Alternator Pulley Alignment Issue

[AZMike75]

This is pretty frustrating as I mocked all of this up before putting the engine in and I could have swore all of this lined up but evidently it didn't. So my crank and water pump pulleys line up perfectly but my alternator pulley doesn't. It's coming up short of aligning with the first pulley groove in the WP/Crank pulleys. This is a BP 306 with stock alt brackets and a one wire WH alternator. Do they make a spacer for the alt pulley? Do I use different brackets? Any help is greatly appreciated!

 

[DirtDonk]

Well, Ford did use a couple of different length spacers behind the upper mount at the cylinder head, but I believe all EB's used the same one through all the years, so unless you got yours from a different donor engine, that's likely not the issue.
But frankly, your pulley sure looks to be pulled up close to the alternator body. Have you spun it by hand to make sure it's not scraping?

I can't remember if they all have them, but there is a washer (about 1/8-3/16 inch thick maybe) that goes behind the pulley on some alternators. That might be what's missing here.
However, taking that thought further, it doesn't really look like you have that much thread showing outside the nut as it is now.
Any chance you tried the pulley both ways? If not, maybe pull the nut and flip the pulley over to see if that fixes it.

If the pulley can't be spaced out, or a more suitable pulley can't be obtained, then the next step is to space out the upper mount to line things up.
The triangle bracket is somewhat flexible in that regard, and the lower mount can be bent to suit up to a point as well.

Good luck. Sorry about the hassle. Did we supply the pulley as well? I'm assuming yes, so another thought is to give us a call in the morning to see if there are any other pulleys we can compare measurements to. Just to make sure you did not get an oddball.

Paul

 

[Rustytruck]

Maybe use a 2 groove alternator pulley and use the outer groove.

 

[AZMike75]

Well, Ford did use a couple of different length spacers behind the upper mount at the cylinder head, but I believe all EB's used the same one through all the years, so unless you got yours from a different donor engine, that's likely not the issue.
But frankly, your pulley sure looks to be pulled up close to the alternator body. Have you spun it by hand to make sure it's not scraping?

I can't remember if they all have them, but there is a washer (about 1/8-3/16 inch thick maybe) that goes behind the pulley on some alternators. That might be what's missing here.
However, taking that thought further, it doesn't really look like you have that much thread showing outside the nut as it is now.
Any chance you tried the pulley both ways? If not, maybe pull the nut and flip the pulley over to see if that fixes it.

If the pulley can't be spaced out, or a more suitable pulley can't be obtained, then the next step is to space out the upper mount to line things up.
The triangle bracket is somewhat flexible in that regard, and the lower mount can be bent to suit up to a point as well.

Good luck. Sorry about the hassle. Did we supply the pulley as well? I'm assuming yes, so another thought is to give us a call in the morning to see if there are any other pulleys we can compare measurements to. Just to make sure you did not get an oddball.

Paul

Thanks Paul! Yes the alternator came with the pulley. The alternator is WH PN 6013NET VBELT. Upon removing the pulley there was no washer but there is a spacer that's part of the pulley that's just keeping it off the alternator body. Shimming that spacer may do it but I'll reach out to you guys tomorrow to see if what I have is normal or if something is off. Here's a few pics:

 

[AZMike75]

Maybe use a 3 groove pully and use the outer groove.

Good idea- I took a two groove pulley I had and tried- neither line up. Thanks though- I appreciate it!

 

[KeithKinPhx]

Just put a new one on my 68. It was a double pulley but I used the inside one. I also have a spacer between the alternator and the head. Can your alternator rotate down towards the water pump without hitting the head? I'll see if I can find a picture and post it.

 

[KeithKinPhx]

Picture of it on the stand before the water pump pulley was added. I had to pull the shim closest to the head because I was too far forward.

 

[AZMike75]

Picture of it on the stand before the water pump pulley was added. I had to pull the shim closest to the head because I was too far forward.

Thanks Keith! I do have a spacer between the alternator and the head. I took Paul‘s advice last night and shimmed the spacer out a little bit with a small piece of aluminum I had laying around. It seems to line things up much better now. I may need to take a little off of it.

Sent from my iPhone using Tapatalk

 

[DirtDonk]

Looks much better!
Is that one of our new spacers too? How long is it exactly? Maybe we can compare it to others that are known to be original?

And the other pulleys and engine accessories? What are they all from? Is this the original engine and accessory drive to your Bronco? Or is it being swapped in from something else?

Just curious to see if we can narrow down why yours is skewed slightly, while others (most others anyway) come out perfectly fine.

Good luck.

Paul