Ecomike
NAXJA# 2091
- Location
- MilkyWay Galaxy
All you need is the $9 bearing, and rental tool.
Loud sound from AC?
- Thread starter spinaldex
- Start date
I read here on the forums that the 97-01 clutch's bearing is integrated in the unit or something and you can't pull it out. I read somewhere else that its spiked in and you have to force it out and then if you place the other one in it'll move free so they had to spike it back in.
The puller tool, that's just for pulling the bearing out right?
The puller tool, that's just for pulling the bearing out right?
Ecomike
NAXJA# 2091
- Location
- MilkyWay Galaxy
Been about 4 years since I did the last one, so my memory is not real clear. I do recall a snap ring, so you need a snap ring tool too. I think the puller was for the bearing, but there are several puller types, and I don't recall which one is needed. One of those you tube videos should show it. IIRC there are three screws, then the snap ring, then you pull the bearing, to get it apart. But my memory is a bit foggy.
The Auto AC industry does not talk much about the cheap easy fixes like a $9 bearing.
If the bearing was integrated I doubt they would be selling it on Ebay, but I do not know for sure.
Ok! I'm back.
Got the bearing in the mail today.
Pulled the clutch off the pulley and found the bearing behind it isn't just mildly fried, the thing completely fell apart (see pictures).
So, the problem I have is, how the hell do I get it out of there now? Any suggestions that don't involve Option B (pulling the entire compressor out)?
Got the bearing in the mail today.
Pulled the clutch off the pulley and found the bearing behind it isn't just mildly fried, the thing completely fell apart (see pictures).
So, the problem I have is, how the hell do I get it out of there now? Any suggestions that don't involve Option B (pulling the entire compressor out)?
http://www.sanden.com/originals/images/SD_Service_Guide_Rev.2.pdf
Page 17.
I'm guessing that the general idea is you are suppose to pull the compressor. By using a tool like that you can take out the pulley and then use a large nut or whatever else you have to hammer out the bearing from the other side. The problem is I'm trying to avoid pulling the entire compressor due to the steep costs involved (shop to empty system, time involved to pull the entire thing, shop to charge the system, inevitable shit that breaks when it comes apart, etc). I also think that a puller like that wouldn't fit with the fan right there. So, any "tricks" to getting the pulley or just the bearing out as it sits or do I need to save a few hundred $ to finish up this project?
Page 17.
I'm guessing that the general idea is you are suppose to pull the compressor. By using a tool like that you can take out the pulley and then use a large nut or whatever else you have to hammer out the bearing from the other side. The problem is I'm trying to avoid pulling the entire compressor due to the steep costs involved (shop to empty system, time involved to pull the entire thing, shop to charge the system, inevitable shit that breaks when it comes apart, etc). I also think that a puller like that wouldn't fit with the fan right there. So, any "tricks" to getting the pulley or just the bearing out as it sits or do I need to save a few hundred $ to finish up this project?
I was thinking .. couldn't I remove the 4 bolts from the mechanical fan, yank it out, and then get that extra room so I could possibly use a normal pulley removal tool I could rent from Autozone, and then yank the pulley and get on with it?
I tried googling what it takes to remove the mechanical fan on a Cherokee and couldn't find a write-up so I'm assuming its just that easy?
I tried googling what it takes to remove the mechanical fan on a Cherokee and couldn't find a write-up so I'm assuming its just that easy?
Ecomike
NAXJA# 2091
- Location
- MilkyWay Galaxy
I actually unmounted the compressor itself, but I kept the A/C hoses connected to the compressor. The fan can be removed, but it is a pain to reach all 8 bolts. The clutch must be removed also to get the fan off, and hand clearance is tight.
Only one bolt on the compressor is a pain (but mine are 85-89 jeeps, yours may be different!!!), but I would loosen the serpentine belt and unmount the compressor, keeping the hoses attached myself.
That bearing is a mess. Hope it stays together while pulling it. If it desintigrates lets hope the outer clutch assy parts come off so you can cut the inner bearing remains off with a cutting wheel.
Only one bolt on the compressor is a pain (but mine are 85-89 jeeps, yours may be different!!!), but I would loosen the serpentine belt and unmount the compressor, keeping the hoses attached myself.
