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AC dryer / receiver replacement need info

JerseyCruiser on Tue September 11, 2007 2:25 AM User is offline

Year: 1993
Make: Toyota
Model: Land Cruiser
Engine Size: 4.5 L
Refrigerant Type: R134a

This past weekend I retrofitted my old R12 system to R134a. I flushed all the lines, condenser and evaporator. Replaced all the o-rings, expansion valve, and dryer. In addition I flushed the compressor with new Ester oil and then added the proper amount. All this was done this past Sunday and I won't have it evacuated until Wednesday three days later have I ruined my dryer and contaminated my new oil with moisture by not having it evacuated immediately or will the vacuum pump recover any moisture in the system?

Thanks
George

Edited: Tue September 11, 2007 at 7:47 AM by JerseyCruiser

Chick on Tue September 11, 2007 7:48 AM User is offlineView users profile

I would take a chance as long as the system is sealed up tight, and it isn't exposed to atmosphere to long, ..Half the time you don't know how long the drier/accumulators have been sitting on the shelf, and unless you get a whoosh when you uncap it, chances are it's been open to atmosphere already.. If it's R12 and R134a compatable, just pull a deep vacuum and recharge.. Once the disicant absorbs moisture, the chemical change will prevent it fom being removed by vacuum...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

JerseyCruiser on Tue September 11, 2007 10:09 AM User is offline

The system has been closed tightly since I installed the dryer on Sunday. I need to add some more oil to the system is it ok to open one port on the dryer or would this be exposing to much moisture to it? I would think that having it in a closed system with ambient pressure and moisture would be the same as pulling the cap off and leaving it on my kitchen table for three days or is the unit only going to capture just that small amount in the system? I'm just worried that leaving it in that state rendered the dryer totally useless , I did so much work getting the whole system up and working I don't want a catastrophic failure and have to do everything all over again.

Edited: Tue September 11, 2007 at 10:14 AM by JerseyCruiser

Chick on Tue September 11, 2007 5:03 PM User is offlineView users profile

As I said, I'd use it..Better than using a "soaked" drier...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

JerseyCruiser on Wed September 12, 2007 12:06 AM User is offline

Will do. Going to the shop tomorrow. Thanks again

chris142 on Wed September 12, 2007 12:39 AM User is offline

Instead of opening it up to add oil tell the guy at the shop to put some in with the machine.

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