Quote Originally Posted by nubcake View Post
That's your cam chain tensioners (de-)activating.
It's actually the chain rattling.
Thanks nubcake...that's what I thought...hopefully new chains and tensioner shoes will help at least a little bit by taking up a slight bit more slack...

Still hoping that I can diagnose the hydraulic follower racket as well, I'm pulling the cams as soon as I have a couple of hours, hopefully this weekend.