my piston is leaking on the back where the schrader and the ball valve is connected. I used epoxy and silicone sealant around them i also think it is leaking through the threads on the endcap but i think teflon tape will fix that. have any ideas on how to fix the leak around the schrader and ball valve?

THanks
pat

[singularity]

more/better epoxy, don't use the 5 minute crap get some 60 minute marine epoxy (if your not using something close to it already)

[noname]

Globe silicone sealant around the INSIDE of the gun where you think air is leaking out. Then pressurize the gun to 10 psi or so, for around 5 seconds. Hopefully, the pressure will force the silicone through the tiny gap and seal it.

[pat123]

ok thanks i will try nonames idea first just because i already have the silicone sealant. if that doesn't work ill get better epoxy.

[gwoloshyn]

Yup, sealing from the outside doesn't do much good. Applying epoxy to the inside has always worked well for me