Originally Posted by MrPulldown
The acerbis cap is vented.
its SUPPOSED to be. Unless the mold line has flash and it's blocking the vent, etc.
i actually had a plasic tee that was blocked from that once that caused my magna not to vent and leave me stranded a few blocks from home.
Just pull the cap with your ear down close and you'll hear it when you open it. Could also run it with the cap cocked slightly and you'll know pretty quickly...a bit dangerous but not if you're careful