My car has no PCV valve?!?
#1
My car has no PCV valve?!?
My mechanic and I (JPR Iports in south jersey. I would recomend Jim to anybody) have been investigating the many oil leaks my car seams to have for two weeks now (three times). The oil seams to be leaking out of every seal that it can (4 or 5 very noticable places -- metering pump seal, turbo seals, IC couplers, all over the engine block, etc...). He steamed cleaned the engine and after a few days it's just as bad as ever, but we couldn't find specifically what was leaking.
So tonight we notice that the car has no PCV valve and that the nipple coming off of the oil fill stem is just capped off! This seams to be very bad to me b/c it has been like this since before I got the car which was 10k miles ago. So I've been driving it (hard) like this for a year straight as daily driver.
Could this cause any long term damage to my motor and tubos and maybe anything else? Thanks.
-Matt
So tonight we notice that the car has no PCV valve and that the nipple coming off of the oil fill stem is just capped off! This seams to be very bad to me b/c it has been like this since before I got the car which was 10k miles ago. So I've been driving it (hard) like this for a year straight as daily driver.
Could this cause any long term damage to my motor and tubos and maybe anything else? Thanks.
-Matt
#4
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
95s don't have an EGR but certainly have a PCV. However, the PCV is not plugged back into the intake tract like it is with 93-94s. Therefore, we 95s don't have quite the track leakage that 93-94s do....
#5
Originally posted by rynberg
95s don't have an EGR but certainly have a PCV. However, the PCV is not plugged back into the intake tract like it is with 93-94s. Therefore, we 95s don't have quite the track leakage that 93-94s do....
95s don't have an EGR but certainly have a PCV. However, the PCV is not plugged back into the intake tract like it is with 93-94s. Therefore, we 95s don't have quite the track leakage that 93-94s do....
#6
"I see triangles"
Join Date: Apr 2003
Location: PA
Posts: 1,119
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Zyon13B
95's do not have a PCV valve.
95's do not have a PCV valve.
NEways you could try a catch of some sort in the line returning to the intake, it should eliminate some excess oil.
Trending Topics
#8
Senior Member
Join Date: Oct 2002
Location: South Florida
Posts: 617
Likes: 0
Received 0 Likes
on
0 Posts
My car (a '93, but I assume this changed when Pettit rebuilt my motor a few years ago) doesn't have anything attached to the filler neck either. I've been told its normal, and I certainly don't have oil leaking all over the place.
jds
jds
#9
Eye In The Sky
iTrader: (2)
Join Date: Feb 2001
Location: In A Disfunctional World
Posts: 7,895
Likes: 0
Received 114 Likes
on
66 Posts
Early FDs have two ways to vent exhaust/other fumes
from the pan(crankcase) into the engine for burning.
A traditional PCV valve between the oil filler neck and UIM, and a hose going from the oil filler neck to the #1 turbo inlet.
The PCV valve is a possible source of failure. If stuck open, under boost you will pressurize the crankcase.
This has happened . Since the other hose does the same thing, many of us have removed and blocked off the PCV circuit. Same thing is done by many road racers as they must have an oil catch can.
from the pan(crankcase) into the engine for burning.
A traditional PCV valve between the oil filler neck and UIM, and a hose going from the oil filler neck to the #1 turbo inlet.
The PCV valve is a possible source of failure. If stuck open, under boost you will pressurize the crankcase.
This has happened . Since the other hose does the same thing, many of us have removed and blocked off the PCV circuit. Same thing is done by many road racers as they must have an oil catch can.
#10
-
iTrader: (3)
Join Date: Nov 2002
Location: SF Bay Area
Posts: 624
Likes: 0
Received 0 Likes
on
0 Posts
currently im running the hose to the turbo intake elbow and have the pcv blocked off. but i think i am about to reverse this. my reasoning is if im going to be sucking up oil i would rather have it go through as little of the intake as possible. the pcv goes straight to the manifold instead of going through the turbo and intercooler first. what do people think about that?
#11
Lives on the Forum
Originally posted by rockshox
currently im running the hose to the turbo intake elbow and have the pcv blocked off. but i think i am about to reverse this. my reasoning is if im going to be sucking up oil i would rather have it go through as little of the intake as possible. the pcv goes straight to the manifold instead of going through the turbo and intercooler first. what do people think about that?
currently im running the hose to the turbo intake elbow and have the pcv blocked off. but i think i am about to reverse this. my reasoning is if im going to be sucking up oil i would rather have it go through as little of the intake as possible. the pcv goes straight to the manifold instead of going through the turbo and intercooler first. what do people think about that?
#13
Lives on the Forum
Originally posted by rockshox
right but now long are you under boost continously?
right but now long are you under boost continously?
#16
Rotary Enthusiast
Join Date: Dec 2001
Location: Sunnyvale, CA
Posts: 1,252
Likes: 0
Received 0 Likes
on
0 Posts
well if you are pressurizing the crankcase, any seal that is about to go will go...
The best is to vent it into the air thru oil catch can.
I am thinking of eliminating the charcoal canister vent too..
The best is to vent it into the air thru oil catch can.
I am thinking of eliminating the charcoal canister vent too..
#17
Lives on the Forum
Originally posted by rockshox
i do a fair amount of road racing and usually i brake before every corner.
i do a fair amount of road racing and usually i brake before every corner.
#21
Originally posted by jfxp
moehler, my car is at JPR w/ jim as well (broken clutch fork) does ur car have a 99 spec front end unpainted? alittle off topic, sorry
moehler, my car is at JPR w/ jim as well (broken clutch fork) does ur car have a 99 spec front end unpainted? alittle off topic, sorry
Originally posted by R. Gambino
search robinette site under pcv valve. your answer is there with a diagram
search robinette site under pcv valve. your answer is there with a diagram
http://www.rx7turboturbo.com/robrobinette/pcv.htm
From this, it seams that the 95's should have a tube coming off of the filler neck and going to the turbo inlet path. Am I reading this correct?
My car just has the nipple on the filler neck capped off?!? So I should still look at this as source of concern, right??
#22
Rotary Enthusiast
bad idea
Originally posted by rockshox
currently im running the hose to the turbo intake elbow and have the pcv blocked off. but i think i am about to reverse this. my reasoning is if im going to be sucking up oil i would rather have it go through as little of the intake as possible. the pcv goes straight to the manifold instead of going through the turbo and intercooler first. what do people think about that?
currently im running the hose to the turbo intake elbow and have the pcv blocked off. but i think i am about to reverse this. my reasoning is if im going to be sucking up oil i would rather have it go through as little of the intake as possible. the pcv goes straight to the manifold instead of going through the turbo and intercooler first. what do people think about that?
ok to lose the pcv, but the vent tube from filler neck to tubo inlet should always be used. for track use, i use an ast-like closed catch can, and drain it ocassionally.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM