5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

12V vacuum location?

Thread Tools
 
Search this Thread
 
Old Jun 27, 2009 | 02:21 PM
  #1  
woodly1069's Avatar
Thread Starter
|
Diesel Fan
Joined: Apr 2009
Posts: 67
Likes: 0
From: Louisville
Default 12V vacuum location?

Well I just got in my new Autometer pillar set and they are NICE! I was wondering if anyone had a good location to pull vacuum from. I tried up top to the diaphram on the inside drivers fender and nothing. Since this thing isn't full of vacuum lines like my old gassers I'm a little confused about where to get the best signal. I have a 60 PSI gauge; what should I be getting when I mash it anyways; 20? Since we are on the subject I will need to install the pyrometer as well and there is some discussion about the best place for that as well. As usual, any input is appreciated.
 
Reply
Old Jun 27, 2009 | 07:33 PM
  #2  
Dr. Evil's Avatar
BOMBARDIER
Joined: Mar 2007
Posts: 23,293
Likes: 1,322
From: North of You
Default

Why are you measuring Vacume?

Are you talking about turbo boost?


Boost:

Name:  gauge_boost_59liter.jpg
Views: 335
Size:  16.4 KB


Pyrometer (Pre-turbo is much better than post-turbo):

Name:  pyrohole.jpg
Views: 127
Size:  18.2 KB

Name:  pyromount.jpg
Views: 168
Size:  15.4 KB

Name:  110_2363.jpg
Views: 121
Size:  51.0 KB

Name:  110_2365.jpg
Views: 135
Size:  56.8 KB
 

Last edited by Dr. Evil; Jun 27, 2009 at 08:30 PM.
Reply
Old Jun 27, 2009 | 08:19 PM
  #3  
JKM's Avatar
JKM
Diesel Wrench
Joined: Dec 2007
Posts: 568
Likes: 69
From: Sussex NB
Default

I'm with doc, there is no vacuum on a diesel engine as there is no restriction in the intake. There is however a vacuum pump on the engine that supplies vacuum for the brake booster , cab vents, 4x4 actuator, and cruise control, but this does not need to be monitored.
 
Reply
Old Jun 30, 2009 | 12:10 AM
  #4  
davo79's Avatar
Diesel Enthusiast
Joined: Nov 2008
Posts: 435
Likes: 4
From: california
Default

My 95 has no vacum pump it pulls the vacum off the side of the block just below the fuel pump so to say a diesel has no vaccum is crap all engines create vaccum somehwere the only time you would need to measure vaccum is if you have a vaccum opperated exhaust break. And that is only so you can make sure there is enough vaccum to operate it
 
Reply
Old Jun 30, 2009 | 12:11 AM
  #5  
94cummins12v's Avatar
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

that is the vacuum pump
 
Reply
Old Jun 30, 2009 | 03:07 AM
  #6  
davo79's Avatar
Diesel Enthusiast
Joined: Nov 2008
Posts: 435
Likes: 4
From: california
Default

Yeah if you're calling the whole engine a vaccum pump I suppose it is but unlike the 24valve motors there is no electric vaccum pump on the engine
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Diesel Bombers
Latest Automotive Industry News
0
Aug 13, 2015 10:10 AM
cutthroatxxx
24 Valve 2nd Gen Dodge Cummins 98.5-02
1
Mar 13, 2015 08:41 AM
Tory4
For Sale
0
Feb 1, 2015 08:33 PM
casper83
12 Valve 2nd Gen Dodge Cummins 94-98
0
Jan 21, 2015 09:36 PM
Diesel Bombers
Latest Automotive Industry News
0
Nov 7, 2014 05:40 PM




All times are GMT -5. The time now is 06:19 AM.