Reply
 
Thread Tools Display Modes
 
Old 03-11-2008, 11:46 AM   #1
NRL
Senior Member
 
NRL's Avatar
 
Join Date: May 2007
Posts: 475
Send a message via Yahoo to NRL
How good is your Electrical Ground (to Body, to Frame)?

How good is your Electrical Ground (to Body, to Frame, Body To Frame)?

Shouldn't the Electrical Body Ground of the Sporto have the same reading (measuring in Ohm's off the Voltmeter) as the Ground to Frame?

Ground is Ground, but I was thinking of putting in a good thick ground line from the body ground of the Sporto to the Frame just to make sure..

I have two batteries and they both were not ground to the frame but they are grounded to the body of the sporto (one battery is of a stock configuration to ground; looks like two lines running to ground.)

Any Electrical Guru comment?
__________________

__________________
96 RB E-350 460v8 4x4 Custom RestoMod
Warn12kWinch,FFloater,LSlip,Pwtrx Locker 4.10 305x70x16 ToyoMTs,Eagle Alloys,Stove,4CF Ppane Fridge, Air CompTank,Supersprings, Bilstein Shocks,Deavers,CastIron Diff Case, Bullet Proof ReBuilt Transmission, Tubulator DeRale Trans Pan Cover, SSExhaust, KyoceraSolar, Tripplite UPS, 8D AGM, TivoHD, 24in HDLED
95 FJ80 ARB/Kaymar/Emu
2005 AMG CL65 691hp 875tq
NRL is offline   Reply With Quote
Old 03-12-2008, 07:57 PM   #2
Senior Member
 
scatter's Avatar
 
Join Date: Apr 2007
Location: Blairsden, CA (when not on the road)
Posts: 1,071
I'm not a Guru of anything, but I think you're right on in your thinking. I haven't been having any problems, but am going to check my resistance reading too. Seems to me that running a cable from body to frame is easy, cheap insurance.
__________________

__________________
Scatter
You can be anything you want on the Internet,
it amazes me that so many choose stupid....

2007 RB50, 6.0
K1WGB
scatter is offline   Reply With Quote
Old 03-13-2008, 01:29 AM   #3
Senior Member
 
Join Date: Jan 2008
Location: Clovis, CA
Posts: 200
ground wire

You bring up a very good point that everyone should be checking regularly, the battery cables. More issues arise from loose battery cables than you realize. These vans get subject to 6.0+ earthquakes all the time, and with the amount of current flowing through these battery cables, connections can get loose and create many problems.

Regular battery cable checks will definitely pay off in the long run!

John K.
John Kalmbach is offline   Reply With Quote
Old 03-13-2008, 09:01 AM   #4
Senior Member
 
jage's Avatar
 
Join Date: Apr 2007
Location: Franktown, CO
Posts: 7,600
How about a list of battery cable locations?

Here is my guess:
Battery Terminals
Battery Ground Connection (to Frame)
Battery Separator
Battery (+) to Jump Stud (in front of wheel well 6.0L)
Battery to engine (?)
House Battery Terminals
Batteries to Invertor
Body Ground to Frame (is there one on the E350 normally?)

Where else should we check?

I knew a guy with a Scout and when he was done building there was no contact between the body and the frame (probably due to paint), caused him all kinds of problems until he figured it out.
__________________
and then
everything changed
jage is offline   Reply With Quote
Old 03-13-2008, 11:10 AM   #5
NRL
Senior Member
 
NRL's Avatar
 
Join Date: May 2007
Posts: 475
Send a message via Yahoo to NRL
I think most everything stock is grounded to the Body, even the original battery connections, black ground from the battery has two lines.. one goes to the engine and the other the body.. but not so sure about it going to the Frame.

In my case, I had a "lucky" short that started from the bumper to the frame and tried to find it's way to the body back to the battery. I got lucky since it took an easy path from the frame to the steering lines touching the brake lines just below master cylinder.. Lucky, because it was cooking from the arcing but I caught it in time! The coiled brake lines "glowed"!!

Long story short it was the faulty winch that was shorting to the frame..proved it with another known good winch; the wiring was good.

But that got me thinking after that since we noticed that the ohm's reading were not the same from a location to the frame versus to the body..

We at least added a ground wire from the second battery to the "same" ground as the first battery versus finding a nearest body ground. We also added insulation to isolate where it was arcing..

I'm not an electrical guru but I guess the best way to find out is with a ohm meter and measure your ohm resistance comparing to body and then comparing to frame.. they should be the same from the same point..

Now to notch it up.. Which ground would you ground the "House Battery"? The body or the frame?

I think the answer should be both..making sure there is a good ground between the body and the frame in the first place..
I'll be trying to find out how it done from the factory, if not, I'm adding one..
__________________
96 RB E-350 460v8 4x4 Custom RestoMod
Warn12kWinch,FFloater,LSlip,Pwtrx Locker 4.10 305x70x16 ToyoMTs,Eagle Alloys,Stove,4CF Ppane Fridge, Air CompTank,Supersprings, Bilstein Shocks,Deavers,CastIron Diff Case, Bullet Proof ReBuilt Transmission, Tubulator DeRale Trans Pan Cover, SSExhaust, KyoceraSolar, Tripplite UPS, 8D AGM, TivoHD, 24in HDLED
95 FJ80 ARB/Kaymar/Emu
2005 AMG CL65 691hp 875tq
NRL is offline   Reply With Quote
Reply

Thread Tools
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

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 03:43 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×