Vacuum Line Help - JeepForum.com
 
LinkBack Thread Tools
post #1 of 3 Old 10-15-2020, 12:58 PM Thread Starter
petecasey
Registered User
 
Join Date: Jul 2019
Posts: 7
Vacuum Line Help

Hi all -

Haven't posted much but have been on the forums for a while. I have a 1981 CJ7 from the east coast where I didn't have to pass SMOG ever. Now I need to connect all the vacuum lines and make sure everything works in order to pass. I believe I have mostly everything but needed some help from people who know more than I do! I've searched on the forums and have a Chilton manual but am still a little puzzled by a couple pieces.

The Jeep originally had a 6 cylinder and then the PO put a AMC 360 in there (not sure what year). The air pump is all hooked up and it seems like there's just a couple of hoses to connect - but there's a few that I'm having trouble identifying. My charcoal canister has two of 4 lines hooked up, and I know that one just needs to go to my fuel tank and another needs to go to my carb bowl vent, though I'm not sure exactly which one is the carb bowl vent...

The dual CTO pictured first is obviously not connected to anything, and has just been left alone since I got the Jeep. Not sure where these go? The diagrams are a little difficult for me to follow so I haven't made much progress here, and I'm also not sure if it's different since my Jeep started with the inline 6 and is now a AMC v8.

Next I have this capped off from my carb (MC2100), and another one capped from my CTO switch(?). Not sure where those should go.

The next photo is a pipe coming from my block, and another connection point for a hose from the carb. I'm not sure what their name / function is. Also capped off so I'm thinking it needs to go to something here.

Last photo I would just love to know what this is. I've never been sure and now would be a good time to ask.

Thanks for the time and help on my noobish questions - I'd welcome being pointed somewhere else for this also but as I've said, I've done research and have my manual but I just am not putting some things together

Attached Thumbnails
IMG_4670.jpg   IMG_4671.jpg   IMG_4672.jpg   IMG_4679.jpg   IMG_4605.jpg  

petecasey is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 10-15-2020, 07:23 PM
JEEPFELLER
Registered User
 
JEEPFELLER's Avatar
1977 CJ5 
 
Join Date: Dec 2015
Location: GREENWOOD
Posts: 384
Garage
You have moved from where to where?

----JEEPFELLER
JEEPFELLER is offline  
post #3 of 3 Old 10-16-2020, 05:59 AM
jeepdaddy2000
Registered User
 
jeepdaddy2000's Avatar
1971 CJ5 
 
Join Date: Jan 2002
Location: Eagle Point
Posts: 8,821
I can help with picture 2 and 4.

The capped pipe in #4 should be connected to the intake in #2. This is the fresh air intake for the choke heating tube bolted into the intake manifold choke tube in #2. It connects to the nipple pictured just to the right in 4. If you look at the the flange bolted to the intake in 2, you can see a "dot" opposite the tube. This is actually the hot air intake tube which has been broken off at surface level. It should be connected to the bottom nipple on the choke housing. The nipple on the choke housing draws air into the heater element through the tube in #2. You can hook the two together directly, which will eliminate dirty air from being introduced into the intake.

I notice the choke is completely disconnected as well. This will cause cold weather startup issues. I would address this issue in a separate thread.
Attached Images
   

Paperwork will ruin any military force.
Chesty Puller
jeepdaddy2000 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome