7875 + 5.9 + E85 + Megasquirt
Starting a couple years back I had noticed that after a boosted run I would sometimes get a strange fluttering sound like a piece of paper was sucked into the torque converter. I never figured it out until recently. Crankcase pressure was popping the dipstick out of the tube and the sound was the dipstick vibrating in the tube. I’ve always had rear seal leaks and recently saw a little oil coming from the front seal. It’s gotta be too much crankcase pressure me thinks. So I took advantage of the 2nd bung I had welded into the oil pan and ran a catch can to it. Fingers crossed this helps.
Starting a couple years back I had noticed that after a boosted run I would sometimes get a strange fluttering sound like a piece of paper was sucked into the torque converter. I never figured it out until recently. Crankcase pressure was popping the dipstick out of the tube and the sound was the dipstick vibrating in the tube. I’ve always had rear seal leaks and recently saw a little oil coming from the front seal. It’s gotta be too much crankcase pressure me thinks. So I took advantage of the 2nd bung I had welded into the oil pan and ran a catch can to it. Fingers crossed this helps.