Extremely interesting find.. rubber dust inside intake manifold
normal operation. normal oil deposit's from EGR and PCV
p.s. valve cover screws are 8 ft/lbs. You'll strip them if you tighten too much
p.s. valve cover screws are 8 ft/lbs. You'll strip them if you tighten too much
Last edited by projektvertx; Dec 7, 2016 at 11:08 AM. Reason: Combined two useful posts





