Honda Car Forum

I have to repalce my compressor on a 94 civic 1.5L and the shop manual does
not appear to give the high and low pressures - it jsut refers to max 19 oz
of r134. What should my guages read when properly vacuumed and and
refilled?

On Thu, 28 Jul 2005 23:01:55 -0400, "Rocky"
<jcadellano.spam@optonline.net> wrote:

>I have to repalce my compressor on a 94 civic 1.5L and the shop manual does
>not appear to give the high and low pressures - it jsut refers to max 19 oz
>of r134. What should my guages read when properly vacuumed and and
>refilled?
>

depends on ambient temperature, it's different everywhere. and did
you get it down to a 400 micron vaccuum?
Chip

It depends on ambient temperature and blower speed...

Professor
www.telstar-electronics.com

On Thu, 28 Jul 2005 23:01:55 -0400, "Rocky"
<jcadellano.spam@optonline.net> wrote:

>I have to repalce my compressor on a 94 civic 1.5L and the shop manual does
>not appear to give the high and low pressures - it jsut refers to max 19 oz
>of r134. What should my guages read when properly vacuumed and and
>refilled?
>


It depends on ambient temperature and humidity, these things aren't
set in stone!
Chip

Humidity has nothing to do with system pressures...

Professor
www.telstar-electronics.com

I ended up taking the car to the gas station to have the a/c fixed - I
didn't have the time to work on it - too many late night at the office.
They said I was right, the compressor clutch failed, but the system did have
pressure. They swapped in the unit I bought from the junk year that has a 1
year warrantty on it.

The problem with the horn was a corroded wire between the relay and the
horn.

"Rocky" <jcadellano.spam@optonline.net> wrote in message
news:B_gGe.1569$7Q1.1223@fe09.lga...
>I have to repalce my compressor on a 94 civic 1.5L and the shop manual does
>not appear to give the high and low pressures - it jsut refers to max 19
>oz of r134. What should my guages read when properly vacuumed and and
>refilled?
>
>

Professor wrote:
>
> Humidity has nothing to do with system pressures...
>
> Professor
> www.telstar-electronics.com

I am not about to enter into a thermodynamic argument, but the factory
service manual has graphs showing system pressures as dependent on both
temperature and relative humidity. So, to the OP, go to
http://www.helminc.com and get the factory manual. It will have the
answer!

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