Chris, Thanks for the reply. The compressor was shipped w/o oil and can be used with either R12 or 134. The muffler on the 63 is connected directly to the compressor so I will go ahead and flush it. I definitely want to make sure that the evaporator and condensor are well flushed so I don't compromise the new components, as you have stated. I was planning on going with the 406 because I have three R12 systems in the driveway right now and it is more of a direct replacement. John ----- Original Message ----- From: "Chris Hawkins" <imperial1966@xxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Friday, May 06, 2005 12:07 PM Subject: Re: IML: 63 air conditioning > You will save a lot of aggravation and annoyance if > you have the system flushed by an A/C shop with all > the right equipment. Any scale or other residual > debris will play havoc with all your new parts. > > If you do decide to do it yourself, definitely > disconnect the expansion valve. Its screen will trap > everything you are trying to flush. (Clean screen > thoroughly before re-installing.) If the 1963 muffler > is mounted inline by the compressor, you can > disconnect it and flush it out thoroughly. If it is > the big coffee can-style muffler mounted on the wheel > well like 64-66, then I would by-pass it. > > By the way, what kind of oil is in your compressor? > Most rebuilt units now come with R-134 compatible > lubricant. That may influence your decision as to > which kind of refrigerant you use. > > I had my 66 converted to R-134 and it works > beautifully. Only changes (besides a flush and use of > an R-134 lube) is the addition of a high-pressure > relief switch on the high side, and an adjustable > thermostat switch that reads evaporator temps. Both > cycle the clutch as needed. The high side switch for > when pressures build up too high, thermostat switch > when evaporator temps go down below 35 degrees - which > it will do easily. This thermostat switch is in place > because the EPR valve is removed from the back of the > compressor. Removing this valve allows the R-134 to > produce an ice cold system with easy, inexpensive > servicing. > > Good luck with your A/C repair. Summer is coming! > > Chris H. > > 66 LeBaron > > > > > Do not be > > --- John and D'Ann <jdfahnestock@xxxxxxxxxxxxx> wrote: > > My air conditioning compressor locked up two > > years ago. I have finally been able to get a > > re-built compressor, clutch, hoses, and > > receiver/dryer. I need some advice on flushing out > > the remaining parts of the system. The instructions > > on the new compressor say that the expansion valve > > and the mufflers should NOT be flushed with solvent, > > does this sound correct? I can understand why not > > the valve, but I would think the mufflers should be. > > I see that there are some special flushing tools, > > but they are fairly expensive for what will probably > > be a one time use for me. Is it good enough to put > > solvent in and blow it out with air? Can I do this > > with the evaporator and condenser in the car or do > > they really need to come out to do it right? > > > > I also am thinking of using AUTOFROST (R-406) > > instead of 134. Has anyone had experience using 406 > > in their Imperials? > > > > Thanks, > > John > > > > __________________________________ > Yahoo! Mail Mobile > Take Yahoo! Mail with you! Check email on your mobile phone. > http://mobile.yahoo.com/learn/mail > > > ----------------- http://www.imperialclub.com ----------------- > This message was sent to you by the Imperial Mailing List. Please > reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be > shared with everyone. Private messages (and attachments) for the > Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx > To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm > ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm