RE: [alfa] A/C fittings in a '93 Spider Veloce

["Gwynne W. Spencer" <gwynnes1@xxxxxxxxxxx>]

There are at least a couple of new, legal,  R-12 replacements some of which 
claims that it is much more efficient than R-12. Do  a  google search on 
R-12 replacement:

http://www.freeze12.com/

http://www.refimax.com/products/fr12.htm

http://www.heco.net/Whatis.htm

http://www.autocool-refrigerants.com/   May be the most interesting

Now to put a damper on all the above, read: 
http://www.se-r.net/heat_ac/converting_from_r12.html

The A/C shops are not embracing them, because for a business to use them 
legally, they have to have another dedicated set of equipment so that the 
various "freons" can not get intermixed.  Some of them will work fine mixed 
with R-12 (just add to a system) but the shops are not allowed to do that

If there is a known seal problem in the compressors, would it not be better 
to get it rebuilt in order to get the replacement (better, I assume) 
seal?  And Who / what is "International?

At 10:31 AM 7/29/2004 -0500, you wrote:
>
>-----Original Message-----
>From: Gwynne W. Spencer [mailto:gwynnes1@domain.elided]
>Sent: Thursday, July 29, 2004 8:09 AM
>To: Fetsch, Ralph
>Cc: alfa-digest@domain.elided
>Subject: Re: [alfa] A/C fittings in a '93 Spider Veloce
>
>Thanks for all the info.
>
>The car is new to me - just  bought it, had been without an Alfa for 12 
>years; .
>
>Could you be more specific as to where the suction fitting is? I ordered 
>the shop manual CD, but it is not here yet. The bypass hose goes from 
>where to where (I assume the water pump at one end?)[Fetsch, Ralph]  the 
>by-pass hose runs from the overflow bottle to the water pump and "T"s" off 
>into the bottom of the thermostat. if i remember correctly the lines going 
>to the compressor are marked "S" & "D". The suction line is the one with 
>the fitting closest to the compressor ( again if i remember correctly, 
>pretty sure though) If you have the gauges you won't be able to connect it 
>wrong as the the suction connection on the guages will not connect to the 
>discharge side of the compressor.
>
>Am I correct that the high pressure fitting is the one hidden under the 
>intake runners? Looks like it would be tough to get to also.[Fetsch, 
>Ralph]  Yes and yes.
>
>In my cursory inspection yesterday, I did not see anything that looked 
>like a receiver/dryer. Location?[Fetsch, Ralph]  the drier is located in 
>front of the right front tire, behind the bumper. You should be able to 
>see the sight glass by looking down in the opening att he very front 
>righthand corner of the hood. If the glass is dirty you may not see it, 
>you can reach up from below and wipe it off.
>
>[Fetsch, Ralph] is the 93 spider R12 or did Alfa change to 134a by then? 
>If the compressor is bad you may want to think about converting to 134a if 
>it hasn't been done already. The 134a doesn't cool as good as R12, but you 
>will be able to get 134a without a license. I switched mine to 134a when I 
>had the compressor rebuild, if you go this route you may want to buy a new 
>compressor from International.
>
>Ralph
>
>Gwynne Spencer
>
>At 07:32 AM 7/29/2004 -0500, you wrote:
>>The one that's hard to get at is the suction side. It's really not that hard
>>to get to if you attach the hose while the motors cold, just bend the 
>>by-pass
>>hose out of the way and attach the hose. If I remember correctly it takes
>>about 20 psig in the system before the clutch will kick in, due to the low
>>pressure cut off switch.
>>
>>If you have to remove the compressor to have it rebuilt, take the top two
>>bolts out and them remove the 3 or 4 bolts that hold the mounting bracket to
>>the motor and remove the whole unit. You can remove the compressor from the
>>mount after you get it out. The job is easier if you pull the radiator and
>>remove the distributor cap.
>>
>>Cordova Ralph
>>1964 Giulia 1600 Spider
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