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Compressor idle over a year - do anything special?

LH123 on Wed April 30, 2008 7:33 PM User is offline

Year: 96
Make: Ford
Model: Explorer

Well the compressor was sitting fallow for quite a long time. Should it be removed and reoiled before startup? Or just leave alone. Thanks.

brickmason on Wed April 30, 2008 10:41 PM User is offline

The shaft seal on most compressors will dry out due to non usage much like an automatic transmission front shaft seal on an older rear wheel driven type automobile. Sometimes a year is all it takes to cause it to dry out and leak.

This is the reason most vehicles defrost mode will engage the compressor even in the wintertime. Is the system fully charged now? If not then remove the compressor and stand it up on its end with the clutch and pulley facing downward to let the seal soak in its own oil.

Even new compressors are suppose to be done this way before installation or it could possibly leak out a full charge of refrigerant.

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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

LH123 on Thu May 01, 2008 8:29 AM User is offline

Quote
Originally posted by: brickmason
The shaft seal on most compressors will dry out due to non usage much like an automatic transmission front shaft seal on an older rear wheel driven type automobile. Sometimes a year is all it takes to cause it to dry out and leak.



This is the reason most vehicles defrost mode will engage the compressor even in the wintertime. Is the system fully charged now? If not then remove the compressor and stand it up on its end with the clutch and pulley facing downward to let the seal soak in its own oil.



Even new compressors are suppose to be done this way before installation or it could possibly leak out a full charge of refrigerant.


It was empty for possibly 1.5 years. Now the leaky part is getting repaired. I kinda thought so that that should be done. Also, I'll get to put fresh oil in the compressor too.

Chick on Thu May 01, 2008 3:22 PM User is offlineView users profile

If you're not flushing the system, add back about two ounces of oil, I strongly recommend replacing the accumulator if it's been empty that long. Add back another ounce or ounce and a half on top of the amount I gave if you change it..Don't over fill it with oil, it's not consumed and you're only replacing what may have been lost thru a leak.. hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

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