a/c won't "pull" charge in, no leaks, good compressor

[George Selby]

At 09:02 AM 9/7/01 -0400, you wrote:
>However, when we were attempting to charge it, we couldn't get the
>compressor to suck in the charge (not even the oil) even though the clutch
>is engaging via the low pressure switch being shorted to get it to pull
>in the R12.

Did you pull vacuum on the system?  It has to be sucked down to 28" mercury 
vacuum, then all the moisture is out.  The vacuum will also draw the 
initial can of refrigerant in, this will provide enough pressure to 
override the low pressure cut out switch and you should be able to put the 
rest in.  Engaging the radiator fan also helps, as this draws air over the 
condenser, enabling more refrigerant to be sucked in.  I was able to refill 
my Coupe in about an hour.

George Selby
70 F-100 Ranger XLT 400 C6
78 F-150 4x4 400 4 spd
83 Audi Coupe GT
86 Nissan 300ZX
92 Subaru Legacy Wagon AWD
gselby4x4 at earthlink.net