This sounds like a shim issue. The vent hole is right at the edge of the sealing surface of the carrier oring. When you pull the trigger slightly, it pushes the bolt back a bit so that the vent hole is not longer exposed and the leak slows or stops. When tuning your level 10 bolt, remove all shims before attempting any adjustments. Any adjustments won't necessarily be accurate if shims are installed. After the shims are removed, you will be able to find out the proper carrier size for your oring.
Originally Posted by Enhander
When you went to a smaller carrier at the same time you removed a shim, the extra friction of the tighter oring on the bolt stem would push the carrier farther back rather than allow the bolt stem vent hole to move behind the carrier oring. This is why it still leaked when you removed the shim.
The actual bolt spring you use won't have any effect on the leaking except that a stiff bolt spring could artificially force the bolt to seat itself into a carrier oring that is too tight. This will prevent an immediate leak, but could cause random bolt stick issues where the gun won't fire after sitting for a while.
Start from scratch and remove the shims and then install the largest carrier that does not produce a leak with the oring that you are using. Make sure you use the same white carrier oring each time.
Last edited by athomas; 04-16-2012 at 02:27 PM.
Reason: After the shims are installed, you will ("installed" changed to "removed")
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