pos. ground - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 01-11-2009, 08:28 PM
Registered User
 
Last photo:
Join Date: Dec 2006
Location: southgale tx
Posts: 90
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
pos. ground

i'm putting a ele. fuel pump on a 1927 hupmoble that is pos.ground, and i need to know if i ground the pos. side and run a wire from the ing. switch to the neg. side of the fuel pump??

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-11-2009, 11:42 PM
C-10's Avatar
Revolution Calling
 

Last journal entry: Poverty caps live on.
Last photo:
Join Date: Apr 2008
Location: Nashport, Ohio
Posts: 920
Wiki Edits: 0

Thanks: 2
Thanked 6 Times in 6 Posts
Yes, totally backwards from typical negative ground systems. 6volt and 12volt both.

Just make sure the pump is NOT grounded by the bracket/case and only by the wires. Most vane style fuel pumps will actually run backwards but will not pump fuel if you were to hook them up backwards electrically.

If you are still unsure, use a voltmeter to determine polarity at the point of connection.
.
.
.
"Dollars are like votes, except that they actually count."
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-13-2009, 04:05 PM
curtis73's Avatar
Hates: Liver. Loves: Diesel
 
Last wiki edit: How to find cheap parts
Last journal entry: Found an LQ9 today
Last photo:
Join Date: Dec 2005
Location: Carlisle, PA
Age: 41
Posts: 5,285
Wiki Edits: 16

Thanks: 18
Thanked 15 Times in 11 Posts
Yup. sometimes its easier to think of it from the view of the electrical flow. The electricity is still flowing in the same direction. In a neg ground vehicle, the metal of the car is connected to the ground. On a pos ground vehicle, the whole car is connected to the positive side. So the juice is still flowing the same way, its just that you ground the positive side of the accessory, and "supply" juice through the neg wire.
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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

Posting Rules
You may post new threads
You may 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
6 volt pos. ground elect.oil psi gage rick laplante Electrical 11 07-27-2007 08:42 AM
pos. ground to neg. radio rick laplante Electrical 7 05-01-2007 07:12 PM
garage wiring montea Garage - Tools 33 01-18-2007 09:33 AM
6 volt pos. to neg. ground rick laplante Electrical 9 10-16-2006 02:50 PM
39 Ford - Neg or Pos ground? Tiger Electrical 16 11-14-2002 04:56 AM


All times are GMT -6. The time now is 09:28 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.