Go Back   Land Rover Forums - Land Rover Enthusiast Forum > Vehicle Line Up > Discovery I
Sign in using an external account
Register Forgot Password?
Search

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-29-2011, 06:24 AM
DiscoBlanco's Avatar
Senior Member
 
Join Date: Sep 2011
Posts: 280
Default Vacuum System Layout

I Checked the Manual and the RAVE...

I am looking for a diagram or a schematic that details the vacuum system layout. My vacuum system is a complete mess.... Charcoal canister is not connected, no cruise control, etc. It may be the source of some of my nagging little issues...

I want to get all new vacuum lines and do it right.
__________________
1996 Discovery SE7 - 160,000 miles
2001 BMW M5 - 95,000 miles
1986 BMW M3
2006 BMW X5M
2000 Buell X1 Lightning - 16,000 miles
1971 Slick Craft SCH-280 - 2600 hours
Reply With Quote
  #2  
Old 09-29-2011, 11:22 AM
Member
 
Join Date: Sep 2011
Location: Atlanta
Posts: 87
Default

I have a 94 and I am also looking for the vacuum diagram with no success. It looks like it is found on the radiator core support but mine is completely faded.
Reply With Quote
  #3  
Old 09-29-2011, 01:58 PM
Cosmic88's Avatar
Senior Member
 
Join Date: Jul 2010
Location: Swampy Sandbar, USA
Posts: 598
Default

Quote:
Originally Posted by alpinacsi View Post
I have a 94 and I am also looking for the vacuum diagram with no success. It looks like it is found on the radiator core support but mine is completely faded.
The Cruise control vac system has nothing to do with the engine vac. lines or system. The CC pump under the left headlamp has its suction line leading aft under the air filter box up to a plastic T just behid the ABS junction. One vac. line T's off toward the throttle control diaphram and the other line leads throught he bulkhead to the lower brake switch.

On your engine the vac lines run from the left side of the plenum to the fuel pressure regulator and the other leads to the vac. advance module on your distributor. On the right side of the plenum the hard plastic line runs to the charcoal canister.

That's all. Used to be that the vac. line diagram was on the underside of the hood at the leading edge.
__________________
Cosmo - FLRC, President
-'87 RRC -Toyota 3B Diesel, LT95, stuff...
-'94 RRC -
-'95 D1 R380
-'66 IIa 88" - sold and missed


Download WORKSHOP manuals here -
http://www.landroverresource.com/ &
http://www.landroverweb.com/landrove...rover-manuals/

Quote:
Originally Posted by TRIARII View Post
This forum is falling apart! WTF! Why cant we ALL just get along here?
-Julian
Reply With Quote
  #4  
Old 09-29-2011, 03:26 PM
DiscoBlanco's Avatar
Senior Member
 
Join Date: Sep 2011
Posts: 280
Default

Thanks for the heads up. Regardless, I want everything to be the way it should. I have a T coming out of the FW on the drivers side and its not connected to anything. There is a vacuum port on the throttle linkage that is not connected. Charcoal canister is not connected...

I will look for the diagram, but most of those images under the bonnet are pretty well washed out after 15 years.
__________________
1996 Discovery SE7 - 160,000 miles
2001 BMW M5 - 95,000 miles
1986 BMW M3
2006 BMW X5M
2000 Buell X1 Lightning - 16,000 miles
1971 Slick Craft SCH-280 - 2600 hours
Reply With Quote
  #5  
Old 09-29-2011, 04:43 PM
Cosmic88's Avatar
Senior Member
 
Join Date: Jul 2010
Location: Swampy Sandbar, USA
Posts: 598
Default who likes pictures?

Since you searched and have rave and actually tried to find the answer I am more than happy to help you sir.

Diagram....
Click the image to open in full size.

the other diagram...
Click the image to open in full size.

This is the vacuum pump for the cruise control system. (It is completely seperate from the engine vacuum system) My finger is touching the primary vac. line which leads back to the T. Normaly this pump resides under the circular punched out hole in the metal framing under the Jack / Power steering res. / air horn. I just pulled it our to show you...
Click the image to open in full size.

The CC vac. line T... the 90* section leads to the CC diaphram on the throttle linkage and the 180 * section leads throught the Firewall / bulkhead to the brake line vacuum switch.
Click the image to open in full size.

The T leads to this diaphram controlling throttle for CC...
Click the image to open in full size.

This is the fuel pressure regulator line... I was incorrect earlier when I described the routing of this vac line to you... I was working from memory... The FPR vac line terminates at the nipple on the plenum under the IAC bypass hose on the backside of the plenum.
Click the image to open in full size.



