Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-18-2014, 12:22 PM   #15
Slide Out Society #001
 
GCinSC2's Avatar
 
2007 30' Classic S/O
Somewhere , South Carolina
Join Date: Apr 2010
Posts: 2,054
Quote:
Originally Posted by blkmagikca View Post
My 1999 Dodge Ram 2500 with Cummins Diesel came from the factory with a positive ground.

Care to check this or prove somehow?

Wishing the OP luck, just challenging the Dodge statement.

My 1997 and 2005 Dodge Cummins each have two batteries.
__________________

__________________
S/OS #001
2005 Dodge Ram 2500 5.9L 6 Speed
16" Michelins, Hi Spec Wheels, Max Brake, Carslile Actuator, Equal-i-zer, Dill TPMS. Campfire cook.
GCinSC2 is offline   Reply With Quote
Old 11-18-2014, 12:44 PM   #16
2 Rivet Member
 
1964 26' Overlander
Myrtle Beach , South Carolina
Join Date: Sep 2014
Posts: 37
Wasn't going to say anything because I didn't know if it might be a canadian thing but I second the Ram observation. Positive ground????
__________________

__________________
streamdreamn is offline   Reply With Quote
Old 11-18-2014, 01:03 PM   #17
Rivet Master
 
J. Morgan's Avatar

 
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton , Arkansas
Join Date: Mar 2013
Posts: 5,046
Images: 11
Really old thread, but really there isn't any issue when switching a vehicle from positive to negative ground.

Gauges don't care, starter doesn't care, most other electric motors don't care, lights don't care...

Therefore the easiest solution is to convert the vehicle to negative ground and 12volts at the same time.

Going to 12 volts isn't a challenge either, just a few more simple fixes.


1/2 Ton 4WD Truck, 72 Sovereign Hensley Arrow
__________________
The fact that I am opinionated does not presuppose that I am wrong......

J. Morgan is offline   Reply With Quote
Old 11-18-2014, 01:25 PM   #18
Slide Out Society #001
 
GCinSC2's Avatar
 
2007 30' Classic S/O
Somewhere , South Carolina
Join Date: Apr 2010
Posts: 2,054
Disagree.

Modern vehicles are packed with electronics and computers.
__________________
S/OS #001
2005 Dodge Ram 2500 5.9L 6 Speed
16" Michelins, Hi Spec Wheels, Max Brake, Carslile Actuator, Equal-i-zer, Dill TPMS. Campfire cook.
GCinSC2 is offline   Reply With Quote
Old 11-18-2014, 01:48 PM   #19
Moderator dude
 
Action's Avatar

 
1966 26' Overlander
Phoenix , Arizona
Join Date: Apr 2002
Posts: 6,069
Images: 13
By the mid to late 1950s all US built vehicles were negative ground. Most of the vehicles built in the UK (no matter the builder like Ford of England) were postive ground (earth) until the late 1960s with Austin holding out to 1971. Many of these have been coverted to negative ground.

Since about 1968 when electronic devices (mostly ignition products) were introduced on US built automobiles to start to comply with GVT regulation, the ground side of the system becomes very important as electronic devices require a clean and strong electrical signal from both sides. Many vehicles that had early electronic devices also had a new additional ground wire instead of relying on the engine block or frame as a good source of ground. This was to get a clean ground signal for the electronic device.

>>>>>>>>>>>>>Action
__________________
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!
Action is offline   Reply With Quote
Old 11-18-2014, 03:18 PM   #20
Rivet Master
 
J. Morgan's Avatar

 
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton , Arkansas
Join Date: Mar 2013
Posts: 5,046
Images: 11
Help! Help! Positive Ground Tow Vehicle

But I cant name a single car that uses any kind of computer that left the factory with a positive ground system.

As stated above, the last American vehicle to have positive ground lest the factory in 55.

I happen to own one of these cars that I converted to 12 volts and negative ground in just a little time, for not a lot of money.

http://i245.photobucket.com/albums/g...Sonoma-1-1.jpg

As an aside, pointless trivia, there are many who contend that positive ground is superior to negative ground in the transmission of power throughout a vehicle.

1/2 Ton 4WD Truck, 72 Sovereign Hensley Arrow
__________________
The fact that I am opinionated does not presuppose that I am wrong......

J. Morgan is offline   Reply With Quote
Old 11-18-2014, 03:32 PM   #21
Rivet Monster
 
wahoonc's Avatar

 
1975 31' Sovereign
1980 31' Excella II
Sprung Leak , North Carolina
Join Date: Jun 2003
Posts: 7,174
Images: 40
Quote:
Originally Posted by J. Morgan View Post
Really old thread, but really there isn't any issue when switching a vehicle from positive to negative ground.

Gauges don't care, starter doesn't care, most other electric motors don't care, lights don't care...

Therefore the easiest solution is to convert the vehicle to negative ground and 12volts at the same time.

Going to 12 volts isn't a challenge either, just a few more simple fixes.


