2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

identifying vacuum lines

Thread Tools
 
Search this Thread
 
Old Mar 5, 2007 | 09:33 PM
  #1  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
identifying vacuum lines

need help putting back vacuum lines on the motor. heres a picture of the lines i need help on. i already checked the fsm, it didn't help me much because it was an online fsm.
Reply
Old Mar 6, 2007 | 12:02 AM
  #2  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
no body knows? come on someone has to know.
Reply
Old Mar 6, 2007 | 02:33 AM
  #3  
RiCKoLA's Avatar
Full Member
Tenured Member 05 Years
iTrader: (3)
 
Joined: Oct 2005
Posts: 104
Likes: 1
From: San Diego, California
the online fsm is a scanned copy of the actual mazda fsm...so if the vacuum line info is not in there then the lines didn't come from the factory like that.
Reply
Old Mar 6, 2007 | 09:14 AM
  #4  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
no i mean its in there but i just can't see it very clearly because it was scanned from the book, and isn't very clear
Reply
Old Mar 7, 2007 | 08:03 AM
  #5  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Your right. You cannot from the FSM or any other book determine what each of those lines go to.

Swell picture though.

Tell me this. is that line closest to the turbo gasket going to the Twin Scroll Actuator on the turbo?????
Attached Thumbnails identifying vacuum lines-egr.jpg  

Last edited by HAILERS; Mar 7, 2007 at 08:31 AM.
Reply
Old Mar 7, 2007 | 08:38 AM
  #6  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
,,


Numer two jpg......seems you have the hose off the pipe for the Relief line. Put it back on.
Attached Thumbnails identifying vacuum lines-swtichingsolenoid.jpg   identifying vacuum lines-reliefsolenoidbottom.jpg   identifying vacuum lines-reliefagain.jpg   identifying vacuum lines-fprsolenoid.jpg  

Last edited by HAILERS; Mar 7, 2007 at 08:59 AM.
Reply
Old Mar 7, 2007 | 09:01 AM
  #7  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
,
Attached Thumbnails identifying vacuum lines-twinscroll.jpg  
Reply
Old Mar 7, 2007 | 03:13 PM
  #8  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
so this line connects to the FPR which is on the fuel rail? and what about the first line?
Reply
Old Mar 7, 2007 | 03:37 PM
  #9  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Yep. Last time I looked the FPR was on the aft end of the secondary fuel rail.

Uh, what FIRST LINE?????

One of the three hose with the white marks on it, I assumed is off it's nipple. I mentioned this in one of the above posts. The line that looks cleaned and darker is the one I mention,. I assume it is just laying there and not connected to anything. It should go to the bare nipple just this side of the camera.

The FPR solenoid is the orange one. Just blow thru the line I called the FPR line and the air should exit one of the hose connected to the FPR solenoid.

That's how you find out what goes where. Just find where it came from and the rest comes readily.

First line?????

In fact I'd double check what I said above. I'm more or less a disinterested party. Ain't my car.
Reply
Old Mar 7, 2007 | 03:54 PM
  #10  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Is that a line just behind and to the right of the one I called FPR???????? That must be what your talking about. Oh well. I'll look again in the moring if that is the case.

Like I said, all it takes to figure out what each of those lines does, is simply blow into the metal line. In most all cases the air you blow will exit at one of the solenoids on the left side of the engine. If you know where it came from, logic will lead you to the other end.

I'll look again tomorrow if required.
Reply
Old Mar 7, 2007 | 07:58 PM
  #11  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
so basically they go like this?
Reply
Old Mar 7, 2007 | 08:45 PM
  #12  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
No.

You need some more vacuum lines and....................wait til the morning and maybe I can make it more cleara. Maybe.

Tell me this. Those vacuum lines that are headed toward the top of the picture. Are they connected to anything??? They should be connected to another array of pipes that lead to the ACV on the right side of the engine.

And answer me this. The vacuum line that is darker in color. Is it connected to anything???? At it's bottom??? It seems to be just laying there not connected to anything.
Reply
Old Mar 8, 2007 | 09:04 AM
  #13  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
There should be another set of HARD LINES as pictured in the attached jpg. Does your engine have these????

SOME of the lines in YOUR picture attach to the HARD LINES in my jpg.

I can't tell from your picute is these lines are there or not on your engine.

Do you need a jpg of the ACV????? So you know where three of the lines in YOUR picture go?
Attached Thumbnails identifying vacuum lines-piping.jpg  
Reply
Old Mar 8, 2007 | 04:29 PM
  #14  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
yes, thank you! i've got it all sort out now. But it doesn't end there, i just found another line thats near the primary injectors and i don't have a clue where it connects to and this one too the on the black thingy
http://photos.hi5.com/0000/904/470/N8OG28904470-02.jpg
http://photos.hi5.com/0001/820/697/LGSHVW820697-02.jpg
Reply
Old Mar 8, 2007 | 06:31 PM
  #15  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
The black thing they call a Spider. Four nipples should have lines going to the top of the oil injectors.

The single large nipple on it goes to the back of the throttle body. There should be FOUR and mabe just THREE nipples back there, one above the other. The largest of those goes to the black spider. Vacuum Spider.
Reply
Old Mar 8, 2007 | 06:34 PM
  #16  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
About the other one. The picture and location don't ring a bell.

IF that nipple is b/t two oil injector nipples on the intake manifold, then that is the fuel injector air bleeds nipple. It also goes to the back of the throttle body to one of the four nipples back there one above the other. ANY nipple back there BUT the lower one will do. NEVER the bottom nipple.
Reply
Old Mar 8, 2007 | 08:41 PM
  #17  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
no, those aren't the lines i'm talking about but thanks for the info. anyways the spider thingy is near the oil filler neck it's not the one at the injectors. and the other one is part of the HARD LINES that we were talking about just that i don't have any more nipples to plug that too.
Reply
Old Mar 8, 2007 | 10:54 PM
  #18  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Oh, the Purge valve and the supply line to the FPR's SOLENOID.

On the intake manifold you'll see a nipple that is SLANTED aftwards. That nipple feeds the nipple near the Primary injectors. It goes in to the pipe in your picture then on to the FPR solenoid. The one with a Orange plug on it. Then it leaves the FPR solenoid and goes to the nipple in the JPG where I wrote FPR.

I'll let someone else describe where the Purge lines go.
Reply
Old Mar 8, 2007 | 11:22 PM
  #19  
tek_88's Avatar
Thread Starter
Senior Member
Tenured Member: 15 Years
iTrader: (21)
 
Joined: Jan 2007
Posts: 426
Likes: 0
From: oroville
so that nipple that is near the primary injectors(supply line) goes into the nipple that is slanted on the lim?
Reply
Old Apr 6, 2007 | 11:57 AM
  #20  
dblboinger's Avatar
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (3)
 
Joined: Sep 2003
Posts: 920
Likes: 0
From: DeSoto IL
See if this helps you.

http://www.autosportracetech.com/RX-7/vacuum.jpg
Reply
Old Apr 6, 2007 | 12:21 PM
  #21  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Originally Posted by dblboinger
That's obviously NOT series four.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
Sep 16, 2018 07:16 PM
ZacMan
Build Threads
4
Sep 19, 2015 09:20 PM
Nosferatu
2nd Generation Specific (1986-1992)
7
Sep 5, 2015 02:13 PM
Frisky Arab
2nd Generation Specific (1986-1992)
5
Sep 4, 2015 06:17 PM
rotor_veux
2nd Generation Specific (1986-1992)
5
Sep 3, 2015 07:10 PM




All times are GMT -5. The time now is 03:34 AM.