87 2wd, altenator no A/C

[bryans87MJ]

OK, I think I have the wrong alt in my MJ project. Basically the pulley doesn't seem to line up with the rest of them. I am thinking it is a A/C model. Does anyone have a similar setup that they can get a pic of the alt?

 

I will get a pic of mine tomorrow. Just one more thing I need to work on :wall:

[Geonovast]

Serpentine or V belts?

 

Pics would help a lot.

[Eagle]

We need to know the year. Things changed.

[bryans87MJ]

1987, it's in the title.

 

It is a serp belt and I will get pics today when I get home from work.

[Kenosha Warrior]

Your alt should have a V shiv between the casing and the grooves for the Serp Belt. If not, you've got a 4.0 alt.

 

Its the same general alt for ac, non ac, what makes the difference is the housing IIRC.

[bryans87MJ]

OK so here is a couple pics:

As you can see this one does not have the V notch before the sepr belt grooves on the pulley.

 

This is a 1987, 2.5L, 2wd (technically), manual trans, no A/C Comanche.

 

From everything I have found (not much) it is the wrong one. Comments?

[Wildman]

As you know, there is a difference between the 2.5 and the 4.0 alternators, mounting tabs, and location.

 

From what your pictures show, your pulley is not lining up, of course you know that :roll:

 

So, I 'borrowed' these from Rockauto.com -

 

This one is for a 2.5 w/AC-

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This one is for a 2.5 w/o AC-

 

Not knowing 2.5 as well as 4.0's, I would say you have the wrong pulley on the alternator.

 

Did you buy the alternator new???? If so, return it, and get the alternator for the NON- AC. Cause as others wrote, you missing that "extra" V section that pushes the 6 groove pulley out, in line with the harmonic balancer.

 

 

And Yes, I did cross check them for a '87, 2.5 engine.

[bryans87MJ]

Nope the alt was in the truck when I got it. I saw the same pictures on Rock Auto and that is what I came up with as well.

 

I too don't know nearly as much about the 2.5 as I do the 4.0 since all my other Jeeps have been the 4.0 and this is becoming a learning experience.

 

I will go to Autozone and order a new one tomorrow. If everything works out this MJ up and running by the end of the week.

 

Within two weeks I hope to have the rear axle in and welded up. Then I just need a rear driveline and 4.10 front axle :roll:

[Wildman]

I regret that I was cleaning up the photos last night and deleted alot of junk, but I'm glad you got to see the pictures :roll:

 

So, you inherited this set up, and trying to make it right from the PO :cry:

 

The only other solution is to find the correct pulley and change that out. I might have one 2.5 alternator shelfed some where's but I think your getting the correct alternator and pulley will solve this alinement's problem.

[bryans87MJ]

I'm not gonna worry about it and just buya new one. Local place has it for about $79.