I had the same problem with my BOV (I have a Blitz SS) and i removed it and physically moved the piston with my hands to check for freedom of movement (i thought it was fubar). It moved freely, but since it was late i neglected to realise that the adjustment nut on top of the BOV was completely missing
I found a replacement nut, and fiddled with its positioning a bit till it sounded the same again.
One thing to note, while adjusting i looked into the trumpet at the side of the piston to watch its movement, and i noticed at some adjustment settings the BOV was partially open at idle which would let air into the system past the AFM...make sure you find a setting that releases pressure when needed but keeps fully closed when manifold is under vacuum.
Fri, 26 November 2004 07:38
