battery neg

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TheTecher

TheTecher

Evan the jeeper.
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Where does the neg cable bolt to, on the engine or frame. Also where would the ground strap be located?

Evan
 
Ground strap is right side of firewall near heater hoses to rear of right head. Battery ground cable goes to engine block , below left head, behind power steering pump.
 
Evan Pratt said:
Where does the neg cable bolt to, on the engine or frame. Also where would the ground strap be located?

Evan
Click to expand...

I just rewired my car with a Ron Francis wiring kit. They recommend that the negative battery cable should be run to a starter or transmission mounting bolt. They also recommend that the frame and body ground should be run to the same starter or transmission mounting bolt.

Good Luck!
 
RedFish said:
Ground strap is right side of firewall near heater hoses to rear of right head. Battery ground cable goes to engine block , below left head, behind power steering pump.
Click to expand...

Do you have a pic of this
 
Far FAR more important about "just where" it goes is "just what" it does.

You want the main battery neg ground hooked to the block/ transmission because on startup, THAT is where the heaviest current the car ever uses will be seen---by the starter.

The ground strap from the engine/ transmission to the body/ frame transfers the neg. ground side of the circuit to accessories such as lights, stereo, AS WELL AS tying the voltage regulator CASE (ground) AS CLOSE AS POSSIBLE (in voltage) to battery negative.

The more 'stuff' you have---high current lamps, AC blower, rear defroster, big big stereo, etc, etc, the bigger this ground strap needs to be

ALSO it often helps for radio noise---and in this day and age---this "noise" is also present in ways "you cannot hear" ---that is--- the r.f. noise can affect gauges in newer systems, electronic ignition and E.F.I. and other control systems.

So you may need multiple ground straps from the engine to the frame, and on conventional autos, a couple of sort straps back near the rear of the hood to the firewall.
 
67Dart273 said:
Far FAR more important about "just where" it goes is "just what" it does.

You want the main battery neg ground hooked to the block/ transmission because on startup, THAT is where the heaviest current the car ever uses will be seen---by the starter.

The ground strap from the engine/ transmission to the body/ frame transfers the neg. ground side of the circuit to accessories such as lights, stereo, AS WELL AS tying the voltage regulator CASE (ground) AS CLOSE AS POSSIBLE (in voltage) to battery negative.

The more 'stuff' you have---high current lamps, AC blower, rear defroster, big big stereo, etc, etc, the bigger this ground strap needs to be

ALSO it often helps for radio noise---and in this day and age---this "noise" is also present in ways "you cannot hear" ---that is--- the r.f. noise can affect gauges in newer systems, electronic ignition and E.F.I. and other control systems.

So you may need multiple ground straps from the engine to the frame, and on conventional autos, a couple of sort straps back near the rear of the hood to the firewall.
Click to expand...


Excellent post, right to the point!
 
scuba0331 said:
I just rewired my car with a Ron Francis wiring kit. They recommend that the negative battery cable should be run to a starter or transmission mounting bolt. They also recommend that the frame and body ground should be run to the same starter or transmission mounting bolt.

Good Luck!
Click to expand...

Thats the way its done today. The engineers discovered some faults related to current or positive and negative ions traveling through the engine parts.
 
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