air conditioner pully
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Junior User
Joined: Dec 2009
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From: lakeville, mn
air conditioner pully
On my drive to church today heard crickets chirping under my hood turns out to air conditioner pully anybody have or know of any write ups on changing thanks
Elder User
Joined: Jul 2008
Posts: 569
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From: Buckenderra
i might have had the same noise, i went over everything with a stethescope and thought it was coming from my A/C pulley because when i turned the A/C on the noise went away. which told me the front bearing was on its way out, so replaced that but it was still there it turned out to be the belt tensioner rattling at idle but when the A/C was engaged it gave enough load on the belt to stop it. the new belt i had put on must be ever so slightly longer than the old one, which in turn just didnt load the tensioner fully so as a fix i got 4 heavy duty about 4-5mm washers and lifted the altinator, now has enough load on the belt and is fine.
but to check your bearing on the A/C when disingaged it runs on the bearing under the pully, when engaged and the pump is turning it nolonger runs on this bearing so should be quiet. if it is that then to replace there is a bolt in the middle of the pully, undo this and if you get a good one like mine a few hits with a mallet and the pulley will slide off, if not a puller will be needed or some pry bars either side of the pully to jemmy it off. then press out the bearing bang a new one in and job done.
hope this helps
cheers mate
josh
but to check your bearing on the A/C when disingaged it runs on the bearing under the pully, when engaged and the pump is turning it nolonger runs on this bearing so should be quiet. if it is that then to replace there is a bolt in the middle of the pully, undo this and if you get a good one like mine a few hits with a mallet and the pulley will slide off, if not a puller will be needed or some pry bars either side of the pully to jemmy it off. then press out the bearing bang a new one in and job done.
hope this helps
cheers mate
josh
Hotshot
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
If it's the bearing, you will hear it both with, and without, the compressor engaged. It is active all the time, the way these are designed.
If it's really the bearing in the clutch pack, replacing the clutch is the best way to get a new bearing, though you COULD replace just the bearing itself if you can find one. The bearings ARE available at some parts houses.
If you want to give yourself a little working room, drain some coolant and take off the de-gas bottle. The job can be done without doing that, however.
Of course, first remove the serpentine belt.
Start by reading a write-up I did here:
SpringerPop's Compressor Clutch Air Gap
Then, read this whole thread:
https://www.ford-trucks.com/forums/1...ey-squeak.html
and this:
https://www.ford-trucks.com/forums/9...ml#post8676261 (It's referenced in the first link)
Those will give you some background before jumping in.
After the clutch plate is off, you will find a snap ring on the compressor snout that retains the clutch and bearing. After cleaning everything around the snout and snap ring, take the ring off and the clutch will them pull directly off the snout. It may take a small amount of "enticing" to get it to come off (maybe even a puller, but probably not) but it WILL slide straight forward.
When you buy a new clutch, you will also get the coil. There is presently no reason to replace it, so leave the old one in place.
Everything goes back together in the reverse. Be SURE that snap ring is fully seated in it's groove.
Refer back to the write-up above, and set your air gap properly.
Put the belt back on and test per the instructions. Tweak as necessary.
Pop
If it's really the bearing in the clutch pack, replacing the clutch is the best way to get a new bearing, though you COULD replace just the bearing itself if you can find one. The bearings ARE available at some parts houses.
If you want to give yourself a little working room, drain some coolant and take off the de-gas bottle. The job can be done without doing that, however.
Of course, first remove the serpentine belt.
Start by reading a write-up I did here:
SpringerPop's Compressor Clutch Air Gap
Then, read this whole thread:
https://www.ford-trucks.com/forums/1...ey-squeak.html
and this:
https://www.ford-trucks.com/forums/9...ml#post8676261 (It's referenced in the first link)
Those will give you some background before jumping in.
After the clutch plate is off, you will find a snap ring on the compressor snout that retains the clutch and bearing. After cleaning everything around the snout and snap ring, take the ring off and the clutch will them pull directly off the snout. It may take a small amount of "enticing" to get it to come off (maybe even a puller, but probably not) but it WILL slide straight forward.
When you buy a new clutch, you will also get the coil. There is presently no reason to replace it, so leave the old one in place.
Everything goes back together in the reverse. Be SURE that snap ring is fully seated in it's groove.
Refer back to the write-up above, and set your air gap properly.
Put the belt back on and test per the instructions. Tweak as necessary.
Pop
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