Oil in trumpet base/plenum

[Chimp871]

Happy Saturday everyone.

Took injectors off today for cleaning and I noticed the trumpet base has some wet oil areas as well as wet oil between trumpet base and inlet manifold. Not excessive but definitely there. The flame trap wire wool and hose was cleaned a year ago.

It this 'normal' for a Chimp?

[macdeb]

Normal, shows your PCV is working.

[Sardonicus]

Not just crankcase/piston blow-by/breather fumes but the intake blow back charge out of the cylinders during the camshaft duration/cycle overlap etc normal IMO

[Chimp871]

Hmm. I hadn't though of blowback only crank breathing.

Anyway appreciate the advice as always. One more trouble put to bed

[Sardonicus]

Chimp871 said:

Hmm. I hadn't though of blowback only crank breathing.

Anyway appreciate the advice as always. One more trouble put to bed

Fumes in the crankcase is all blow-by sure the crank assy whipping round is air movement but never an issue