Re: {Chrysler 300} 1960 300F A/C

Do NOT use any that has Propane in it. If you ever have to have it serviced, the Propane will ruin the evacuation machine and you will have a very pissed off service tech. They may even demand you pay for the damages. It's been many years since Propane laced refrigerant was used as a supposed substitute, and these "accidents" were happening, and things change so check with your service guy.

I converted my Dakota to 134-A and you can get a kit off the shelf @ Walmart for about $15-20. It includes conversion valves to add to your original charging valves for the bigger hose connectors, and a bunch of seals for all the hose connections. Takes about an hour to do it.

I sucked it down, held the vacuum to verify no leaks and then charged it with the 134-A. As I recall, it was as cold if not colder than the original and I never touched it again. I sold it several years later and it was blowing cold then.

Ray

On Wed, Sep 29, 2021 at 4:38 PM John Grady <jkg@xxxxxxxxxxxxxxxxx> wrote:

I found a refrigerant that can be used directly , I think R 414 , JY Chouinard up in Canada tried it before I had need to, he says works great ( 300F) .
I believe the reason not used widely by oem is it has propane in it and oem fears fire . But your car tank and carbs are full of gas vs a pint or so of propane .

Changing to 134 brings a lot of $ to ac guy . And expansion valves , oil etc all need update to some kind of one of custom fitted system , works — but not original and that guy can fix it.

I would just use 414 . I hope I have numbers right from memory , maybe contact JY —for hands on report ?

Sent from my iPhone not by choice

On 29 Sep 2021, at 5:17 pm, Albert Stauder <astauder55@xxxxxxxxx> wrote:

Good Afternoon Everyone - hope all are well.

As some of you know I recently purchased a beautiful 1960 300F from Bob M. named Virgil. During restoration in 2003 the factory A/C system was rebuilt and installed in the car. However it was never charged since it was set up for long term storage.

I have spoken with a few A/C people here in Texas and get mixed answers. One guy says there is a synthetic substitute for R-12 in which he could charge. Others say it would have to be converted to a R-134 system. One says I would have to change compressor and convert. I want to keep Virgil as original.

Any insight to this would be appreciated, since I want to do the correct charge for the car.

Thank you for all your help.

Al Stauder
Boerne, Texas

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