Default Vacuum Line Help..With Pictures 

Old 08-20-2011, 05:43 PM   #1
CJKrawler is offline
CJKrawler
Senior Jeeper
Vehicle(s): 1984 CJ 7 2005 Liberty CRD
 
CJKrawler's Avatar
 
Join Date: Mar 2010
Location: Cleveland, OH
Age: 41
Posts: 700
Images: 8
Thanks: 8
Thanked 31 Times in 31 Posts
Rep Power: 10 CJKrawler is on a distinguished road
Need some help with a 360. I just got this thing, and I am trying to get it running. I was able to get it to start today, once a good battery was put in. Ater getting it running, I found a fuel line leaking . Ran to the parts store, got a new fuel and air filter, and some rubber fuel lines. Truck started, and ran a little better, but not much. I then discovered fuel leaking from around the carb, still not good. I am assuming the issue is from the gasket, so I pulled carb off, the gasket looks decent, but I need to replace it now anyways. While pulling the carb off, I am discovering some missing/disconnected vacuum lines that may be causing this thing to not stay running. Here is what I know for sure.

Electric fuel pump was installed at some point for t/s purposes
A holley carb replaced the original 2 barrell carb, i do not know the model of it.
There are two ports for lines on the air cleaner housing, but only one was connected to anything.
The line in the first picture was not connected to anything, nor was it blocked off. I have no idea what the piece that it goes to is for.

Any help, thoughts, or anything else would be appreciated. And if there are diagrams for the vacuum system, that would be great too.

Oh, and in the 3rd picture, lines marked 1 and 2 were connected to the air clear (1), and the back of the carb(2)

vaccum-line-1.jpg

vaccum-line-2.jpg

vaccum-line-3.jpg

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote


Register for a free membership and remove this add!
Vote for Jeep-CJ.com daily!
Vote for Jeep-CJ.com

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 06:54 PM   #2
BusaDave9 is offline
BusaDave9
Jeep-CJ.com Admin
Gold Supporter

Vehicle(s): 1979 Jeep CJ5 with 304 V8, T18 Transmission, Dana 20 Transfer case with TeraLow 3:1 gears, 4.88 axle gears, Detroit Locker up front and Ox Locker in back with 1 piece axle shafts, 36" SuperSwamper SX Tires, Shackle reversal, MileMarker Hydraulic winch, MSD 6A ignition.
 
BusaDave9's Avatar
 
Join Date: Jan 2010
Location: Durango, Crawlarado
Age: 58
Posts: 4,399
Images: 353
Thanks: 506
Thanked 1,697 Times in 909 Posts
Rep Power: 10 BusaDave9 will become famous soon enough
Here's some vacuum diagrams. They are for a CJ with a 304 but it's the same engine as a 360 except the 360 has a wider bore. What did the 360 come out of? Did it ever run good in the CJ?



__________________
Busa

Click here to see my '79 CJ5

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 07:08 PM   #3
CJKrawler is offline
CJKrawler
Senior Jeeper
Vehicle(s): 1984 CJ 7 2005 Liberty CRD
 
CJKrawler's Avatar
 
Join Date: Mar 2010
Location: Cleveland, OH
Age: 41
Posts: 700
Images: 8
Thanks: 8
Thanked 31 Times in 31 Posts
Rep Power: 10 CJKrawler is on a distinguished road
Thanks Busa, the 360 is still in a 77 J20 that I just picked up.

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 07:08 PM   #4
BusaDave9 is offline
BusaDave9
Jeep-CJ.com Admin
Gold Supporter

Vehicle(s): 1979 Jeep CJ5 with 304 V8, T18 Transmission, Dana 20 Transfer case with TeraLow 3:1 gears, 4.88 axle gears, Detroit Locker up front and Ox Locker in back with 1 piece axle shafts, 36" SuperSwamper SX Tires, Shackle reversal, MileMarker Hydraulic winch, MSD 6A ignition.
 
BusaDave9's Avatar
 
Join Date: Jan 2010
Location: Durango, Crawlarado
Age: 58
Posts: 4,399
Images: 353
Thanks: 506
Thanked 1,697 Times in 909 Posts
Rep Power: 10 BusaDave9 will become famous soon enough
I installed a fuel pump that put out 7 psi. If your pump puts out much more than that it could overpower your float valves and flood the engine. The extra gas should go down the throat of the carb and not outside the carb. If your pump puts out too much pressure you may need a fuel regulator.
Holley 12-704 - Holley Fuel Pressure Regulators - Overview - SummitRacing.com
__________________
Busa

Click here to see my '79 CJ5

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 07:30 PM   #5
BusaDave9 is offline
BusaDave9
Jeep-CJ.com Admin
Gold Supporter

Vehicle(s): 1979 Jeep CJ5 with 304 V8, T18 Transmission, Dana 20 Transfer case with TeraLow 3:1 gears, 4.88 axle gears, Detroit Locker up front and Ox Locker in back with 1 piece axle shafts, 36" SuperSwamper SX Tires, Shackle reversal, MileMarker Hydraulic winch, MSD 6A ignition.
 
BusaDave9's Avatar
 
Join Date: Jan 2010
Location: Durango, Crawlarado
Age: 58
Posts: 4,399
Images: 353
Thanks: 506
Thanked 1,697 Times in 909 Posts
Rep Power: 10 BusaDave9 will become famous soon enough
A '77 J20 with a 360
There are a lot of vacuum diagrams with slight variation. Here are a couple more to mull over.