Keep in mind this is my '95 Disco so you have no vac line running from the top of the plenum to the distributor (which you don't have. )
__________________
Cosmo - FLRC, President
-'87 RRC -Toyota 3B Diesel, LT95, stuff...
-'94 RRC -
-'95 D1 R380
-'66 IIa 88" - sold and missed


Download WORKSHOP manuals here -
http://www.landroverresource.com/ &
http://www.landroverweb.com/landrove...rover-manuals/

Quote:
Originally Posted by TRIARII View Post
This forum is falling apart! WTF! Why cant we ALL just get along here?
-Julian

Last edited by Cosmic88; 09-29-2011 at 04:54 PM.
Reply With Quote
  #6  
Old 09-29-2011, 09:12 PM
DiscoBlanco's Avatar
Senior Member
 
Join Date: Sep 2011
Posts: 280
Default

Wow Sir! That is excellent work! Thank you. This should be a sticky!
__________________
1996 Discovery SE7 - 160,000 miles
2001 BMW M5 - 95,000 miles
1986 BMW M3
2006 BMW X5M
2000 Buell X1 Lightning - 16,000 miles
1971 Slick Craft SCH-280 - 2600 hours
Reply With Quote
  #7  
Old 10-10-2011, 07:31 AM
DiscoBlanco's Avatar
Senior Member
 
Join Date: Sep 2011
Posts: 280
Default

Question.....

The Charcoal canister is supposed to hook up to the "fuel Tank" somewhere. I do not see an obvious place for this think to hook up to. I imagine there should be some sort of fitting at the firewall? Do I need to run a new line all the way to the tank?
__________________
1996 Discovery SE7 - 160,000 miles
2001 BMW M5 - 95,000 miles
1986 BMW M3
2006 BMW X5M
2000 Buell X1 Lightning - 16,000 miles
1971 Slick Craft SCH-280 - 2600 hours
Reply With Quote
  #8  
Old 10-10-2011, 08:53 PM
Member
 
Join Date: Aug 2010
Location: tx
Posts: 75
Default

just curios, how would not having any vacum lines properly connected negatively affect the truck? i am missing my t connection and the ac vac line
__________________
1996 Land Rover Discovery 4.0 5 speed
1989 Nissan Safari Patrol TD42 5 speed w/PTO


245/75/16 TreadWright Guard Dogs, Safari Snorkel
Reply With Quote
  #9  
Old 10-10-2011, 09:02 PM
tweakrover's Avatar
Senior Member
 
Join Date: May 2009
Location: North Carolina Coast
Posts: 1,334
Default

The extra air coming in the intake causes high idle not the mention the fact its unfiltered
Reply With Quote
  #10  
Old 10-11-2011, 04:41 AM
Cosmic88's Avatar
Senior Member
 
Join Date: Jul 2010
Location: Swampy Sandbar, USA
Posts: 598
Default

Quote:
Originally Posted by cationmoted View Post
just curios, how would not having any vacum lines properly connected negatively affect the truck? i am missing my t connection and the ac vac line
As said, no vac lines and the engine will run poorly... Also, as said, there are multiple and seperate vacuum systems. The T pictured above is for cruise control. The entire cruise control vac system is 100% independent of the engine or evap system. Missing or broken or inoperative cruise control vac lines will not affect engine running at all.
__________________
Cosmo - FLRC, President
-'87 RRC -Toyota 3B Diesel, LT95, stuff...
-'94 RRC -
-'95 D1 R380
-'66 IIa 88" - sold and missed


Download WORKSHOP manuals here -
http://www.landroverresource.com/ &
http://www.landroverweb.com/landrove...rover-manuals/

Quote:
Originally Posted by TRIARII View Post
This forum is falling apart! WTF! Why cant we ALL just get along here?
-Julian
Reply With Quote
Old 10-11-2011, 04:41 AM
 
 
 
Reply

Tags
1996, 95, classic, control, cruise, diagram, diagrams, discovery, fuel, land, layout, pressure, range, regulator, rover, vaccum, vacuum


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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


Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 11:29 AM.

Copyright © Internet Brands, Inc. All rights reserved.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014 vBulletin Solutions, Inc. All rights reserved.
SEO by vBSEO ©2010, Crawlability, Inc.
LAND ROVER and its logo are the registered trademarks of Land Rover. Land Rover is not affiliated with LandRoverForums.com.

Emails Backup