This is crazy, but Oil Burn? The Story of conquering phantoms.
01-19-2019, 03:36 AM
#61
Registered User
i'm confused.
so the goal here is to seal up the leaks.
but there is a breather hose that draws in fresh air from the air filter upstream of the throttle body, that would effectively re-pressurize the crank as the pcv draws the pressure out.
can someone explain what i'm missing here?
so the goal here is to seal up the leaks.
but there is a breather hose that draws in fresh air from the air filter upstream of the throttle body, that would effectively re-pressurize the crank as the pcv draws the pressure out.
can someone explain what i'm missing here?
As far as i understand, and i am maybe wrong, the breather hose and the PCV valve are "Calibrated" in diamter to some extend, so that they work properly "Togehter".
The leak on the oil seal cap will bring this system out of balance.
https://www.aa1car.com/library/pcv.htm
https://auto.howstuffworks.com/posit...ion-system.htm
01-26-2019, 05:23 AM
#62
@Deckoz Can you advise:
1. How do you measure or check the crank case pressure? (is there a DIY to do this?)
2. Is there a way to inject smoke into our engine during idle to see where the leak is vs. the 3lb air test you mentioned?
3. What is a PCV grommet? Is that an AP1 component?
I'm chasing this same exact issue and had already replaced a slew of gaskets and bits coming to the same conclusion have, so I'm down to the final stretch to see if my oil consumption issue is resolved.
thanks
1. How do you measure or check the crank case pressure? (is there a DIY to do this?)
2. Is there a way to inject smoke into our engine during idle to see where the leak is vs. the 3lb air test you mentioned?
3. What is a PCV grommet? Is that an AP1 component?
I'm chasing this same exact issue and had already replaced a slew of gaskets and bits coming to the same conclusion have, so I'm down to the final stretch to see if my oil consumption issue is resolved.
thanks
01-26-2019, 07:51 AM
#65
Registered User
Thread Starter
01-26-2019, 08:57 AM
#66
That part I've got...what I don't know how to do is a) where do I stick the smoke into? Like what intake location (please for the love of god don't tell me to stick it in my rear end - using a Chris Farley voice) and b) do you do this while idling?
01-26-2019, 09:53 AM
#67
Registered User
Thread Starter
car off, put it in the front breather port on valve cover. if needed, block off the pcv.
01-26-2019, 04:06 PM
#68
This might also help with oil consumption issues on my wife's Subaru Outback. Some Subarus have oil consumption issues, and some don't. Thank you very much for this incredibly interesting thread!
01-27-2019, 07:47 AM
#69
Subaru recalled my daughters 2013 Outback for excessive oil consumption. Would run the oil down to the point the low oil pressure light came on, below the dipstick (she ignored my "check frequently" advice) 
. I believe they had to pull the engine to fix it. Regardless it's been fixed for a couple of years now.
-- Chuck
. I believe they had to pull the engine to fix it. Regardless it's been fixed for a couple of years now.-- Chuck
01-27-2019, 07:41 PM
#70
You also mentioned measuring the crank pressure...is this the same thing as the air/smoke test or is this something different?