DM7 leak

[Kevin Winter]

I recently bought a dye dm7 it's leaking badly from the back cap. It hasn't been shot in a while and was leaking a little when itarrived so I replaced the o rings on the boltstem with some from a kit from o ring monkey and now the heavy leaking! Any advice welcome!

 

[powie]

i would look at the lpr and primary reg.

on mine if the primary reg is set too low it leaks as not enough pressure to seal the chamber .

the lpr is easy to set . wind it all the way in the back it out 5 turns. once thats set wind the main reg all the way in , gas it up ( with gun on and eyes of , red light flashing) and wind out the main reg while firing it till you get a proper firing cycle.

if still leaking change the bolt sail o-ring