This is what came out of 1 of 12 intake runners in the cylinder head. A butter knife with a bent tip made short work of it. Its the consistency of axle grease.
I haven't even started on the manifold yet.
The nice thing about the 606 is that it dumps its crankcase ventilation right at the point where the manifold meets the head so most of the manifold is not greasy like the 603 was. Once I scrape out the grease from the first inch or so, I can wash the soot out of the rest of it with my pressure washer.
Ever since cleaning out the intake on the OM603 this catch can (re purposed high pressure air filter) does a great job of keeping the oil out of the intake.
I'll be installing something similar on the 606.
Instead of the idiotic 12 plastic crankcase vents they installed at the factory which are mostly cracked and broke.