1/2 Ton 4WD Truck, 72 Sovereign Hensley Arrow
Yes and no... I switched several British Sports cars from positive to negative ground. Tachometers had to be reconfigured and it didn't always work. I had one electric fuel pump that didn't take kindly to being told to run on negative ground.

Supposedly you got less corrosion with positive ground vehicles because of it was correct for the flow of electrons in a DC system.

Aaron
__________________
....so many Airstreams....so little time...
WBCCI #XXXX AIR #2495
Why are we in this basket...and where are we going
wahoonc is offline   Reply With Quote
Old 11-18-2014, 05:19 PM   #22
Rivet Master
 
J. Morgan's Avatar

 
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton , Arkansas
Join Date: Mar 2013
Posts: 5,046
Images: 11
Help! Help! Positive Ground Tow Vehicle

Some tachs might be a problem, fuel pumps maybe, both depending on their configuration.

In any case, back to the original post, if I had to tow a trailer, the most simple solution would be to convert the tow vehicle to 12V negative ground.

My Lincoln required 12 volt light bulbs, a 12 volt generator, a gage resistor from a Mustang, and a 12 volt to six volt converter to run my stock radio. The radio now runs negative ground with no ill effects.


1/2 Ton 4WD Truck, 72 Sovereign Hensley Arrow
__________________
The fact that I am opinionated does not presuppose that I am wrong......

J. Morgan is offline   Reply With Quote
Old 11-19-2014, 07:13 PM   #23
Rivet Master
 
blkmagikca's Avatar

 
1987 32' Excella
Nepean , Ontario
Join Date: Mar 2006
Posts: 1,136
I was told that my 1999 Dodge 2500 with 24-valve Cummins diesel has a positive ground system by the lead diesel mechanic at Southbank Dodge in Ottawa where I service my truck.
__________________
VE3JDZ
AIR 12148
1987 Excella 32-foot
1999 Dodge Ram 2500HD Diesel
blkmagikca is offline   Reply With Quote
Old 11-19-2014, 07:21 PM   #24
Rivet Master
 
Jim Foster's Avatar
 
1965 17' Caravel
1983 27' Excella
Walnut Grove/Laguna Woods , California
Join Date: Jun 2004
Posts: 1,615
Send a message via Yahoo to Jim Foster
Quote:
Originally Posted by Jim Foster View Post
Hudsons were negative ground until they went to 12v in 1954 or 55.

This should have read Hudsons were positive ground.


Sent from my iPhone using Airstream Forums
__________________
Past President, El Camino Real Unit WBCCI#6620
Street Rod Builder (see avatar)
Kite flier (check out links below)
http://www.youtube.com/my_videos?feature=mhee
https://www.youtube.com/watch?v=6y1_U2XQ0bI
Jim Foster is offline   Reply With Quote
Old 12-15-2014, 07:31 PM   #25
Vintage Kin
 
slowmover's Avatar
 
Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,603
Images: 1
Quote:
Originally Posted by blkmagikca View Post
I was told that my 1999 Dodge 2500 with 24-valve Cummins diesel has a positive ground system by the lead diesel mechanic at Southbank Dodge in Ottawa where I service my truck.

Negative ground
__________________
1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 9-cpm solo, 15-cpm towing
Sold: Silver Streak Model 3411
slowmover is offline   Reply With Quote
Old 12-15-2014, 10:23 PM   #26
Rivet Master
 
tjdonahoe's Avatar
 
2013 31' Classic
billings , Montana
Join Date: Feb 2010
Posts: 1,845
Model T's were neg. ground, the A's on up were positive ground until the early 50's.My 07 dodge with 2 batteries is neg ground, my 92 ford 7.3 made in Canada is negative ground...
__________________
tjdonahoe is offline   Reply With Quote
Old 12-16-2014, 08:50 PM   #27
Rivet Master
 
blkmagikca's Avatar

 
1987 32' Excella
Nepean , Ontario
Join Date: Mar 2006
Posts: 1,136
Quote:
Originally Posted by slowmover View Post
Negative ground
Regrettably, you are incorrect. The 1999 Dodge Ram 2500 Diesel has a positive ground. FYI, see https://www.google.com/search?q=1999...A&ved=0CD8QsAQ
__________________
VE3JDZ
AIR 12148
1987 Excella 32-foot
1999 Dodge Ram 2500HD Diesel
blkmagikca is offline   Reply With Quote
Old 12-16-2014, 09:26 PM   #28
Rivet Master
 
r carl's Avatar
 
Vintage Kin Owner
Lin , Ne
Join Date: Dec 2009
Posts: 2,057
Quote:
Originally Posted by blkmagikca View Post
Regrettably, you are incorrect. The 1999 Dodge Ram 2500 Diesel has a positive ground. FYI, see https://www.google.com/search?q=1999...A&ved=0CD8QsAQ
Google isn't 100% correct.
__________________

__________________
The higher your expectations the fewer your options.
r carl 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



Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:08 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.