Urgent Matter

[jose]

I took my car for a ride after replaced the sway bar drop links and everything was fine until I note that the RPM's was slowing down after each red light in downtown, after few red lights the car sudden drop in RPM's stall the engine twice then I turn off the air conditioning and the RPM's improve in a way that doesn't matter much. I took the car home for a check up and let car run in the garage, everything was fine except the a strong plastic burned odor form the engine compartment, couldn't see anything except plastic residues in the engine lid, I immediately thought that something was making friction the pulley so I decide to remove Air Filter off and found this. :huh: . Something is melt in this part here label 996.126.011.51. Need your advice guys.

[logray]

Back side of the airbox melted?

Serpentine belt?

[jose]

air box is fine

serpentine belt is fine

Thanks

Edited September 29, 2011 by jose

[Loren]

Are you sure that is not grease from the AC compressor clutch?

[logray]

Possibly something got caught in the A/C pulley or perhaps something in the a/c pulley.

Does the A/C work? Can you spin the A/C pulley freely by hand with the serpentine belt removed?

[jose]

I think can be, I was using the air conditioning at 76F, didn't noticed if cool air was working.

[jose]

A/C works, I haven't remove the serpentine belt yet and verify that, But it runs when engine in ON.

Possibly something got caught in the A/C pulley or perhaps something in the a/c pulley.

Does the A/C work? Can you spin the A/C pulley freely by hand with the serpentine belt removed?

Edited September 28, 2011 by jose

[jose]

I suspect air compressor clutch

[jose]

well, after searching this website I found this, I think this anticipate what is comming. http://www.renntech.org/forums/topic/12898-help-smoking-ac-pulley/page__p__63455__hl__+compressor%20+clutch__fromsearch__1#entry63455

[jose]

How difficult is to replace this? I have replaced the serpentine belt before myself with no problem.

[Loren]

Removal

1. Use a standard strap wrench to securely hold the pressure plate, and undo the fastening screw.

2. Screw a screw M8 into the thread of the pressure plate until the pressure plate can be removed manually. Remove the spacer washers.

3. Use standard Seeger circlip ring pliers to remove the Seeger circlip ring. Manually remove the belt pulley.

4. Unscrew the cable of the magnetic coil from the compressor housing. Remove the Seeger circlip ring. Remove the magnetic coil from the compressor housing.

Installation

1. Place the magnetic coil on the compressor housing. The locking pin must engage in the locking hole.

2. Install the Seeger circlip ring. The slanted surface (arrow) of the Seeger circlip ring faces upwards (to the fastening screw).

3. Tighten the pressure plate fastening screw.

Tightening torque: 10 ftlb.

Check the air gap of the magnet coupling

1. Check the air gap between the pressure plate and belt pulley with a depth gauge.

2. Place a rule on the outer edge of the belt pulley.Use a depth gauge to measure up to the pressure plate. Apply battery voltage to the magnetic coupling and measure the distance (air gap) to the attracted pressure plate. Always measure at at least three points on the pressure plate in order to obtain a mean value. Distance: 0.5 mm +- 0.15 mm

3. If the air gap is not in the tolerance range, it must be adjusted with the aid of the spacer washers.

[jose]

Thanks Loren,

I'll give a try. B)

[wvicary]

It's the brng that is failing and damaged the clutch assembly.

[jose]

Are you confirming that the compressor clutch need to be replaced? sorry, I don't know what is the brng , brng=berings?

Thanks for the help

It's the brng that is failing and damaged the clutch assembly.

Edited September 29, 2011 by jose

[wvicary]

Yes sorry. Brngs=Bearings

[jose]

Thanks,

Where's the best place to find a replacement to all this mess?

Yes sorry. Brngs=Bearings

[jose]

I removed some parts here, take a look, got some doubts if the compressor suffer enough stress to blow seals,pressure lines or not.

What's your opinion guys?

[jose]

What's the chance that the air compressor clutch it self can be damage together with the air compressor? Right now, I can't tell if the air compressor is damage. I'm looking straight to replace only the air compressor clutch.

[RFM]

There is a good change that the compressor starts to hang by excessive internal resistance caused by too much or too little oil, failing AC system, etc. or simple a bad bearing. Let check this it out first.

[jose]

Thanks, Now that you mention oil quantities in the air compressor system, that will be my second step, check the oil.

There is a good change that the compressor starts to hang by excessive internal resistance caused by too much or too little oil, failing AC system, etc. or simple a bad bearing. Let check this it out first.

Edited October 5, 2011 by jose

[jose]

Well, I sucessfully replaced the air compressor clutch, but the air compressor seems not working. Now what? Check the air compressor oil?

Your help will appreciated.

Thanks

[xmac]

When you try to turn the A/C on, does the clutch engage? If it is not engaging when you hit the snowflake button, it may just be low on refrigerant. They are typically designed not to allow the clutch to engage if the refrigerant pressure is low. If that is the case, you need to have it serviced.

[jose]

I'll give a try tomorrrow. Thanks a lot

[jose]

well, not good here, as soon as I put more refrigerant the air compressor start and broke the air compressor clutch again. Definetly this is an entire air compressor replacement plus will need to tow to the mechanic. :huh:

[logray]

Oh no! Well at least you gave it the ol' college effort right?

I remember seeing a service in the UK that would go door to door and suck all the gas out of the system, then you could do whatever repair you needed to and then they would come back, charge the system and test/repair for leaks.