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-   -   Repairing AC (http://986forum.com/forums/performance-technical-chat/52286-repairing-ac.html)

Jamesp 05-22-2014 06:10 PM
Repairing AC
 
It's early summer in Houston and the AC in my Box is marginal. At 85 F ambient the low side is 40 psi and the high side is 225 psi. Add R134A and the low side goes to 50 and the high side goes to 230. I plan to replace the compressor, dryer, and expansion valve. The condensers are cleaned out and the belt is new. Does anyone have the low and high side numbers? Any tips or tricks on getting it running in top shape? Houston is about a mile from the sun in mid summer so marginal AC is not an option.

JFP in PA 05-23-2014 04:28 AM
Quote:
Originally Posted by Jamesp (Post 401601)
It's early summer in Houston and the AC in my Box is marginal. At 85 F ambient the low side is 40 psi and the high side is 225 psi. Add R134A and the low side goes to 50 and the high side goes to 230. I plan to replace the compressor, dryer, and expansion valve. The condensers are cleaned out and the belt is new. Does anyone have the low and high side numbers? Any tips or tricks on getting it running in top shape? Houston is about a mile from the sun in mid summer so marginal AC is not an option.
Both air condition system pressures are dependent upon the ambient temperature. You need to locate the correct table Porsche published for your year and model to determine where you need to be.

Gilles 05-23-2014 10:58 AM
Quote:
Originally Posted by Jamesp (Post 401601)
Houston is about a mile from the sun in mid summer so marginal AC is not an option.
Houston is the largest steam bath in the world... horrendous :eek:

.

Jamesp 05-23-2014 04:47 PM
Quote:
Originally Posted by Gilles (Post 401730)
Houston is the largest steam bath in the world... horrendous :eek:

.
The Mosquitoes don't think so. I saw one happily carrying away a slightly deflated Labrador Retriever just this morning.

Jamesp 05-23-2014 04:50 PM
Quote:
Originally Posted by JFP in PA (Post 401643)
Both air condition system pressures are dependent upon the ambient temperature. You need to locate the correct table Porsche published for your year and model to determine where you need to be.
Yes, that was is what I'm looking for. Any idea where they can be found? And yes, I did search the forum.

JFP in PA 05-23-2014 05:29 PM
Quote:
Originally Posted by Jamesp (Post 401807)
Yes, that was is what I'm looking for. Any idea where they can be found? And yes, I did search the forum.
The only palace that I know it exists in in the factory service manuals.

Jamesp 05-23-2014 05:35 PM
Quote:
Originally Posted by JFP in PA (Post 401809)
The only palace that I know it exists in in the factory service manuals.
Well then, looks like I'll have to go old school.


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