That bearing is a mess. Hope it stays together while pulling it. If it desintigrates lets hope the outer clutch assy parts come off so you can cut the inner bearing remains off with a cutting wheel.
Ok, so since I wrote that last post I went outside and pried around the outside of the pulley a little and it actually came off pretty easy. The bearing inside, the second it came off the shaft, fell completely apart and as you mentioned, the outside race (?) of the bearing is still in there. I tried hammering out the little metal tabs with a chisel, and then used a ball joint press and found a perfect matching cup to the bearing, pressed it like crazy and it wont budge even a mm. I took pictures, etc to see if someone had more advice and it looks like you were already on it.
So, I don't have any smaller cutting wheels for my grinder, just the standard size ... so I guess I'll swing by harbor freight to see if they sell smaller diameter ones?
One other question, right behind the pulley is a thick disk that looks like it has copper wire spin inside it. It almost looks like there's a paper cover that goes over it, but the paper is starting to fall apart. Is that the magnetic clutch that I keep seeing people mention? Does the paper cover have any correlation to the function of the system or could that indicate that its falling apart in some way? The reason I ask is at this point I'm at a crossroads. I could:
A. Cut the bearing out and put in the new one. Put the whole thing back and together and drive it.
B. Junkyard a Sanden compressor and swap the magnetic clutch and pulley w/ bearng.
C. Same as B but try to remove the bearing from it and replace it with the new one.
So, I don't have any smaller cutting wheels for my grinder, just the standard size ... so I guess I'll swing by harbor freight to see if they sell smaller diameter ones?
One other question, right behind the pulley is a thick disk that looks like it has copper wire spin inside it. It almost looks like there's a paper cover that goes over it, but the paper is starting to fall apart. Is that the magnetic clutch that I keep seeing people mention? Does the paper cover have any correlation to the function of the system or could that indicate that its falling apart in some way? The reason I ask is at this point I'm at a crossroads. I could:
A. Cut the bearing out and put in the new one. Put the whole thing back and together and drive it.
B. Junkyard a Sanden compressor and swap the magnetic clutch and pulley w/ bearng.
C. Same as B but try to remove the bearing from it and replace it with the new one.
Ecomike
NAXJA# 2091
- Location
- MilkyWay Galaxy
Did you try pressing from the other side? Maybe it is tapered? Penlube soak it some?
If that does not work, they sell a small dremel like tool, and have some cutting wheels, cheap sand disks, and diamond covered metal cutting wheels. All real low cost, and great for that job.
If that does not work, they sell a small dremel like tool, and have some cutting wheels, cheap sand disks, and diamond covered metal cutting wheels. All real low cost, and great for that job.
Weird. My post didn't come through. Didn't work. The bearing looks like it literally welded itself to it. I grinded the crap out of it with a Dremel, tried cutting it off by making deep grooves across it, hammered it with just about everything, chisel, sockets, etc. No dice. I think I drove it so far past the bearing going out that it heated up and melted together a little. Oh well. I'm going to have to pick up another AC and swap across the pulley & bearing. Doh!
The cheapest compressors locally were $100 w/ no return. I found one for a '99 on eBay that warranties it and is shipping it priority mail for $77. It should be in tomorrow and I'm just going to swap the pulley & clutch across from that one and be good to go. I'm going to swing by Harbor Freight and see if they have any of their $20 pulley tools in stock since they look like they would work? Has anyone used them for this?
Thanks.
Thanks.
So I finally got a used AC, and swapped the pulley and clutch from it on to my compressor. Compressor and everything works now. Only problem I notice is that when the clutch engages it makes a loud click. I think it always audibly make a click sound, but its pretty loud now. Since the clutch engages and disengages every few seconds, it happens a lot and so I'm just not using the AC at the moment. Any chance this is an issue with the gap and needs a different shim/spacer, or multiple ones, or is this clicking indicative of something else being wrong?
Ecomike
NAXJA# 2091
- Location
- MilkyWay Galaxy
It should not be cycling a lot. It may be low on refrigerant? Not sure about the click sound level issue.
