More electric problems.

[Matt Kahle]

Okay I started working on the m1009 recently. I have quite a few electrical problems especially with the charging system again. For now I'm going to ask about this ground wire I found on the terminal boards. From what I have seen on the alternator wire diagram it's a "suppressor". I was cleaning the wire ends on the terminals and I found the crossing wire from pos to neg that was melted. I wanted to just make a new one, but it seems under all the electrical tape I found some orange little tap. My thoughts were maybe its a good idea I ask before replacing it with something that won't work. So could some one tell me what this "suppressor" is?

 

[doghead]

You do not need it, leave it off(do not replace it with anything).

A suppressor is an electronic noise controlling device used when you have sensitive electronic communications equipment(on or near the vehicle).

 

[Matt Kahle]

What was it for? It doesn't make any sense to me why they would ground the positive board.

 

[doghead]

It's simply a capacitor.(filter)

As installed, it's a load(same as a lightbulb), and must have one side connected to ground to function.

 

[Matt Kahle]

I see okay. Here's another question about the gen lights. What makes them come on during start then after your started up they shut off? I use to have them both working a few years ago, but now gen two doesn't even light up and gen one stays lite the whole time the truck is running.

 

[doghead]

They are controlled by the voltage regulator(internal part of the alternator).

Have you rebuilt your alternators ever?

 

[MarcusOReallyus]

What was it for? It doesn't make any sense to me why they would ground the positive board.

It's not grounded. A capacitor blocks direct current, but passes alternating current. If you have any AC induced into your system from the alternator (which produces AC), that capacitor will ground the AC (to get rid of it) and block the DC.

If you ever get a nasty alternator whine in your radio, connecting a capacitor from ground to the radio hot lead is a standard way to solve the problem. The Army did it with the CUCV to keep alternator whine out of the vehicles communications.

 

[Matt Kahle]

I don't have a radio in the truck at the moment but, I will add one someday then I will fix that ground. As for the altnators I rebuilt them a few years ago but, screwed up gen2 I replaced the voltage regulator 2 times (one with a new one and the seconded time with the old one)

 

[Matt Kahle]

Another thing I would like to replace it the fusible links. Is there any recommended company's for them?

 

[dependable]

Why do you want to replace them? Try not to fix anything that is not broken.

 

[Matt Kahle]

I believe I melted some of them I see were the wiring is burnt before the fuses.

 

[Warthog]

Read the Fusible Link -101 thread.

 

[MarcusOReallyus]

I don't have a radio in the truck at the moment but, I will add one someday then I will fix that ground.

It's not a ground. Put a ground wire there and you'll have smoke. It needs to be a capacitor, and it needs to be connected correctly.

If you have a problem on a music radio, best place for a cap is right at the radio.

As for that part, as doghead said, just delete it. Not really needed.

 

[Matt Kahle]

Yeah I will just put a band pass filter on the radio.
Ah I did something cool today I just added the passenger side radio rack.

Getting pass radio stuff, and back to electronic parts.
I have been shopping on aspwholesale for alternator parts.
I was looking at all the voltage regulators which one do I need?
The resistor is that 40 ohms?

As for the gen 2 relay how would I know if it's shot.
What signs would I see if it were.

The gen 2 diode how can I tell if that's shot?
If I can tell what is the part number for that?


http://www.aspwholesale.com/index.php?page=3&act=viewCat&searchStr=+Delco+27SI&Submit=Go

 

[dependable]

You could just buy the re build kit from them. But if you know you have a 27SI type 100, you should be able to find the parts. Most of the regulators on the page you linked are for type 200, so, you probably want the D101HD.

Test diodes with continuity tester on multimeter. Should only pass current one way.

 

[Matt Kahle]

Ah okay how would I tell if I had the 100 or 200?

 

[Matt Kahle]

Okay I pulled out the voltage regular and it's a D101HD-1. Dose that we extra one mean any thing?

 

[Warthog]

No

 

[Matt Kahle]

Okay cool I'm going to order my parts then.

 

[Dieselnatalie]

I have to have a giggle at the mention of suppressors; back in the 'days of the magic wood' with old cars and motorbikes, you would see curtains being pulled back and fists shaken when some badly suppressed splutterbug passed down a street,
ruining radio reception with fizzes and crackles, and filling telly screens with snow and radar-like lines.