sounds like you have metal to metal contact going in inside the engine itself , how long since your last oring, grease and rebuild of your engine?
i would take apart the engine and look for metal to metal contact, ie spring and blast guide, and ram and back cap,
while i was at it i would replace all orings and relube and rebuild engine then go from there, check that rear back cap screws are tight.
Give it all you got or go home early
Old Feedback 95 reasons to trust me
"Originally posted by firefoxx04
: Everything works awesome and just as described, thanks.
This guy is straight business no bull ****."
Closer For Sale