|
07-07-2014
|
#1 |
 Join Date: Sep 2013
Location: Los Angeles, CA
Posts: 122
|
A/C gauge readings
I thumbed through the Service Manual but didnt see what i was looking for.
What should the high & low side gauges read when the system is fully charged? this is for a 1992 with a R12 system that is all original. many thanks! |
|
|
|
07-07-2014
|
#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
|
Re: A/C gauge readings
What is the Ambient Temperature outside? Humidity?
This should help 
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
|
|
|
|
07-08-2014
|
#3 |
 Join Date: May 2011
Location: Sydney, Australia
Posts: 2,479
|
Re: A/C gauge readings
Keep in mind that your pressure is actually going to be a little higher than what the PT chart says unless you have a big box fan moving air across your condenser.
__________________
Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car |
|
|
|
|
07-08-2014
|
#4 |
|
Join Date: Sep 2013
Location: Los Angeles, CA
Posts: 122
|
Re: A/C gauge readings
Thank you everyone and don't know how i missed that chart.
Temps tend to be high 70's/low 80's, humidity around 45-50%. will make note of higher temps without a fan blowing across the condenser. as always this group is top notch and extremely helpful. big thanks to all. |
|
|
|
|
07-08-2014
|
#5 |
|
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
|
Re: A/C gauge readings
Also looking at the PT chart you can see why R134a will put a bigger drag on the motor than R12
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
|
|
|
|
07-08-2014
|
#6 | |
 
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
|
Re: A/C gauge readings
Excellent Information Jeff....thanks
 Quote:
|
|
|
|
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
