Re: IML: Re:airconditiong/retrofit

[randalpark@xxxxxxx]

A couple of months ago I converted my '65 from R-12 to 134A, with no 
parts replacement. The system was professionally evacuated and then 
refilled with new oil and refrigerent. The air at the vents reads 27 
degrees and it doesn't leak.

It cools wonderful, except on really hot days. Then it doesn't cool at 
all. I am suspecting the expansion valve, since when this happens the 
line is cold up to it and the pressure on the low side reads very high, 
which I suppose could be caused by something else. I am not an "A/C" 
guy, but I should have replaced that valve before doing any work. The 
shop I use is well established and has rooms full of NOS parts. They 
offered to replace it for a nominal charge. Since the system is full of 
gas I will probably let them do it.

I have experienced failure of this part on every old working Imperial 
A/C system I have ever had. The one on our '60 failed when the car was 
two years old. I recommend replacing it when working on the system 
whether it seems to need it or not.

Paul W.


-----Original Message-----
From: Brian Keligian <kbriank@xxxxxxxxxxxxx>
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Sun, 29 Jul 2007 7:12 pm
Subject: Re: IML: Re:airconditiong/retrofit




I have converted two 67 Crown Coupes and all I did was change the 
drier, flush the system, add oil and freon.  I don't notice any 
difference in the cooling ability.  Both cars cool very well.

 




 


----- Original Message -----

From:

To: mailing-list@xxxxxxxxxxxxxxxx

Sent: 7/29/2007 7:59:13 PM

Subject: Re: IML: Re:airconditiong/retrofit




I converted my 300H and my 64 LeBaron to 134a.  Changed the oil to 
ester, changed the drier, gassed it up and pushed the button.  Both 
cars work well.  The 134a takes a little longer to cool than R12, but 
for the cost difference, I'll wait.

 

Mark Souders




-----Original Message-----
From: mmonsher@xxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Sat, 28 Jul 2007 11:26 pm
Subject: IML: Re:airconditiong/retrofit



for 66 imperial ac retrofit, i was told that the condensor needed to be 
changed for a high flow model,of course the receiver/dryer needed to be 
changed,  a flush wouldn't hurt.   the oil needs to be changed from the 
original mineral oil to ester(ester works with both r 12  and 134a)(pag 
only with 134a).  Does anyone have experience with a retro fit where 
the condensor was not changed and the ac worked well?  I really don't 
want to change the condensor and would be forced to recharge with r12 
after replacing the v2 compressor which failed(from advanceautoparts, 
or some other source if someone has a good place in the san fernando 
valley.   thanks  mmonsher@xxxxxxx

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