Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 10-11-2016, 10:55 AM   #1
Moderator Emeritus
 
barmcd's Avatar


 
Monaco Owners Club
Texas Boomers Club
Join Date: Nov 2015
Location: Central Texas
Posts: 13,426
Why Does the Turbo Boost Gauge Have Negative Numbers?

The turbo boost gauge in my Dynasty is marked in 5 lb increments in a clockwise direction (5, 10, 15 etc) and 10 lb increments in a counter clockwise direction (10, 20, 30). It has zero in the middle and I've never seen the needle move left of zero. Is that even possible? If so, what would cause it?
__________________
Dennis and Katherine
2000 Monaco Dynasty
barmcd is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-11-2016, 11:10 AM   #2
Senior Member
 
Old-Biscuit's Avatar
 
Join Date: Nov 2015
Posts: 26,692
Multi-use gauge for GAS and Diesel Models.

Gas will pull vacuum and have boost if turbo/supercharger used
Diesel will only have boost with turbo
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
Old-Biscuit is offline   Reply With Quote
Old 10-11-2016, 12:48 PM   #3
Senior Member
 
Captjake1's Avatar
 
Monaco Owners Club
Join Date: May 2015
Location: Where I happen to land
Posts: 2,529
...I use one when I am having a really bad day...
__________________
John and Debi
2008 Beaver Contessa, 2005 Jeep Grand Cherokee,
28 years retired Fire Captain Tales of the Muttley Crew
Captjake1 is offline   Reply With Quote
Old 10-11-2016, 12:51 PM   #4
Senior Member
 
nukerj's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Sep 2016
Location: Monument, CO
Posts: 216
A turbo engine still pulls a vacuum at idle and decel. It will only have positive boost pressure when the turbo generates more cfm's than the engine consumes.
__________________
2014 Fleetwood Discovery 40G -> '16 Yukon Denali
Mechanical and Electrical Engineer
"De Opresso Liber"
nukerj is offline   Reply With Quote
Old 10-11-2016, 07:41 PM   #5
Senior Member
 
10Boomer's Avatar
 
Join Date: May 2012
Posts: 2,947
Might check didn't think diesels create vacuum like gas engines.


Sent from my iPhone using iRV2 - 2008 Monaco Camelot 40 PDQ
__________________
Perry & Julie: 2008 Monaco Camelot 40PDQ, 400ISL, Toad; 2015 Chevy Equinox.
[SIGPIC][/SIGPIC]
10Boomer is offline   Reply With Quote
Old 10-11-2016, 09:13 PM   #6
Senior Member
 
windsorbill's Avatar
 
Monaco Owners Club
Join Date: Jun 2011
Location: CA
Posts: 4,457
Quote:
Originally Posted by 10Boomer View Post
Might check didn't think diesels create vacuum like gas engines.


Sent from my iPhone using iRV2 - 2008 Monaco Camelot 40 PDQ
Your correct. A diesel can't create vacuum without some sort of restriction in. Some older diesels had throttle plates that created vacuum, but that's a long time ago. Nothing like that now, especially on moho's. Not enough to run any accessories, for sure.
today diesels have vacuum pumps to run anything requiring a vacuum.
__________________
Bill & Brigitte
06 Windsor PEQ, Cummins 400 ISL
2014 Honda CRV or 2012 Jeep
windsorbill is offline   Reply With Quote
Old 10-11-2016, 09:15 PM   #7
Senior Member
 
windsorbill's Avatar
 
Monaco Owners Club
Join Date: Jun 2011
Location: CA
Posts: 4,457
Added note,


I guess if you have a dirty air filter, you'll create a restriction, thus creating a vacuum.
__________________
Bill & Brigitte
06 Windsor PEQ, Cummins 400 ISL
2014 Honda CRV or 2012 Jeep
windsorbill is offline   Reply With Quote
Old 10-11-2016, 09:18 PM   #8
Senior Member
 
Old-Biscuit's Avatar
 
Join Date: Nov 2015
Posts: 26,692
Quote:
Originally Posted by windsorbill View Post
Added note,


I guess if you have a dirty air filter, you'll create a restriction, thus creating a vacuum.

No intake manifold..no vacuum on diesel
No throttle..no vacuum
Diesel is operated WOT with fuel/air metered.


Restricted air inlet........lack of power but still no vacuum
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
Old-Biscuit is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Turbo Boost What is the Maximum Boost that a 5.9, 275HP shogun1940 Cummins Engines 10 11-30-2014 07:47 PM
turbo boost gauge supply line. TEDDE Monaco Owner's Forum 0 05-27-2013 07:56 PM
Turbo boost gauge. Rob53 Monaco Owner's Forum 15 03-02-2011 12:13 PM
Turbo / Boost Gauge? Montrealer Cummins Engines 7 03-30-2010 12:20 PM
Anyone added a turbo boost gauge? RCtime Winnebago Industries Owner's Forum 2 01-16-2008 02:58 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 02:00 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.