Oil At Front Valve Cover

[camlex]

Hello,

On 1MZFE engine, rear valve cover have PCV and it's going to Intake. On front valve cover

there is small tube which is going to Intake big plastic tube between throttle body and air filter.

Why i see oil at big tube and small tube juction? and what is the fuction of that small tube?

Thanks,

Edited January 20, 2006 by camlex

[Toysrme]

Eh? Rephrase the question, I don't understand it.

You're asking abot why there is oil in the intake? It's because both the PCV & front breather are baffeled from the oil that spins off the cam itnermesh gears & cams themselves, but some oil will always get around the baffling.

The oil doesn't really do anything, very little flows & it doesn't tend to build up. It just looks messy.

or are you asking why there is a front breather when it has a PCV valve on the rear head?

[SKperformance]

Both parts are to recirculate the engine air and vent it into the engine for combustion.

If you removed the pipe you would find small deposits of oil coating its insides.

[camlex]

Hello,

Good morning,

Thanks