www.dodo-upgrades.nl

PCV Valve=Positive Crankcase Ventilation Valve
Helps to keep away the moisture out of the engine oil and relieving pressure from the engine to prevent oil leaks and oil consumption.
Engine vacuum in intake manifold sucks fumes from the crankcase and burns them harmlessly in the engine
If the PCV Valve fails, severe sludge can build up and oil leaks can occur.

PCV Valve is the number 3 on the picture



Part numbers for EJ9's PCV Valves are: 17130-PR4-Y01 and 17130-PK1-003
and for the grommet (number 2 on the picture) is 11855-P72-000

PCV Valve

do we still have it with the intake manifold swap?

Yes it is still there!
When swapping Intake Manifold it is chance to change PCV Valve with new one because we have easy access to it.

and what would be the gains? Do you know the cost?

Good post, what is part 1??

Also where do you find all this info? Did you find electronic copy of service manual?

saxophonias wrote:and what would be the gains? Do you know the cost?

Is maintenance issue if it works it is good! For example oil filter doesn't give any gain but if not changed then might appear problem to the engine.
If PCV Valve not work, then slowly appearing some problems for example moisture in the oil.

BETEK wrote:PCV Valve=Positive Crankcase Ventilation Valve
Helps to keep away the moisture out of the engine oil and relieving pressure from the engine to prevent oil leaks and oil consumption.
Engine vacuum in intake manifold sucks fumes from the crankcase and burns them harmlessly in the engine
If the PCV Valve fails, severe sludge can build up and oil leaks can occur.

The cost according to the http://www.lingshondaparts.com is 45 Euro.

mynameisowen wrote:Good post, what is part 1??

The part 1 is the breather tank of the engine oil's fumes

mynameisowen wrote: Also where do you find all this info? Did you find electronic copy of service manual?

viewtopic.php?f=41&t=213

PCV Valve Videos in parts
explain what is, why it needs, how it works, what is blow by effect etc.
http://www.youtube.com/watch?v=rs6YtHUscCA
http://www.youtube.com/watch?v=VxwNFvE-Bec
http://www.youtube.com/watch?v=xI-IEwDfHL4
http://www.youtube.com/watch?v=Yc5Cb-vt3rQ
http://www.youtube.com/watch?v=E1gDXhuP8_Q
http://www.youtube.com/watch?v=3JYut_eyw-k

i have broken the inside small part to have free flow on my b the crankcase keeps breathing all time to avoid inner pressure