PCV question?
Thread Starter
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
PCV question?
I just need someone to give me a sanity check on the routing of the PCV vacuum lines..
Ok. There are 2 fittings on the T/B The top one is the clean air intake for the whole thing to breathe? The bottom one is where all the crankcase fumes get sucked into the intake?
So It starts at the top and goes into the passenger side valve cover then out of that valve cover into the driver side valve cover and then backout of there to the bottom inlet of the TB
Ok. There are 2 fittings on the T/B The top one is the clean air intake for the whole thing to breathe? The bottom one is where all the crankcase fumes get sucked into the intake?
So It starts at the top and goes into the passenger side valve cover then out of that valve cover into the driver side valve cover and then backout of there to the bottom inlet of the TB
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Re: PCV question? (chuckster)
Not exactly right,
I would describe it this way. It starts on the driver side valve cover goes to the passenger valve cover and then through the PCV valve before hooking into (a vacuum source) the intake manifold. There is then another tube coming out of the passenger valve cover and into (a fresh air source) the throttle body .
Here is a diagram that I have in another post in the FI section.
http://home.austin.rr.com/quicksilver2002/pcv.jpg
You want to put your filter between the back nub on the passenger valve cover and the PCV valve.
[Modified by QuickSilver2002, 4:08 AM 10/3/2002]
I would describe it this way. It starts on the driver side valve cover goes to the passenger valve cover and then through the PCV valve before hooking into (a vacuum source) the intake manifold. There is then another tube coming out of the passenger valve cover and into (a fresh air source) the throttle body .
Here is a diagram that I have in another post in the FI section.
http://home.austin.rr.com/quicksilver2002/pcv.jpg
You want to put your filter between the back nub on the passenger valve cover and the PCV valve.
[Modified by QuickSilver2002, 4:08 AM 10/3/2002]
Thread Starter
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Re: PCV question? (QuickSilver2002)
Sweet Picture!
I see now...The fresh air intake just goes to the front side of the passenger valve cover..
I was just really trying to identify the top T/B inlet tube.. "Fresh air"
Thanks
I see now...The fresh air intake just goes to the front side of the passenger valve cover..
I was just really trying to identify the top T/B inlet tube.. "Fresh air"
Thanks
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Re: PCV question? (chuckster)
I'm honestly not sure if "fresh air source" is totally the correct way to label it, but it was the only way I knew to describe it. I'm actually guessing here, but I think it goes into the TB and can only pull air in front of the throttle plate where there would only be a vacuum when under heavy load. The theory being you get more positive ventilation as load increases. FI applications make this location useless since you end up with boost in that area.
Le Mans Master
Joined: Apr 2000
Posts: 7,248
Likes: 0
Re: PCV question? (QuickSilver2002)
Ya, the fresh air source is the metal tube coming off the Throttle Body. No need to mess with that unless you are running Forced Induction, then it gets capped and re-routed somewhere else.
