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

Vac lines information.

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Old Mar 25, 2005 | 09:22 AM
  #1  
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Vac lines information.

I have found 3 images of how the vac lines are supposed to be run after the rats nest removal.
The problem is each one conflicts with the other 2.

maybe someone can clear these all up.
Attached Thumbnails Vac lines information.-vacrack1.jpg   Vac lines information.-vacrack2.jpg   Vac lines information.-vacrac4.jpg  
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Old Mar 25, 2005 | 09:39 AM
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No, they all are simular, except for #2 does not remove the Purge control and #1 does not have the charcoal canister.

IMO you need the air bleed lines, FPR line, pressure sensor, and switching actuator line (if keeping the stock turbo set up) and bypass (BOV) lines (all as shown in all the pictures).

As far as the purge and charcoal canister... well technically the car would run fine without them, but I might do a catch can if this was a street driven vehicle.
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Old Mar 25, 2005 | 06:42 PM
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well what hooks up to these lines?
Attached Thumbnails Vac lines information.-image_name.jpg  
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Old Mar 25, 2005 | 07:15 PM
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^Is that the cold start assist CRAP? rip it out and burn it.
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Old Mar 25, 2005 | 07:51 PM
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yep that's it, but be aware that no block-off plates set include the cold start assist system in their kit

So you're gonna have to custom fab one

P.S. 100TH POST
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Old Mar 26, 2005 | 01:00 AM
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Actually the block off set I got off of ebay had that one included.
It was like $35 for the set.
-Cliff
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Old Mar 26, 2005 | 11:56 AM
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Originally Posted by 87RX7TII
well what hooks up to these lines?

That's the Sub Zero Starting Assist system. Free fsm's are avilable on the web with graphics.
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Old Mar 26, 2005 | 03:29 PM
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Originally Posted by compuskills
Actually the block off set I got off of ebay had that one included.
It was like $35 for the set.
-Cliff
Really? a bunch of my friend bought block off plates kit and they never got this one included...
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Old Mar 27, 2005 | 07:00 AM
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Here is a link to what I bought.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=4517055701

I was very happy with what I got.

-Cliff
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Old Mar 27, 2005 | 05:23 PM
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3mm aluminium plate. Hacksaw or jigsaw. File or bench grinder. Drill. A very small amount of skill. Half an hour. Problem solved...
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Old Mar 27, 2005 | 05:42 PM
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^Is that the cold start assist CRAP? rip it out and burn it.

yup throw it away
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Old Mar 27, 2005 | 05:49 PM
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those are some very nice diagrams.. i have been searching for something similar so i can confidently rip out my emmissions on my 87SE, anyone know where to find some diagrams?
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Old Mar 27, 2005 | 08:57 PM
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bump for my related question
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Old Mar 27, 2005 | 10:47 PM
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Yeah! where is that thread for '88 N/A rats nest removal anyway?
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Old Mar 28, 2005 | 02:24 PM
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so that whole unit can come out!?

Ops I had the FPR plugged into the long line you can see on the right...

Where does the FPR connect to, in the pics i thought I has it right.
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Old Mar 28, 2005 | 02:27 PM
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These are the ones I have bookmarked.
Hope they help.

https://www.rx7club.com/showthread.p...ssions+removal

https://www.rx7club.com/showthread.p...ht=twin+scroll

https://www.rx7club.com/showthread.p...ssions+removal
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Old Mar 28, 2005 | 04:57 PM
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Is there a vac diagram for the na, if so, where? Can someone please post a link to it please.
thanks.
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Old Mar 29, 2005 | 12:07 AM
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also hoping to get a link for the NA diagrams..
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Old Mar 29, 2005 | 12:39 AM
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Originally Posted by 87RX7TII
Where does the FPR connect to...
Angled nipple on the inside of the LIM.
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Old Mar 29, 2005 | 12:40 AM
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NZ! you have the power! help!
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Old Mar 29, 2005 | 07:48 PM
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Bump!!!
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Old Mar 29, 2005 | 08:29 PM
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i have a question, would it be a problem if i didnt put block off plates on the uim where the BAC valve and such were?? casue that is just coolent passages right?? or does air pass threw thoes openings??
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Old Mar 29, 2005 | 08:35 PM
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Originally Posted by Ricer240sx
i have a question, would it be a problem if i didnt put block off plates on the uim where the BAC valve and such were?? casue that is just coolent passages right?? or does air pass threw thoes openings??
There is a tube attached to the BAC valve where coolant goes through. But if you remove the BAC valve itself, it will leave 2 huge holes open. This would constitute a huge vacuum leak.
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Old Apr 11, 2005 | 01:34 AM
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having all 3 pics next to each sure helps
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Old Apr 14, 2005 | 10:33 PM
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yes indeed.....i cant find the secondary injector bleed...where does it connect to on the LIM?
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