So behind me I have a 1995 military Humvee, and I'm replacing the glow plugs in the
engine. But I think I got a bad set of glow plugs...I'm trying to trouble shoot
the engine because it's not starting, it'll just turn over, and over, and over. Anyway,
one of the solutions that I've heard of is adding a supplemental or accessory grounding harness
that attaches from the engine to the starter and a few other places inside the engine bay
to help the electrical system run smoothly. Anyway, so what I'm going to do right now
is install that because it's super cheap and if it solves a problem, it solves a problem.
And I'll show you how I do it. I think we should see how it goes. Let's get started.
[Intro]
So this is the harness itself. I got it from Kascar. This is a little diagram of
where all of the extensions go. And so this is the main one that goes onto the engine itself.
And then each of these little arms are labeled. We can see a “B” on that one. And so that goes
to the alternator. We have the body ground protective control box, and the starter ground.
So inside the motor I'm just going to take this off right here,
and we can see some other grounding cables also going from the same bolt.
Basically this just makes the whole grounding system work better and uniformly.
Because a lot of times there's rust on these bolts which makes the grounding connections bad.
So adding the extra harness in there should make everything work better.
All right, got it in. I'm just going to leave the bolt loose for right now
because I honestly don't know how these are all going to route throughout the engine.
So I till tighten everything up when I am done. So next I'm going to the control box
which means we have cord number c. And by number c...you know what I'm talking about. Anyway,
the control box is up underneath here, but the grounding screws are right here.
So I'm going to use that screw and then pull it through the engine compartment here.
Then the one long cable I'm going to get ready to drop down for the starter motor.
Took out that bolt right there, and I'm going to just kind of clean it off a little bit.
Get a better connection. No dust or dirt or anything underneath the bolt. Then we have the
alternator, which is going to be the “b”...number “b”. And then there are two cables: the red
one and the black one. We're going to go to the ground on the black. And it is a half inch socket.
Now that is attached, and going back to our previous connection,
and then we have that one also attached here. And then the last one, this little dangly guy,
is going right up inside of there where there's some other grounding
wires attached to the frame...I think underneath this silver thing.
Okay, that one was tough because that plastic thing kept getting in the way. But I did get some
sandpaper up in there and kind of clean off the connection, and our new wire is now connected with
the other ground on the frame. Now that I have those three connected, I can drop the long one
down that hole for the starter motor. So down here, obviously, we have the passenger tire,
and then we have the starter motor. We can see the positive is the red one right here,
and then the negative is the black. But the army, or whoever had this, put a bunch of silicone junk
all over it. So I'm going to have to razor that off and then add my supplemental grounding harness
while making sure that it stays away from anything hot like these exhaust pipes.
And I cleaned it up a little bit, made sure it was metal on metal for all of the large connection,
the supplemental grounding, and then this other cable that was attached to it as well.
And then I will clean up my wires up top, and that should be good to go.
And there you have it. The supplemental grounding harness is installed. I still
have to wait for my second set of glow plugs. And I think I'm changing out my
controller as well. But it's good to have all the electronics grounded and working
correctly before I get those other components in. Anyway, thanks a ton for watching. Leave any
questions or comments down in the comments below. And hopefully we can get this thing
running in a couple more days. Thanks a ton for watching. I'll see you around.