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Unread 03-29-2012, 06:04 PM   #1
warrior1670
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1986 CJ7 
 
Join Date: Nov 2008
Location: Pittsburgh, PA
Posts: 149
86 cj7 intake connections

What are the connections in this pic? They are all into the manifold. This isn't my jeep just a pic I found but I don't have anything connected to any of these on mine.

intake-pic.jpg  
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Unread 03-29-2012, 06:06 PM   #2
LT1CJ7
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1983 CJ7 
 
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Location: [duhm-as]
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From front to back:
Heater hose, CTO, CTO, manifold vacuum
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Unread 03-29-2012, 06:53 PM   #3
warrior1670
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is the heater hose onto the intake necessary? seems counter intuitive since colder air is denser and produces more power or is this a carb thingy? i'm an EFI guy.
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Unread 03-29-2012, 06:56 PM   #4
warrior1670
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so reading other posts (with the search function), the second cto in the pic goes to the carb and such. does the first just get blocked off or can it be left open. The extra's on the second cto need plugged right?
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Unread 03-29-2012, 07:02 PM   #5
LT1CJ7
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Quote:
Originally Posted by warrior1670 View Post
is the heater hose onto the intake necessary?
If you want to stay warm in the Burgh winters
It also helps warm up time.
I wouldn't worry about power loss from the 258.
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Unread 03-29-2012, 10:10 PM   #6
dslywalker
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this might help you out,plus there's a factory service manual posted in the forum also for 84-86
http://home.sprynet.com/~dale02/home.htm
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Unread 03-29-2012, 10:46 PM   #7
1986cj
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Not that it matters but that intake is pre 83ish. You have no knock sensor port.
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Unread 03-30-2012, 06:19 AM   #8
warrior1670
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1986 CJ7 
 
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Yes, this is pre 83. the Jeep had a 4 cyclinder that he PO swapped out. 258, T150, D20. The computer is there but not connected to the carb.
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