Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,846
Steve- 360 bypass valves are fail open, which means with no vacuum, they will eventually open when the engine is shut off. Residual vacuum may keep them closed for a while. On a 360 to keep them open all the time, the vacuum hose ends to the pneumatic valves are removed and the hose ends plugged.
Maranellos are the opposite.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.