Oh by the way it a 1991 with the serpentine belt

 

If the 1991 is the same set up as the early 6.5L :confuzeld, you can try this.

I used a Dorman #34152 A/C Delete on my 1994.

Here it is installed:

You have to fabricate a brace out of steel to support the upper right (looking from the front) mount. The brace has a gentle "S" shape to it. And one of the holes in the Dorman part has to be reamed out to accept the factory A/C compressor bolts.

Hope this helps.

 

:welcome:

If the clutch will still turn, just unplug it.

 

That's what I would do. unless it is seized, then idk.

 

1000 bucks for a pump?! That's a little crazy! It's under 200 for the pump and another 100 at a shop to have the system evac'd and charged. So if you have it all, why not fix it... Plus like 15 bucks for a new drier as a side note.

PS. We just did this with out 94 and it was worth doing and easy to do.

 

Agreed. A compressor is about 200 bucks. Even if the OP doesn't feel like spending the money now, might as well just leave things well enough alone as long as the AC compressor spins. Then fix it down the road when you feel like spending the money. Bypass or no bypass, either way you don't have AC. Might as well do nothing and not have AC versus spending time and trouble to still have no AC.

 

Yep unplug it. As long as its quiet it should be fine. I have had em where the bearing goes bad so it makes noise and shoots out metal chunks so then you have to think about doing something.

Not sure why the bypass is not listed. Same problem for the 92-95 6.5's that used the same compressor. It was the same compressor as the gas engines used so I don't get why they don't list the bypass for ours.

Its Doorman 34152. Rock Auto has em for just over $20. Before I did mine I had read that one of the holes has to be enlarged and I did not have the truck near my tools to do a test fit so I just assumed I needed to enlarge a hole so I just guessed and did it. One hole is like 5/16 and the other is 1/2. It looked to me like the bolts are 5/16 so they made the other hole 1/2 to give you some extra room. I drilled the small out out to 1/2 and there seemed to be plenty of slop in em. I wonder if perhaps earlier versions of that bracket were both 5/16 and the one I got was a later one where they already enlarged one hole?

 

Thanks! I would up buying and installing the Dorman pulley and fabricating a bracket, worked great. I simply left all the AC components hooked up and I pulled them back, out of the way and strapped them to the air intake boot bracket on the fender well. That way when I am ready to fix the AC, everythign is still there and ready to be replaced....

 

Glad the Dorman part worked for you :thumb:

 

Interesting. It didn't seem to me that a hole had to me enlarged and it seems plenty stiff without and extra brace. Were the holes different sizes on yours? Wondering if perhaps the originally had both the same size but at some point changed and made one larger from the factory?