Grounds

Charging, starting, lighting, gauges, HVAC

Moderators: FORDification, Thunderfoot

Post Reply
User avatar
$500F100
New Member
New Member
Posts: 30
Joined: Thu Jan 11, 2007 4:57 pm
Location: Hobbs, NM

Grounds

Post by $500F100 »

I am still working on getting my charging system up and working properly. I am in the process of checking all the grounds. Where does the chassis typically ground to the frame? What gauge wire should be used for engine to chassis and chassis to frame grounds. :?
1970 F100 Sport Custom 360ci LWB

My Truck
User avatar
MadMaxetc
Blue Oval Fanatic
Blue Oval Fanatic
Posts: 850
Joined: Wed Jan 03, 2007 10:48 pm
Location: Kansas, Wichita
Contact:

re: Grounds

Post by MadMaxetc »

I ground the firewall to the engine and the engine to the frame. I also put a wire from the bottom of the firewall to the frame.
Dan

Project: '63 F-100 LWB / 460 / C6 / 2x4 / Work In Progress!
Daily Driver: '67 F-250 Converted to F-100 LWB / 300 / T-5 / 9" 3.70:1 / 235/75R15 Tires
1/4 mile in 17.64s @ 75mph (it's 4200lbs!!!)
"Work Harder! Millions On Welfare Depend On YOU!!"

FORD Girl

Photobucket Pictures
User avatar
$500F100
New Member
New Member
Posts: 30
Joined: Thu Jan 11, 2007 4:57 pm
Location: Hobbs, NM

Post by $500F100 »

Ok. Any Input on gauge of wire?
1970 F100 Sport Custom 360ci LWB

My Truck
User avatar
rjewkes
100% FORDified!
100% FORDified!
Posts: 3711
Joined: Sun Apr 17, 2005 1:09 am
Location: Missouri, Webb City
Contact:

Post by rjewkes »

Our ford ground battery negative to some where on the engine just under and behind the Alternator area. Then engine To Firewall.

I guess it don't hurt to ground to the frame from the firewall.
"It is better to keep your mouth shut and appear stupid than to open it and remove all doubt." - Mark Twain
'70 f250 4x4 Crew cab 460/C6 '72 F100 390/C6 9.8 MPG AVG. '89 Mercury Cougar LS Dual Exh. V6 . 18.9 MPG AVG. In Town.
Image
I don't want to give em a heart-attack. That is what would happen if I answered the door in the buff. Heck it almost scares me to death when I step out of the shower and look in the mirror.~Mancar1~
fuelly.com
fordman
100% FORDified!
100% FORDified!
Posts: 22329
Joined: Sun Aug 28, 2005 8:17 pm
Location: Kansas, Ottawa
Contact:

Post by fordman »

i'm not sure but i think 10 guage wire would be enough.
User avatar
cathynkeith
Preferred User
Preferred User
Posts: 420
Joined: Tue Aug 15, 2006 9:18 pm
Location: Texas, Longview

re: Grounds

Post by cathynkeith »

I have 2' braided strap from motor to frame and 4 other 1/2" straps around the truck, body to battery, cab to frame tail lights to body (flairside) and bed to frame.

Can not ground it too much!
http://s115.photobucket.com/albums/n292 ... type=local
Life is good...... when nothing is wrong that money can't fix.
1969 f100 flareside
1962 ECONOLINE TRUCK (done)
1975 Nova (almost done)
User avatar
jor
Blue Oval Fan
Blue Oval Fan
Posts: 682
Joined: Fri Jul 23, 2004 9:28 am
Location: Arizona, Tucson

re: Grounds

Post by jor »

Here's a photo of my braided connection from the engine to the cab and another of the negative battery cable to the engine (as rj said, right under the alternator). I think you can get the braided strap at Autozone or Checkers.
jor
You do not have the required permissions to view the files attached to this post.
User avatar
ICEMAN6166
Preferred User
Preferred User
Posts: 433
Joined: Thu Apr 07, 2005 9:53 pm
Location: Alaska, Talkeetna

re: Grounds

Post by ICEMAN6166 »

battery cables should be a minimum of AWG 4 but i always use AWG 2 or larger.the neg cable must be at least the same as the pos. but can be larger ,never should be smaller.same goes for the cable going from sol. to starter, can be slightly smaller than the one on the batt. but not larger.
if you have a AWG 2 on your battery you can use a 4 to the starter but not the reverse.

the other wire grounds are typically 10 AWG.
fitzwell
Blue Oval Fanatic
Blue Oval Fanatic
Posts: 779
Joined: Wed May 10, 2006 2:16 pm
Location: East of a rock, west of a hard place

re: Grounds

Post by fitzwell »

2 ga from the battery to the block. Ground strap...(the 1" wide kind , ) at the rear of the motor, bellhousing bolt to frame. Small ground strap (1/4 style) from the forewall to the engine (valve cover bolts) All connections clean, no rust,junk,funk, paint...etc. Star washers at all points.

just my .02..but it works
As a metter of fact, i AM trying to keep up with the Jones'
Driving like Parnelli, Drinkin' like George
-------------------------------------------------------
User avatar
ratfink
Preferred User
Preferred User
Posts: 277
Joined: Fri Mar 18, 2005 10:10 pm
Location: Arizona, Tucson

re: Grounds

Post by ratfink »

The same amount of current (amps) flows thru the ground as thru the positive one. That is why you should have the same size ground cable as the positive one at the battery. :2cents:
Ratfink
Dennis
1968 F100 Ranger 390/ C6 (Mine again)
2008 Toyota FJ Cruiser Sandstorm
2007 3500 4X4 Dodge Cummins
Idleness is the mother of all vices.
User avatar
MadMaxetc
Blue Oval Fanatic
Blue Oval Fanatic
Posts: 850
Joined: Wed Jan 03, 2007 10:48 pm
Location: Kansas, Wichita
Contact:

re: Grounds

Post by MadMaxetc »

:yt:

I would not go to the valve cover. I would go to an intake bolt. I plan to put a longer stud on my 460 in the back so I can put another nut on it.
Dan

Project: '63 F-100 LWB / 460 / C6 / 2x4 / Work In Progress!
Daily Driver: '67 F-250 Converted to F-100 LWB / 300 / T-5 / 9" 3.70:1 / 235/75R15 Tires
1/4 mile in 17.64s @ 75mph (it's 4200lbs!!!)
"Work Harder! Millions On Welfare Depend On YOU!!"

FORD Girl

Photobucket Pictures
Post Reply