Re: {Chrysler 300} RE: AC refrigerant
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Re: {Chrysler 300} RE: AC refrigerant



I have never converted a system to R134. There is and has been a DIRECT REPLACEMENT for R12 since the R12 was deemed to be an issue. I have used it since then. it is R414. No need to do anything except put it in the system even on top of R12 if you wish. I would prefer the R12 be recovered first but if not, the system should be labeled as such so that a future recoverer will be aware. Others will take issue but it is difficult to argue with success.

On Sun, Jul 7, 2024 at 1:00 PM 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Could be…

 

The only two ships I have found in Northen California that do this work on classic cars both said they had too many to many issues switching cars over and they prefer to use R12.

 

Since I have everything rebuilt, a RV2 compressor, and it is on and full of mineral oil, I really do not want to have to clean everything out for the other oil.

 

Other than the environmental issues, what is the downside to R12?

 

James

 

From: dplotkin@xxxxxxxxxxxxxxxxxxx <dplotkin@xxxxxxxxxxxxxxxxxxx>
Sent: Sunday, July 7, 2024 10:05
To: James Douglas <jdd@xxxxxxxxxx>
Cc: 300 club <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: AC refrigerant

 

James-

 

I'm with John Grady on this. You are making an error using R12 and my bet is you will regret it. I have 6 antiques with factory air. 

 

We hear experts say that 134 does not cool as well as R12, or not as well because of steel condensers and all kinds of other conventional wisdom that isn't. 

 

2 of them are on 12 because in 20 years of owning them they have never needed to be evacuated, just topped off. If and when either do, they will be filled with 134. 

 

I have a 62 Bonneville with a steel condenser with 134 that delivers 38-42 degrees all summer regardless of ambient or dew point. 

 

I have a 68 New Yorker, completely stock AC system on 134 that cools to Chrysler specs in the shop manual. It cools beautifully. 

 

R12 does not, in my experience, cool better than 134 when the system is in good order. I base this on 20+ years experience with air conditioned antique automobiles. 

 

Danny Plotkin 

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