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Picture of ground contacts in engine bay??? PLEASE

blazindorito

blazindorito

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I need to make sure all of my ground contacts are correct. I currently have battery to frame and engine to frame. Nothing else. Can someone post pictures from where they have their ground connected to??? PLease.

Thank You,
Ernesto
 
kevin400ex said:
just put a ground strap from the engin to the body and your good
Click to expand...

X2 you need to ground the body to the engine also. Espically if you are fuel injected. Usually there is a ground wire that goes from an engine bolt to the firewall.
Also the big thick ground wire from battery should be grounded to the engine block not the frame. A smaller wire should go from engine to frame.
 
blazindorito said:
I need to make sure all of my ground contacts are correct. I currently have battery to frame and engine to frame. Nothing else. Can someone post pictures from where they have their ground connected to??? PLease.

Thank You,
Ernesto
Click to expand...
Right front cyl. head to battery(ground).
 
There should be a ground cable from battery to block and there is also a small guage wire attached at the battery termination end of the same cable that goes to the radiator support. You should also a have ground strap from the engine to firewall.
 
What gauge wire should I use for grounding from Cylinder head to frame? Also from engine to firewall?
Click to expand...

No cylinder head to frame needed.

1) Battery to block/head = 4ga or larger battery cable

2) Head to Firewall = woven ground strap
groundstrapkit.jpg


3) Battery to rad support = 14ga or larger

Make sure all contact surfaces are clean via wirebrush or a very quick zap with a grinder wheel or dremel. I also like to spray the attach points with grease.
 
From engine to frame is usually a ground strap (i.e. copper braid) connected at the rear of the engine, going to the firewall. You can find these straps in the "HELP" section of local parts stores.

Here's a pic of the strap (see the red arrow):

2f4c8280.jpg




The battery-body connection is usually integrated with the B- cable. If you look in parts stores you can see some battery cables are available with this smaller with coming off of it. It should tie to a bolt at the top of the radiator support, near the battery. That smaller wire is probably 14-16 gauge.

So there isn't really a "Cylinder head to frame" ground, except for at the battery post.
 
I just ran one 4 gauge from the batter to the frame and from that some contact on the frame ran one up to the radiator support and one to the engine block. all right there in the same area below the battery.
 
any reason to use a ground strap instead of a large battery cable?
 
Ground straps have the proper termination on them, battery cables are harder to find with eyelets on each end small enough for the proper size bolt, other than that no reason a battery cable can't be used.
 
4X4HIGH said:
Ground straps have the proper termination on them, battery cables are harder to find with eyelets on each end small enough for the proper size bolt, other than that no reason a battery cable can't be used.
Click to expand...

Sweet. I just did dedicated block/frame and frame/body grounds again with some lawn and garden battery cables from walmart. Like $8 for a 6' 4ga cable, and 2 lugs so i could cut it into 2
 
dhcomp said:
Sweet. I just did dedicated block/frame and frame/body grounds again with some lawn and garden battery cables from walmart. Like $8 for a 6' 4ga cable, and 2 lugs so i could cut it into 2
Click to expand...
i used a battery cable Darren and its fine.whats NOT fine is if i put them where they are supposed to be JR won't start.:eek1: i have battery to frame and block to right front fender hood bolt!!!!and it was fine till said fender was sorta drug across a tree.;) now the guages don't work.:dunno: the wireing mystery deepens.:haha::haha:
 
dhcomp said:
any reason to use a ground strap instead of a large battery cable?
Click to expand...

A braid has lower inductance (i.e. less ignition noise in your radio) for the same amount of copper and will flex better than battery cable - meaning longer life.


Sorry if nobody thought the picture was relevant. I didn't even dig one up with the valve covers, distributor or cold air intake installed.:dunno:
 
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