My M3 leaks out the barrel from about 230 down to 200 or so. It shoots well and at a certain point it will usually stop by itself. More recently this past Saturday while shooting a 100 yd match, it would make a light pop sound,like a little burp and be leaking out the barrel. Accuracy doesn't seem to suffer as I had two groups of 5 shots in the ten ring and nothing worse than 8, even missed one shot and scored 447\500.
Now, if I close the valve adjustment to zero, the leak will stop. Sometimes this tops it even after I open the valve to almost 4 open, other times, it just starts leaking again. I have replaced all the O rings and the valve rod and seat as well with no improvment. I did recently add oil thru filling air plus a couple small drops into the breach. I even removed second reg gauge and put in a couple small drops of oil just to see if it would solve the problem. I can't say for sure this helped or not. If it did, it was short lived. Any ideas?
Now, if I close the valve adjustment to zero, the leak will stop. Sometimes this tops it even after I open the valve to almost 4 open, other times, it just starts leaking again. I have replaced all the O rings and the valve rod and seat as well with no improvment. I did recently add oil thru filling air plus a couple small drops into the breach. I even removed second reg gauge and put in a couple small drops of oil just to see if it would solve the problem. I can't say for sure this helped or not. If it did, it was short lived. Any ideas?