From what i've been able to determine it's coming from the intake side cam 
Anyone heard this before, know whats causing it?
Is it some sort of trapped air it's sucking through a cam journal???
I actually had this on the last engine also, i had assumed it was something to do with my crankwalk but now it's back... I think i have used the same cams, so i'm unsure as to what it is.
Also this only happens on cranking/stopping the engine, as soon as it's running you can't hear it. So either its still there but you can't hear it or it does actually stop.
Thanks for any help
http://youtube.com/watch?v=N7zGDnxjDQA
Anyone heard this before, know whats causing it?
Is it some sort of trapped air it's sucking through a cam journal???
I actually had this on the last engine also, i had assumed it was something to do with my crankwalk but now it's back... I think i have used the same cams, so i'm unsure as to what it is.
Also this only happens on cranking/stopping the engine, as soon as it's running you can't hear it. So either its still there but you can't hear it or it does actually stop.
Thanks for any help
http://youtube.com/watch?v=N7zGDnxjDQA