AO Gold Member
Join Date: May 2008
Location: United Kingdom
County: Perth and Kinross
For the oil to get to the inlet valves, it must be getting there from:
variator feed (would usually only be apparent on #1 or #2 though)
residual oil in the VIM (unlikely if it's using oil still)
(potentially, but unlikely) piston rings
If you run with the breathers disconnected (but plugged on the intake side), is there a difference?
What CF number is the engine?
Can you tell how far back oil deposits are being left? ie Manifold, runners, VIM, throttle body, air intake?