Alternator Rebuild

My alternator is going bad. I'm pretty sure its the bearing that is going bad, because its making a loud groaning and squeak noise. I figured I'd save a few bucks and try my hand at rebuilding it. I've never done this before. I have an '84 M1009 so I'm pretty sure the alternators a stock [FONT=&quot]1105500. W[/FONT]here I can get a rebuild kit or how I go about finding the right parts?

Do a search the part number has been listed 1000 times. A rebuild kit will set you back around 20 bucks. Bearings only are about 7 bucks a set.
27si is the case model number but most gm alternators all have the same guts and bearings.

Welcome to the site.

While this isn't the only place to get a kit I have used them many times and have had good luck with them

http://www.aspwholesale.com/index.php?act=viewProd&productId=5137

When you are removing the rear bearing, make sure you support the case somehow. If not you will crack the case and have a chunk of scrap aluminum.

I am looking at your location listed in your profile. Are you from Columbia the country?

Here a good DR vid which may help in your rebuild:

https://www.youtube.com/watch?v=hYfam5f57Ho

Rebuilding is 100% covered in the TMs.

No. The state of Missouri, which is notorious for stealing names from many other countries for its towns. Thanks for the links guys.

doghead said:

Rebuilding is 100% covered in the TMs.

Click to expand...

In your and Warthog's world, everything about a CUCV to everybody, can be solved by the TM's.

Credit to Hog, he has ripped through everything and is a whiz at highlighting electrical diagrams.

I've learned a lot from him.

You post about it month after month, year after year, incessantly. I could quote pretty much every one of your replys.

I used to be a high school math teacher. There are different approaches that help different learners.

You can't seem to appreciate that. You are not helpful.

Turkey said:

No. The state of Missouri, which is notorious for stealing names from many other countries for its towns. Thanks for the links guys.

Click to expand...

[/mod] The rules, should you have taken the time to read them, state (no pun intended) as follows [/not mod, being helpful]:

• Location: We require that all members include their state in their new member profile. This allows the other members to know their neighbors. Users who refuse to add their location will be subject to warning, temporary ban, and then permanent ban.

Click to expand...

So, nudge, nudge, you may want to throw a MO in there, else folks who really care will not think you are on the yayo.

Regards.

I simply stated a fact. A book is not something to be feared.


It is written in easy sentences and easy steps with pictures(for this particular situation) of the alternator.

I am 100% confident that my 7 year old nephew could follow it and rebuild an alternator.


That makes my statement

Rebuilding is 100% covered in the TMs.

Click to expand...

, very helpful in my opinion.

I don't think you get the fact that I am trying to help.

doghead said:

I don't think you get the fact that I am trying to help.

Click to expand...

I get that, but I doubt very many people get that. It doesn't come across that way at all. It comes across as condescension, like a small person making himself feel big by displaying his superior knowledge, contemptuously dismissing those who don't already know the TMs inside and out.

I fully understand, and fully agree with, the idea of teaching someone to fish, but there's a right way and a wrong way to do it. Yours is the wrong way. If your way were the correct way, there'd be no need for this forum at all. Just post the TMs, tell people to read them, and we're done.

I understand being frustrated with people who want to be spoon fed, who won't do the most basic searches, won't read anything before asking to be led by the hand. I get that.

That doesn't make your approach right, or helpful. In fact, I strongly suspect that you are a large part of the reason that I see comments on other forums about the "jerks over at SS". The reason I suspect that is that when I have seen comments to that effect, it's in the context of people not being helpful, but jsut telling people to read the TMs. Since you are a moderator, you ARE the face of SS to visitors.

Warthog is a good example for you to follow.

Given the small numbers of those that complain, I think I help the majority of those who want help and are not helpless.


In this case, the member is new. Do you think he is familiar with the TMs? Do you know what his mechanical and comprehension abilities are? Do you really know what he needs to fix his issue?

I mearly offered the basics.

Perhaps those that think little of themselves are offended by such simple statements.(my thought)

Let's stay on track here...

Turkey said:

No. The state of Missouri, which is notorious for stealing names from many other countries for its towns. Thanks for the links guys.

Click to expand...

The forum rules do require at a minimum that you list your State of residence. Please update your user profile.

Back to the subject at hand.

The TM 9-2320-289-34 technical manual has a section dedicated to the rebuilding of the alternator. It covers it step-by-step. And it has pictures. It is a very useful tool.

The first CUCV alternator I rebuilt took about an hour as I was taking pictures of each piece I removed. Now I can rebuild one in about 15 minutes.

Use a paper clip to hold the brushes back when putting the half back together.

Rebuilding a GM alternator is not hard, I have done several several of them back when I owned a GM vehicle. The paper clip trick for the brushes is a must to get the case halves back together without damaging the brushes. Carry on...

b4thundr said:

Use a paper clip to hold the brushes back when putting the half back together.

Click to expand...

Just remember to remove the paper clip before connecting the batteries.

Ask me how I know

I'll bet that came back to you in a flash didn't it. Did it destroy your regulator in the casing?

The only alternator I could not repair was one that blew the rotor winding. Bearings are a piece of cake.

FloridaAKM said:

I'll bet that came back to you in a flash didn't it. Did it destroy your regulator in the casing?

Click to expand...

Yes it did, to both questions. Also fried one of the brush wires. It's what happens when it's really cold out and you rush (NOTE: I did not say in a hurry). Thankfully I keep spares on hand and I had the newly toasted internals swapped out and the alternator reinstalled in under 15 minutes.

So I'm currently rebuilding the old alternator at the moment. The TM's mention a resistor on top of the brush holding assembly and voltage regulator. Mine does not appear to have one. Has anyone else had this happen?

Is this the item?
https://www.aspwholesale.com/index.php?act=viewProd&productId=2096