__________________
Busa

Click here to see my '79 CJ5

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 07:38 PM   #6
BusaDave9 is offline
BusaDave9
Jeep-CJ.com Admin
Gold Supporter

Vehicle(s): 1979 Jeep CJ5 with 304 V8, T18 Transmission, Dana 20 Transfer case with TeraLow 3:1 gears, 4.88 axle gears, Detroit Locker up front and Ox Locker in back with 1 piece axle shafts, 36" SuperSwamper SX Tires, Shackle reversal, MileMarker Hydraulic winch, MSD 6A ignition.
 
BusaDave9's Avatar
 
Join Date: Jan 2010
Location: Durango, Crawlarado
Age: 58
Posts: 4,399
Images: 353
Thanks: 506
Thanked 1,697 Times in 909 Posts
Rep Power: 10 BusaDave9 will become famous soon enough
Quote:
Originally Posted by CJKrawler View Post
There are two ports for lines on the air cleaner housing, but only one was connected to anything.
Where does the one line on the air cleaner go? I only have one and it goes to the oil cap.

you have a 2 barrel manifold. Do you have a 2 barrel Holley or a 4 barrel Holley and an adapter?
__________________
Busa

Click here to see my '79 CJ5

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 07:59 PM   #7
CJKrawler is offline
CJKrawler
Senior Jeeper
Vehicle(s): 1984 CJ 7 2005 Liberty CRD
 
CJKrawler's Avatar
 
Join Date: Mar 2010
Location: Cleveland, OH
Age: 41
Posts: 700
Images: 8
Thanks: 8
Thanked 31 Times in 31 Posts
Rep Power: 10 CJKrawler is on a distinguished road
I have made a few notes on the picture you posted. The one line fromt he air clearner goes to #1 in the picture. I will look the other diagrams over to see what I can see. I am still trying to figure out the mystery line that runs down near the distributor. It has not had anything attached to it in a while. To top things off, the truck has not ran reliably for the PO is several years, and they quit trying about a year ago.

f_engineupdatm_9a1fb52.jpg

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 08:00 PM   #8
CJKrawler is offline
CJKrawler
Senior Jeeper
Vehicle(s): 1984 CJ 7 2005 Liberty CRD
 
CJKrawler's Avatar
 
Join Date: Mar 2010
Location: Cleveland, OH
Age: 41
Posts: 700
Images: 8
Thanks: 8
Thanked 31 Times in 31 Posts
Rep Power: 10 CJKrawler is on a distinguished road
[/QUOTE]
you have a 2 barrel manifold. Do you have a 2 barrel Holley or a 4 barrel Holley and an adapter?[/QUOTE]

It looks to be a two barrel adapter.

I just saw your reply in the other thread about vapor lock, and the fuel pressure. I have been wondering about that myself. I need to get under there tomorrow and have a look at the block to see about the mechanical pump. The PO put a Napa fuel pump on that may be putting too much to it, I also need to find out which Holley I have so that I can determine how much pressure it should have going into it, if I keep the electric. Sound like I am thinking in the right direction?

Last edited by CJKrawler; 08-20-2011 at 08:08 PM..

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 08:08 PM   #9
BusaDave9 is offline
BusaDave9
Jeep-CJ.com Admin
Gold Supporter

Vehicle(s): 1979 Jeep CJ5 with 304 V8, T18 Transmission, Dana 20 Transfer case with TeraLow 3:1 gears, 4.88 axle gears, Detroit Locker up front and Ox Locker in back with 1 piece axle shafts, 36" SuperSwamper SX Tires, Shackle reversal, MileMarker Hydraulic winch, MSD 6A ignition.
 
BusaDave9's Avatar
 
Join Date: Jan 2010
Location: Durango, Crawlarado
Age: 58
Posts: 4,399
Images: 353
Thanks: 506
Thanked 1,697 Times in 909 Posts
Rep Power: 10 BusaDave9 will become famous soon enough
Quote:
Originally Posted by CJKrawler View Post
the mystery line that runs down near the distributor.
Their should be a line going to the vacuum advance on the distributor.
Do you have a hose that connects to your oil cap going to your air cleaner?
__________________
Busa

Click here to see my '79 CJ5

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote

Default Re: Vacuum Line Help..With Pictures 

Old 08-20-2011, 08:13 PM   #10
CJKrawler is offline
CJKrawler
Senior Jeeper
Vehicle(s): 1984 CJ 7 2005 Liberty CRD
 
CJKrawler's Avatar
 
Join Date: Mar 2010
Location: Cleveland, OH
Age: 41
Posts: 700
Images: 8
Thanks: 8
Thanked 31 Times in 31 Posts
Rep Power: 10 CJKrawler is on a distinguished road
Quote:
Originally Posted by BusaDave9 View Post
Their should be a line going to the vacuum advance on the distributor.
Do you have a hose that connects to your oil cap going to your air cleaner?
I will go back and look at the distributor again, but I don't recall seeing one. Yes, I do have a line from the oil cap to the air cleaner. Will edit once I look at the dist.

Ok, I did find the line going to the distibutor, and it is already connected.

 

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Stumble this Post!
Reply With Quote
Reply

Bookmarks

Tags
help..with , line , pictures , vacuum


Currently Active Users Viewing This Thread: 3 (0 members and 3 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
vacuum line question neal90 Drivetrain 3 04-30-2013 06:34 AM
Vacuum line diagram Ironmerganser Misc CJ Discussion 3 07-02-2011 07:45 AM
1986 CJ7 Vacuum Line Diagram RyCa Drivetrain 1 10-04-2010 04:19 PM
Vacuum Line Diagram DirtySanchez83 Drivetrain 13 03-01-2010 04:39 PM
Vacuum line diagram rebelfordmustang06 Drivetrain 7 09-03-2009 01:53 PM


Vote for Jeep-CJ.com