Went single, excessive crank case pressure
08-07-13, 06:42 PM
#1
Went single, excessive crank case pressure
Well where to start....One day my car started pouring oil smoke, I thought my twins went bad. So i purchased a gt3574r, installed it and I'm still getting smoke, no where near how bad it was smoking but still some. It smokes a lot after I boost and on decel. So for the excessive crank case pressure, after I went single, I capped off the lower nipple on the oil fill tube and left the pcv on the other nipple. My car keeps blowing the dip stick out of its hole and smoke comes out. Can this all be caused by a bad pcv? or are my oil control rings wearing out? Will a oil catch can help solve this issue? Thanks guys
08-08-13, 10:35 PM
#2
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My guess?
It's because you capped off the only way that the Oil filler tube can get air.
Where else is the pressure going to go?If you close the system off the oil will start going somewhere else.If you keep it breathable then it can do it's job.
If you T the 2 nipples(oil filler and center iron) then it may help you.
(I don't even have a PCV or anything else on my TII..yet..I just run 2 hoses,T them together and leave them to atmosphere,Above the height of the Oil filler tube,attached to the firewall..for now.
I have a catch can but haven't installed it yet.)
It's because you capped off the only way that the Oil filler tube can get air.
Where else is the pressure going to go?If you close the system off the oil will start going somewhere else.If you keep it breathable then it can do it's job.
If you T the 2 nipples(oil filler and center iron) then it may help you.
(I don't even have a PCV or anything else on my TII..yet..I just run 2 hoses,T them together and leave them to atmosphere,Above the height of the Oil filler tube,attached to the firewall..for now.
I have a catch can but haven't installed it yet.)
Last edited by misterstyx69; 08-08-13 at 10:38 PM.
08-09-13, 12:13 AM
#4
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I have a nipple on the filler neck and also one that comes off the center iron.
Basically you need to have the Oil filler neck either seeing vacuum or air.(but NOT boost in any shape or form)
Plug your nostrils..you can't breath right?..same thing happening here.
Ya,what you mentioned is fine,with the catch can thing.I am assuming that you are plugging the hose(or nipple) to/at the Throttle body.
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08-13-13, 11:56 PM
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That doesn't sound right..
I gotta bump this for ya to get some others to post up their opinion.
As I said my FC is vented to atmosphere and no lines go to the TB at all,so If your neck is smoking there has to be something up.
BUMP!
I gotta bump this for ya to get some others to post up their opinion.
As I said my FC is vented to atmosphere and no lines go to the TB at all,so If your neck is smoking there has to be something up.
BUMP!
08-15-13, 09:52 AM
#12
When I bought the motor last year, it was a pineapple rebuild with 9k on the motor and I've probably put 3k miles on it. I still have the pcv running to the uim but the other nipple is capped. I decided to drive it with the oil cap off and it smokes out the fill neck pretty bad. And still smokes a little on decel out the muffler
08-15-13, 10:19 AM
#15
you need to delete the pcv valve and cap it on the uim and do not cap anything on the oil filler neck. since you have the pcv connected and the oil filler cap is removed it is sucking air from the big openining through the pcv valve.
Last edited by evo_koa; 08-15-13 at 10:20 AM. Reason: mis spelling