V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

86 vacuum diagram

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Old Apr 9, 2007 | 12:28 AM
  #1  
xplane's Avatar
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From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
vacuum diagram

I made this so i could better understand how the vac setup on my car works and when i was done i figured i would share it. I added where the Lines off of the T fitting go.

Oh and how much vacuum should my car pull? it has 15-16 at idle(550-650rpm) and i cant figure out where its leaking at(if it is). I have used all the little gas tricks people say to use and i cant find a leak. If i hear a whistle at part throttle is my TB leaking?

Was looking at the AutoZone site and this is the vac setup for 86-89 Camaros and Firebirds.

MOVED TO: TECH/General engine

Last edited by xplane; Apr 9, 2007 at 08:32 PM.
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Old Apr 9, 2007 | 02:15 AM
  #2  
xplane's Avatar
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Joined: Sep 2004
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From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
Re: 86 vacuum diagram

Heres one for the 82-84 2.5L TBI & 85-86 2.8L TBI. If there are any lines not shown on the diagram that should be let me know and i will update the diagram. I am gonna try to remake all the vacuum diagrams in the easier to understand colored form.

Im not shure which is the proper indication of the front.

Mostly Im just doing it to get my Illustrator skills back up to snuff.

Last edited by xplane; Apr 9, 2007 at 08:47 PM.
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Old Apr 9, 2007 | 02:51 AM
  #3  
xplane's Avatar
Thread Starter
Senior Member
 
Joined: Sep 2004
Posts: 830
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From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
Re: 86 vacuum diagram

82 2.8L Carb
83 2.8L Carb

I think I'm crazy, cause I am having so much fun making these.

wow I feel sorry for the people with carbed 2.8L's what a tangle.

EDIT: I'm gonna stop for now if anyone wants me to make more i will,

Last edited by xplane; Apr 9, 2007 at 08:49 PM.
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Old Apr 9, 2007 | 08:59 AM
  #4  
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From: Upstate, Ny
Re: 86 vacuum diagram

thanks man, im am acutaully looking over the autozone black and white diagram and its pretty confusing, this helps out alot.
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Old Apr 9, 2007 | 09:48 AM
  #5  
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From: Tallahassee, FL
Car: 89 V6 Camaro
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42 open diff
Re: 86 vacuum diagram

This will indeed help out alot for me. I still have unfound leaks.
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Old Apr 9, 2007 | 01:41 PM
  #6  
xplane's Avatar
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Joined: Sep 2004
Posts: 830
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From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
Re: 86 vacuum diagram

Well i hope they do help yalls.

Like i said if you find any errors let or missing stuff me know and i will fix them.

on the more complex ones its so hard to read the B&W charts that i am bound to miss something. Only one im shure of is the 86-89 2.8L cause thats the setup on my car.

Kinda odd tho as my cars vin shows up as a 85.\

EDIT: added 83 2.8L Carb

Last edited by xplane; Apr 9, 2007 at 02:59 PM.
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