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New compressor + undercoating = noise :(

Icarus on Fri June 27, 2008 5:31 AM User is offline

Year: 1994
Make: Lincoln
Model: Mark VIII
Engine Size: 4.6L
Refrigerant Type: R134A
Country of Origin: Canada

I was wondering if anyone had any suggestions on how to correct a problem I'm having.

Last year I replaced alot of my AC system (new compressor, accum/drier, a few lines, etc) and it was working great till I got the car undercoated.
Link to original thread

They oiled the car down really bad and I'm pretty well positive that is what's making the noise from the compressor if it's been sitting for more than a few hours - 1/2 day. I makes a squelch type noise (like a slipping belt almost) just at cold start up and is silent after that with the comp cycling till I shut it off and it sits again.
I also removed the old belt completely and degreased & scrubbed the front cover, ac compressor, and pulleys very well. I replaced the idler and tensioner with new parts too. I cleaned/scrubbed 3-4 times, dried it with my air comp and put the brand new belt, etc on, so I don't think it's belt slip. The noise is far quieter now, and doesn't always do it, but it still will once in a while.

Should I take the clutch pulley right off the compressor and clean it better or is there anything else anyone can suggest?

Thanks for the help all



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·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
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Edited: Thu September 25, 2008 at 4:28 AM by Icarus

brickmason on Fri June 27, 2008 7:24 AM User is offline

Sounds like the old classic Lincoln belt slippage.

Try this Home Remedy especially if you don't have anything else. Bar soap ( The kind you take a bath with) works very good for squeaky belts, just be careful and don't get your hand in the way and crushed by a pulley.

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Just another brick in the wall

Had a little mule I fed him castor oil and every time he jumped the fence he fertilized the soil

Icarus on Mon June 30, 2008 5:02 AM User is offline

It's not belt slippage as I mentioned in my first post. I'd be able to get it to squeal by giving it blips of the throttle if that was the case (and partly was to begin with, hence why I replaced the pullies and degreased/scrubbed everything.)


-------------------------
·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
-------------------------

Edited: Mon June 30, 2008 at 5:06 AM by Icarus

TRB on Mon June 30, 2008 10:29 PM User is offlineView users profile

May try some of the fast drying degrease with a spray tube. Shoot it directing in between the hub and pulley face. Blow it out with some air and see what happens. Other wise pull the hub and clean it with a fast drying degrease. Try and check it away form the seals if possible.

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When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

Icarus on Tue July 01, 2008 4:44 AM User is offline

How hard is the hub to get off the FS-10? Is it only the bolt holding it on? Will I need to worry about screwing up the seal or anything?
Sorry about all the questions!
Thanks

-------------------------
·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
-------------------------

Edited: Tue July 01, 2008 at 4:47 AM by Icarus

Icarus on Sat July 12, 2008 4:20 AM User is offline

Anymore ideas anyone?
Thanks again


-------------------------
·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
-------------------------

Icarus on Thu September 25, 2008 4:38 AM User is offline

I finally got brave enough to pull the pulley off.
I undid the bolt on the nose and slid the clutch off, then took the snap ring off and slid off the pulley. I cleaned it all up real good and also put a very slightly smaller shim in as the air gap was at the max allowed (0.85mm). It's supposed to be between 0.35-0.85mm/0.014-0.033"
I could only find one washer in my whole garage that would work and now the air gap is 0.79mm...
Put it all back together and it working much better now! It clicks now like it should I'd still like to get the gap a little bit smaller, but don't have any washers that will work, but it's within the limits so I may not worry about it...
Thanks to everyone that helped

-------------------------
·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
-------------------------

Chick on Thu September 25, 2008 7:21 AM User is offlineView users profile

You can go to any dealer and buy the "compressor shim" kit..They come in sets of three I believe, been a long time since I bought them, but try to get the gap to around .02. The kit comes with a very thin one..Did you try to put it back together leaving the shim out" It may have worn to the point that a shim is't even needed anymore... hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Icarus on Fri September 26, 2008 6:18 AM User is offline

I'll see what I can find. I didn't think of trying it without the shim. The compressor was brand new (not a reman), so I'm surprised the gap is so large after only this short time...


-------------------------
·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
-------------------------

Chick on Fri September 26, 2008 6:54 AM User is offlineView users profile

You can leave the shim out "ONLY" if your gap isn't under .02 without it.. Otherwise you will need a shim, if the dealer doesn't have them, try a local boneyard, some will let you remove the clutch drives on cores to get a shim.. I know I save everyone from scrap cars coming thru our shop..Hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

TRB on Fri September 26, 2008 10:26 AM User is offlineView users profile

Bicycle (Mountain) shops will have thin spacers for mounting Hope disk brakes among other models. These spacer/shims are the same type that go in compressors. This will need to be your high in shops, Wal-Mat is not going to have these shims.


One online source

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

tony1963 on Sat September 27, 2008 8:40 AM User is offline

Although it may sound simple, I have seen the serpentine belt routed incorrectly before causing belt slippage. Take a hard look at the serpentine belt diagram and make sure that yours is mounted accordingly.

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Grove Automotive Group, Inc.

An Alabama Corporation

Icarus on Sat September 27, 2008 7:04 PM User is offline

I need to pick up a better gauge tool too, mine broke the other day when I checked this. I'll check out some places around for spacers (like the shop I got all the parts from etc.)
The belt is routed correctly. Even with the gap a bit smaller now, the difference is great. It doesn't make noise like it did at all so far.


-------------------------
·Ï¢årµ§·

1994 Lincoln Mark VIII
4.6L DOHC; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; 20" Giovanna Dalars...

...always fying too close to the sun!
-------------------------

Edited: Sat September 27, 2008 at 7:05 PM by Icarus

Chick on Sat September 27, 2008 7:06 PM User is offlineView users profile

you can use a business card, should fit snugly all around the gap...Hope this helps..

-------------------------
Chick
Email: Chick

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Freedoms just another word for nothing left to lose

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