Battery to engine ground

[Dannyboy71]

Is there any one spot on the engine block that is best to connect the ground from the battery? I was thinking either engine mount bolt or stater bolt? Does it matter

 

[Toddpole]

There is a threaded boss at the front passenger corner of the block for that purpose. Look down about the level of the fuel pump but on the passenger side.

 

[SteveL]

Grind the paint off the block for a better connection.

 

[NYLES]

Weld a grounding tab on top of frame for big grounds like batt to frame, eng to frame, winch to frame...angle iron with a whole in it!

 

[Steve83]

You didn't say which engine you're talking about. %)

But if you mean a smallblock V8, there are actually 2 ground bosses on the block:



Always clean EVERY electrical connection surface, and apply a thin film of electrical grease to keep it clean longer.

. .

It's not necessary to weld anything to the frame to ground it properly - there are already some single-walled gussets behind the engine crossmember if that's how you want to attach your ground cable. But on Frank's '75, I just used a later green self-threading ground stud in the outer surface of the frame rail near the front of the passenger wheelwell so it's easy to access/check/clean, and close to the front if a winch was ever added. Some eB frames already have holes there.

 

[Pa PITT]

.. I had all sorts of ground issues on my 1980 Bronco .. So I put about 4 different ground cables on my Bronco ..
.. They all helped a slight bit.
... So I have one from the Alt. down to the grinded frame. & One from the Starter Mounting bolt to the frame .
... & Another from the Hood to the fenders . & then the original one. & I used a grinder on it.
.... Don't forget to clean any of your Head light grounds of parking light grounds ..

 

[Steve83]

You could eliminate all "grounding" problems by NOT using the frame or body for electrical power. Run real Copper wire (in the appropriate size) continuously from the battery (-) to each electrical load on the truck. You should still ground the body & frame, but don't RELY on them. Just like if you had a fiberglass body.

 

[sykanr0ng]

You could eliminate all "grounding" problems by NOT using the frame or body for electrical power. Run real Copper wire (in the appropriate size) continuously from the battery (-) to each electrical load on the truck. You should still ground the body & frame, but don't RELY on them. Just like if you had a fiberglass body.

Use something like this:

http://www.americanautowire.com/shop/grounding-kit-full-vehicle

Or make your own, it wouldn't be too hard to copy the idea.